List of connection properties

Connection properties are available for each connection to an SAP Sybase IQ database. Connection property names are case insensitive.

Connection properties

Property name	Description
`allow_nulls_by_default`	Returns a value indicating whether columns created without specifying either NULL or NOT NULL are allowed to contain NULL values.
`allow_read_client_file`	Returns a value indicating whether the database server allows the reading of files on a client computer.
`allow_snapshot_isolation`	Returns a value indicating whether snapshot isolation is enabled or disabled.
`allow_write_client_file`	Returns a value indicating whether the database server allows the writing of files to a client computer.
`ansi_blanks`	Returns a value indicating when character data is truncated at the client side.
`ansi_close_cursors_on_rollback`	Returns a value indicating whether cursors opened WITH HOLD are closed when a ROLLBACK is performed.
`ansi_permissions`	Returns a value indicating whether privileges are checked for DELETE and UPDATE statements.
`ansi_substring`	Returns a value indicating how the SUBSTRING (SUBSTR) function behaves when negative values are provided for the start or length parameters.
`ansi_update_constraints`	Returns a value indicating the range of updates that are permitted.
`ansinull`	Returns a value that indicates how NULL values are interpreted.
`AppInfo`	Returns information about the client that made the connection. For HTTP connections, this includes information about the browser. For connections using older versions of jConnect or Sybase Open Client, the information may be incomplete. The API value can be DBLIB, ODBC, OLEDB, ADO.NET, iAnywhereJDBC, PHP, PerlDBD, or DBEXPRESS.
`ApproximateCPUTime`	Returns an estimate of the amount of CPU time accumulated by a given connection, in seconds. The value returned may differ from the actual value by as much as 50%, although typical variations are in the 5-10% range. On multi-processor computers, each CPU (or hyperthread or core) accumulates time, so the sum of accumulated times for all connections may be greater than the elapsed time. This property is supported on Windows and Linux.
`auditing`	Returns On if the PUBLIC.auditing option is set to On. Otherwise, returns Off. If the auditing option is set to On, and the conn_auditing option is set to Off, the auditing connection property still returns On, even though the current connection is not being audited.
`auditing_options`	This property is reserved for system use. Do not change the setting of this option.
`Authenticated`	Returns Yes if the application has sent a valid connection authentication string. Returns No if the application has not sent a valid connection authentication string.
`AuthType`	Returns the type of authentication used when connecting. The value returned is one of Standard, Integrated, Kerberos, LDAPUA, or an empty string. An empty string is returned for internal connections and connections for HTTP services that use AUTHORIZATION OFF.
`auto_commit_on_create_local_temp_index`	Returns the setting of the auto_commit_on_create_local_temp_index option.
`background_priority`	This property is deprecated. Returns a value indicating how much impact the current connection has on the performance of other connections.
`BlockedOn`	Returns zero if the current connection isn't blocked, or if it is blocked, the connection number on which the connection is blocked because of a locking conflict.
`blocking`	Returns a value indicating the database server's behavior in response to locking conflicts.
`blocking_others_timeout`	Returns the length of time that another connection can block on the current connection's row and table locks before the current connection is rolled back.
`blocking_timeout`	Returns the length of time, in milliseconds, a transaction waits to obtain a lock.
`BytesReceived`	Returns the number of bytes received during client/server communications. This value is updated for HTTP and HTTPS connections.
`BytesReceivedUncomp`	Returns the number of bytes that would have been received during client/server communications if compression was disabled. This value is the same as the value for BytesReceived if compression is disabled.
`BytesSent`	Returns the number of bytes sent during client/server communications. This value is updated for HTTP and HTTPS connections.
`BytesSentUncomp`	Returns the number of bytes that would have been sent during client/server communications if compression was disabled. This value is the same as the value for BytesSent if compression is disabled.
`CacheHits`	Returns the number of successful reads of the cache.
`CacheRead`	Returns the number of database pages that have been looked up in the cache.
`CacheReadIndInt`	Returns the number of index internal-node pages that have been read from the cache.
`CacheReadIndLeaf`	Returns the number of index leaf pages that have been read from the cache.
`CacheReadTable`	Returns the number of table pages that have been read from the cache.
`CacheReadWorkTable`	Returns the number of cache work table reads.
`CarverHeapPages`	Returns the number of heap pages used for short-term purposes such as query optimization.
`chained`	Returns the transaction mode used in the absence of a BEGIN TRANSACTION statement.
`CharSet`	Returns the CHAR character set used by the connection. This property has extensions that you can specify when querying the property value.
`checkpoint_time`	Returns the maximum time, in minutes, that the database server runs without doing a checkpoint.
`cis_option`	Returns 7 if debugging information for remote data access appears in the database server messages window and 0 if the debugging information for remote data access does not appear in the database server messages window.
`cis_rowset_size`	Returns the number of rows that are returned from remote servers for each fetch.
`ClientLibrary`	Returns jConnect for jConnect connections; CT_Library for Sybase Open Client connections; None for HTTP connections, and CmdSeq for ODBC, embedded SQL, OLE DB, ADO.NET, and SAP Sybase IQ JDBC driver connections.
`ClientNodeAddress`	Returns the node for the client in a client/server connection. When the client and server are both on the same computer, an empty string is returned. This is a synonym for the NodeAddress property. This property returns `NA` if the request that is currently executing is part of an event handler.
`ClientPort`	Returns the client's TCP/IP port number or 0 if the connection isn't a TCP/IP connection.
`ClientStmtCacheHits`	Returns the number of prepares that were not required for this connection because of the client statement cache. This is the number of additional prepares that would be required if client statement caching was disabled.
`ClientStmtCacheMisses`	Returns the number of statements in the client statement cache for this connection that were prepared again. This is the number of times a cached statement was considered for reuse, but could not be reused because of a schema change, a database option setting, or a DROP VARIABLE statement.
`close_on_endtrans`	Returns On or Off to indicate whether cursors are closed at the end of a transaction.
`collect_statistics_on_dml_updates`	Returns On or Off to indicate whether statistics are gathered during the execution of data-altering DML statements such as INSERT, DELETE, and UPDATE.
`Commit`	Returns the number of Commit requests that have been handled.
`CommLink`	Returns the communication link for the connection. This is one of the network protocols supported by SAP Sybase IQ, or local for a same-computer connection. This property returns `NA` if the request that is currently executing is part of an event handler.
`CommNetworkLink`	Returns the communication link for the connection. This is one of the network protocols supported by SAP Sybase IQ. Values include SharedMemory and TCPIP. The CommNetworkLink property always returns the name of the link, regardless of whether it is same-computer or not. This property returns `NA` if the request that is currently executing is part of an event handler.
`CommProtocol`	Returns TDS for Sybase Open Client and jConnect connections, HTTP for HTTP connections, HTTPS for HTTPS connections, and CmdSeq for ODBC, embedded SQL, OLE DB, ADO.NET, and SAP Sybase IQ JDBC driver connections.
`Compression`	Returns On or Off to indicate whether communication compression is enabled on the connection. This property returns `NA` if the request that is currently executing is part of an event handler.
`conn_auditing`	Returns On if auditing is enabled for the connection, even if the auditing option is set to Off.
`ConnectedTime`	Returns the total length of time, in seconds, that a connection has been connected.
`connection_authentication`	Returns the string used to authenticate the client. Authentication is required before the database can be modified.
`continue_after_raiserror`	Returns On or Off to indicate whether execution of a procedure or trigger is stopped whenever the RAISERROR statement is encountered.
`conversion_error`	Returns On or Off to indicate data type conversion failures are reported when fetching information from the database.
`cooperative_commit_timeout`	Returns the time, in milliseconds, that the database server waits for other connections to fill a page of the log before writing to disk.
`cooperative_commits`	Returns On or Off to indicate when commits are written to disk.
`CurrentLineNumber`	Returns the current line number of the procedure or compound statement a connection is executing. The procedure can be identified using the CurrentProcedure property. If the line is part of a compound statement from the client, an empty string is returned.
`CurrentProcedure`	Returns the name of the procedure that a connection is currently executing. If the connection is executing nested procedure calls, the name is the name of the current procedure. If there is no procedure executing, an empty string is returned.
`Cursor`	Returns the number of declared cursors that are currently being maintained by the database server.
`CursorOpen`	Returns the number of open cursors that are currently being maintained by the database server.
`database_authentication`	Returns the string used to authenticate the database. Authentication is required for authenticated database servers before the database can be modified.
`date_format`	Returns a string indicating the format for dates retrieved from the database.
`date_order`	Returns a string indicating how dates are formatted.
`db_publisher`	Returns the user ID of the database publisher.
`DBNumber`	Returns the ID number of the database.
`debug_messages`	Returns On or Off to indicate whether MESSAGE statements that include a DEBUG ONLY clause are executed.
`dedicated_task`	Returns On or Off to indicate whether a request handling task is dedicated exclusively to handling requests for the connection.
`default_dbspace`	Returns the name of the default dbspace, or an empty string if the default dbspace has not been specified.
`default_timestamp_increment`	Returns a value, in microseconds, that is added to a column of type TIMESTAMP to keep values in the column unique.
`delayed_commit_timeout`	Returns the time, in milliseconds, that the database server waits to return control to an application following a COMMIT.
`delayed_commits`	Returns On or Off to indicate when the database server returns control to an application following a COMMIT.
`disk_sandbox`	Returns On or Off to indicate whether the read-write file operations of the database are restricted to the directory where the main database file is located.
`DiskRead`	Returns the number of pages that have been read from disk.
`DiskReadHint`	Returns the number of disk read hints.
`DiskReadHintPages`	Returns the number of disk read hint pages.
`DiskReadIndInt`	Returns the number of index internal-node pages that have been read from disk.
`DiskReadIndLeaf`	Returns the number of index leaf pages that have been read from disk.
`DiskReadTable`	Returns the number of table pages that have been read from disk.
`DiskReadWorkTable`	Returns the number of disk work table reads.
`DiskSyncRead`	Returns the number of disk reads issued synchronously.
`DiskSyncWrite`	Returns the number of writes issued synchronously.
`DiskWaitRead`	Returns the number of times the database server waited for an asynchronous read.
`DiskWaitWrite`	Returns the number of times the database server waited for an asynchronous write.
`DiskWrite`	Returns the number of modified pages that have been written to disk.
`DiskWriteHint`	Returns the number of disk write hints.
`DiskWriteHintPages`	Returns the number of disk write hint pages.
`divide_by_zero_error`	Returns On if division by zero results in an error and Off if division by zero is not an error.
`Encryption`	Returns a value that indicates whether the connection is encrypted.
`escape_character`	This property is reserved for system use. Do not change the setting of this option.
`EventName`	Returns the name of the associated event if the connection is running an event handler. Otherwise, an empty string is returned.
`exclude_operators`	This property is reserved for system use. Do not change the setting of this option.
`ExprCacheAbandons`	Returns the number of times that the expression cache was abandoned because the hit rate was too low.
`ExprCacheDropsToReadOnly`	Returns the number of times that the expression cache dropped to read-only status because the hit rate was low.
`ExprCacheEvicts`	Returns the number of evictions from the expression cache.
`ExprCacheHits`	Returns the number of hits in the expression cache.
`ExprCacheInserts`	Returns the number of values inserted into the expression cache.
`ExprCacheLookups`	Returns the number of lookups done in the expression cache.
`ExprCacheResumesOfReadWrite`	Returns the number of times that the expression cache resumed read-write status because the hit rate increased.
`ExprCacheStarts`	Returns the number of times that the expression cache was started.
`extended_join_syntax`	Returns On if queries with duplicate correlation name syntax for multi-table joins are allowed, Off if they are reported as an error.
`extern_login_credentials`	Returns whether the remote connections are attempted using the logged in user's external login credentials or the effective user's external login credentials.
`fire_triggers`	Returns On if triggers are fired in the database, otherwise, returns Off.
`first_day_of_week`	Returns the number that is used for the first day of the week, where 7=Sunday and 1=Monday.
`for_xml_null_treatment`	Returns Omit if elements and attributes that contain NULL values are omitted from the result and Empty if empty elements or attributes are generated for NULL values when the FOR XML clause is used in a query.
`force_view_creation`	This property is reserved for system use. Do not change the setting of this option.
`FullCompare`	Returns the number of comparisons that have been performed beyond the hash value in an index.
`GetData`	Returns the number of GETDATA requests.
`global_database_id`	Returns the starting value used for columns created with DEFAULT GLOBAL AUTOINCREMENT.
`HashForcedPartitions`	Returns the number of times that a hash operator was forced to partition because of competition for memory.
`HashRowsFiltered`	Returns the number of probe rows rejected by bit-vector filters.
`HashRowsPartitioned`	Returns the number of rows written to hash work tables.
`HashWorkTables`	Returns the number of work tables created for hash-based operations.
`HeapsCarver`	Returns the number of heaps used for short-term purposes such as query optimization.
`HeapsLocked`	Returns number of relocatable heaps currently locked in the cache.
`HeapsQuery`	Returns the number of heaps used for query processing (hash and sort operations).
`HeapsRelocatable`	Returns the number of relocatable heaps.
`http_connection_pool_basesize`	Returns the nominal threshold size of database connections.
`http_connection_pool_timeout`	Returns the maximum length of time that unused connections are stored in the connection pool.
`http_session_timeout`	Returns the current HTTP session timeout, in minutes.
`HttpServiceName`	Returns the service name entry point for the current HTTP request. This property is useful for error reporting and control flow. An empty string is returned when this property is selected from a stored procedure that did not originate from an HTTP request or if the connection is currently inactive or waiting to continue an HTTP session.
`IdleTimeout`	Returns the idle timeout value of the connection. This property returns `NA` if the request that is currently executing is part of an event handler.
`IndAdd`	Returns the number of entries that have been added to indexes.
`IndLookup`	Returns the number of entries that have been looked up in indexes.
`integrated_server_name`	Returns the name of the Domain Controller server used for looking up Windows user group membership for integrated logins.
`IsDebugger`	Returns Yes or No to distinguish connections that are being used to run the SAP Sybase IQ debugger. The value is Yes if the current connection number corresponds to the connection number of a debugger connection, and No otherwise.
`isolation_level`	Returns the isolation level of the connection (0, 1, 2, 3, Snapshot, Statement-snapshot, or Readonly-statement-snapshot).
`java_class_path`	Returns a list of additional directories or JAR files that are searched for classes.
`java_location`	Returns the path of the Java VM for the database if one has been specified.
`java_main_userid`	This property is deprecated.
`java_vm_options`	Returns the command line options that the database server uses when it launches the Java VM.
`Language`	Returns the locale language.
`LastCommitRedoPos`	Returns the redo log position after the last COMMIT operation was written to the transaction log by the connection.
`LastIdle`	Returns the number of ticks between requests.
`LastPlanText`	Returns the long text plan of the last query executed on the connection. You control the remembering of the last plan by setting the RememberLastPlan option of the sa_server_option system procedure, or using the -zp server option.
`LastReqTime`	Returns the time at which the last request for the specified connection started. This property can return an empty string for internal connections, such as events.
`LastStatement`	Returns the most recently prepared SQL statement for the current connection. The LastStatement value is set when a statement is prepared, and is cleared when a statement is dropped. Only one statement string is remembered for each connection. If sa_conn_activity reports a non-empty value for a connection, it is most likely the statement that the connection is currently executing. If the statement had completed, it would likely have been dropped and the property value would have been cleared. If an application prepares multiple statements and retains their statement handles, then the LastStatement value does not reflect what a connection is currently doing. When client statement caching is enabled, and a cached statement is reused, this property returns an empty string.
`LivenessTimeout`	Returns the liveness timeout period for the current connection. This property returns `NA` if the request that is currently executing is part of an event handler.
`lock_rejected_rows`	This property is reserved for system use. Do not change the setting of this option.
`LockCount`	Returns the number of locks held by the connection.
`LockIndexID`	Returns the identifier of the locked index.
`LockName`	Returns a 64-bit unsigned integer value representing the lock for which a connection is waiting.
`LockRowID`	Returns the identifier of the locked row.
`LockTableOID`	Returns zero if the connection isn't blocked, or if the connection is on a different database than the connection calling CONNECTION_PROPERTY. Otherwise, this is the object ID of the table for the lock on which this connection is waiting. The object ID can be used to look up table information using the SYSTAB system view.
`log_deadlocks`	Returns On if deadlock information is reported; otherwise, returns Off.
`LogFreeCommit`	Returns the number of redo free commits. A redo free commit occurs when a commit of the transaction log is requested but the log has already been written (so the commit was done for free.)
`login_mode`	Returns one or more of Standard, Integrated, Kerberos, or LDAPUA to indicate the type of logins that are supported.
`login_procedure`	Returns the name of the stored procedure used to set compatibility options at startup.
`LoginTime`	Returns the date and time the connection was established.
`LogWrite`	Returns the number of pages that have been written to the transaction log.
`materialized_view_optimization`	Returns a value indicating whether materialized views are used during query optimization: Disabled Fresh Stale `N` Minute[s] `N` Hour[s] `N` Day[s] `N` Week[s] `N` Month[s]
`max_client_statements_cached`	Returns the number of statements cached by the client.
`max_cursor_count`	Returns a value specifying the maximum number of cursors that a connection can use at once.
`max_hash_size`	This property is deprecated.
`max_plans_cached`	Returns a value specifying the maximum number of execution plans to be stored in a cache.
`max_priority`	Returns a value indicating the maximum priority level a connection can have.
`max_query_tasks`	Returns the maximum number of requests that the database server can use to process a query.
`max_recursive_iterations`	Returns a value specifying the maximum number of iterations a recursive common table expression can make.
`max_statement_count`	Returns a value specifying the maximum number of prepared statements that a connection can use simultaneously.
`max_temp_space`	Returns a value indicating the maximum amount of temporary file space available for a connection.
`MessageReceived`	Returns the string that was generated by the MESSAGE statement that caused the WAITFOR statement to be interrupted. Otherwise, an empty string is returned.
`min_password_length`	Returns the minimum length for new passwords in the database.
`min_role_admins`	Returns the minimum number of administrators required for a role.
`Name`	Returns the name of the current connection. You can specify a connection name using the ConnectionName (CON) connection parameter. The following names are used for temporary connections created by the database server: INT:ApplyRecovery INT:BackupDB INT:Checkpoint INT:Cleaner INT:CloseDB INT:CreateDB INT:CreateMirror INT:DelayedCommit INT:DiagRcvr INT:DropDB INT:EncryptDB INT:Exchange INT:FlushMirrorLog INT:FlushStats INT:HTTPReq INT:PromoteMirror INT:PurgeSnapshot INT:ReconnectMirror INT:RecoverMirror INT:RedoCheckpoint INT:RefreshIndex INT:ReloadTrigger INT:RenameMirror INT:RestoreDB INT:StartDB INT:VSS
`NcharCharSet`	Returns the NCHAR character set used by the connection. This property has extensions that you can specify when querying the property value.
`nearest_century`	Returns a value that indicates how two-digit years are interpreted in string-to-date conversions.
`NodeAddress`	Returns the node for the client in a client/server connection. When the client and server are both on the same computer, an empty string is returned.
`non_keywords`	Returns a list of keywords, if any, that are turned off so they can be used as identifiers.
`Number`	Returns the connection ID (a number) for the current connection.
`NumLocalTempTables`	Returns the number of local temporary tables in use by the connection. When a local temporary table is dropped or goes out of scope, it is still considered to be in use until the next COMMIT.
`odbc_describe_binary_as_varbinary`	Returns Off if the SAP Sybase IQ ODBC driver describes both BINARY and VARBINARY columns as SQL_BINARY and returns On if the ODBC driver describes BINARY and VARBINARY columns as SQL_VARBINARY.
`odbc_distinguish_char_and_varchar`	Returns Off if CHAR columns are described as SQL_VARCHAR, and On if CHAR columns are described as SQL_CHAR.
`oem_string`	Returns the string stored in the header page of the database file.
`on_charset_conversion_failure`	Returns one of Ignore, Warning, or Error to indicate the behavior when an error is encountered during character set conversion.
`on_tsql_error`	Returns one of Stop, Conditional, or Continue to indicate the behavior when an error is encountered while executing a stored procedure or T-SQL batch.
`optimization_goal`	Returns one of First-row or All-rows to indicate how query processing is optimized.
`optimization_level`	Returns a value between 0 and 15. This number is used to control the level of effort made by the SAP Sybase IQ query optimizer to find an access plan for a SQL statement.
`optimization_workload`	Returns a value indicating the level of effort made by the SAP Sybase IQ query optimizer to find an access plan for a SQL statement.
`OSUser`	Returns the operating system user name associated with the client process. If the client process is impersonating another user (or the set ID bit is set on Unix), the impersonated user name is returned. An empty string is returned for version 10.0.1 and earlier clients, and for HTTP and TDS clients.
`PacketSize`	Returns the packet size used by the connection, in bytes. This property returns `NA` if the request that is currently executing is part of an event handler.
`PacketsReceived`	Returns the number of client/server communication packets received. This value is not updated for HTTP or HTTPS connections.
`PacketsReceivedUncomp`	Returns the number of packets that would have been received during client/server communications if compression was disabled. (This value is the same as the value for PacketsReceived if compression is disabled.)
`PacketsSent`	Returns the number of client/server communication packets sent. This value is not updated for HTTP or HTTPS connections.
`PacketsSentUncomp`	Returns the number of packets that would have been sent during client/server communications if compression was disabled. (This value is the same as the value for PacketsSent if compression is disabled.)
`ParentConnection`	Returns the connection ID of the connection that created a temporary connection to perform a database operation (such as performing a backup or creating a database). For other types of connections, this property returns NULL.
`pinned_cursor_percent_of_cache`	Returns the percentage of the cache that can be used for pinning cursors.
`post_login_procedure`	Returns the name of the procedure whose result set contains messages that should be displayed by applications when a user connects.
`precision`	Returns the decimal and numeric precision setting.
`prefetch`	Returns Off if no prefetching is done, Conditional if prefetching occurs unless the cursor type is SENSITIVE or the query includes a proxy table, or Always if prefetching is done even for SENSITIVE cursor types and cursors that involve a proxy table.
`Prepares`	Returns the number of statement preparations performed for the connection.
`PrepStmt`	Returns the number of prepared statements currently being maintained by the database server.
`preserve_source_format`	Returns On if the original source definition of procedures, triggers, views, and event handlers is saved in system tables, otherwise, returns Off.
`prevent_article_pkey_update`	Returns On if updates are not allowed to the primary key columns of tables involved in publications, otherwise returns Off.
`priority`	Returns a value indicating the priority level of a connection.
`Progress`	Returns information about how long a query has been running. For example: 43% (9728 of 22230 pages) complete after 00:00:05; estimated 00:00:06 remaining This property has extensions that you can specify when querying the property value.
`progress_messages`	Returns the value of the progress_messages option.
`query_mem_timeout`	Returns the value of the query_mem_timeout option.
`QueryBypassed`	Returns the number of requests optimized by the optimizer bypass.
`QueryBypassedCosted`	Returns the number of requests processed by the optimizer bypass using costing.
`QueryBypassedHeuristic`	Returns the number of requests processed by the optimizer bypass using heuristics.
`QueryBypassedOptimized`	Returns the number of requests initially processed by the optimizer bypass and subsequently fully optimized by the SAP Sybase IQ optimizer.
`QueryCachedPlans`	Returns the number of query execution plans currently cached for the connection.
`QueryCachePages`	Returns the number of cache pages used to cache execution plans.
`QueryDescribedBypass`	Returns the number of describe requests processed by the optimizer bypass.
`QueryDescribedOptimizer`	Returns the number of describe requests processed by the optimizer.
`QueryHeapPages`	Returns the number of cache pages used for query processing (hash and sort operations).
`QueryJHToJNLOptUsed`	Returns the number of times a hash join was converted to a nested loops join.
`QueryLowMemoryStrategy`	Returns the number of times the server changed its execution plan during execution as a result of low memory conditions. The strategy can change because less memory is currently available than the optimizer estimated, or because the execution plan required more memory than the optimizer estimated.
`QueryMemActiveCurr`	Returns the number of requests actively using query memory.
`QueryMemGrantFailed`	Returns the total number of times a request waited for query memory, but failed to get it.
`QueryMemGrantGranted`	Returns the number of pages currently granted to requests.
`QueryMemGrantRequested`	Returns the total number of times any request attempted to acquire query memory.
`QueryMemGrantWaited`	Returns the total number of times any request waited for query memory.
`QueryMemGrantWaiting`	Returns the current number of requests waiting for query memory.
`QueryOpened`	Returns the number of OPEN requests for execution.
`QueryOptimized`	Returns the number of requests fully optimized.
`QueryReused`	Returns the number of requests that have been reused from the plan cache.
`QueryRowsFetched`	Returns the number of rows that have been read from base tables, either by a sequential scan or an index scan, for this connection.
`QueryRowsMaterialized`	Returns the number of rows that are written to work tables during query processing.
`quoted_identifier`	Returns On if strings enclosed in double quotes are interpreted as identifiers, or Off if they are interpreted as literal strings.
`read_past_deleted`	Returns On if sequential scans at isolation levels 1 and 2 skip uncommitted deleted rows, and Off if sequential scans block on uncommitted deleted rows at isolation levels 1 and 2.
`recovery_time`	Returns the maximum length of time, in minutes, that the database server will take to recover from system failure.
`RecursiveIterations`	Returns the number of iterations for recursive unions.
`RecursiveIterationsHash`	Returns the number of times recursive hash join used a hash strategy.
`RecursiveIterationsNested`	Returns the number of times recursive hash join used a nested loops strategy.
`RecursiveJNLMisses`	Returns the number of index probe cache misses for recursive hash join.
`RecursiveJNLProbes`	Returns the number of times recursive hash join attempted an index probe.
`remote_idle_timeout`	Returns the time, in seconds, of inactivity that web service client procedures and functions will tolerate.
`replicate_all`	For internal use only.
`ReqCountActive`	Returns the number of requests processed, or NULL if the RequestTiming server property is set to Off.
`ReqCountBlockContention`	Returns the number of times the connection waited for atomic access, or NULL if the -zt option was not specified.
`ReqCountBlockIO`	Returns the number of times the connection waited for I/O to complete, or NULL if the -zt option was not specified.
`ReqCountBlockLock`	Returns the number of times the connection waited for a lock, or NULL if the -zt option was not specified.
`ReqCountUnscheduled`	Returns the number of times the connection waited for scheduling, or NULL if the -zt option was not specified.
`ReqStatus`	Returns the status of the request. It can be one of the following values: Idle – The connection is not currently processing a request. Unscheduled* – The connection has work to do and is waiting for an available database server worker. BlockedIO* – The connection is blocked waiting for an I/O. BlockedContention* – The connection is blocked waiting for access to shared database server data structures. BlockedLock – The connection is blocked waiting for a locked object. Executing – The connection is executing a request. The values marked with an asterisk (*) are only returned when logging of request timing information has been turned on for the database server using the -zt server option. If request timing information is not being logged (the default), the values are reported as Executing.
`ReqTimeActive`	Returns the amount of time, in seconds, spent processing requests, or NULL if the -zt option was not specified.
`ReqTimeBlockContention`	Returns the amount of time, in seconds, spent waiting for atomic access, or NULL if the RequestTiming server property is set to Off.
`ReqTimeBlockIO`	Returns the amount of time, in seconds, spent waiting for I/O to complete, or NULL if the -zt option was not specified.
`ReqTimeBlockLock`	Returns the amount of time, in seconds, spent waiting for a lock, or NULL if the -zt option was not specified.
`ReqTimeUnscheduled`	Returns the amount of unscheduled time, or NULL if the -zt option was not specified.
`ReqType`	Returns the type of the last request. If a connection has been cached by connection pooling, its ReqType value is CONNECT_POOL_CACHE.
`request_timeout`	Returns the maximum time a single request can run.
`RequestsReceived`	Returns the number of client/server communication requests or round trips. It is different from PacketsReceived in that multi-packet requests count as one request, and liveness packets are not included.
`reserved_keywords`	Returns a list of non-default reserved keywords that are enabled for the database.
`return_date_time_as_string`	Returns On if DATE, TIME, and TIMESTAMP values are returned to applications as a string, and Off if they are returned as a DATE or TIME data type.
`Rlbk`	The number of rollback requests that have been handled.
`rollback_on_deadlock`	Returns After when referential integrity actions are executed after the UPDATE or DELETE, and Before if they are executed before the UPDATE or DELETE.
`RollbackLogPages`	Returns the number of pages in the rollback log.
`row_counts`	Returns On if the row count is always accurate, and Off if the row count is usually an estimate.
`scale`	Returns the decimal and numeric scale for the connection.
`secure_feature_key`	Stores the key that is used to enable and disable features for a database server. Selecting the value of this property always returns an empty string.
`ServerNodeAddress`	Returns the node for the server in a client/server connection. When the client and server are both on the same computer, an empty string is returned. This property returns `NA` if the request that is currently executing is part of an event handler.
`ServerPort`	Returns the database server's TCP/IP port number or 0.
`SessionCreateTime`	Returns the time the HTTP session was created.
`SessionID`	Returns the session ID for the connection if it exists, otherwise, returns an empty string.
`SessionLastTime`	Returns the time of the last request for the HTTP session.
`SessionTimeout`	Returns the time, in minutes, the HTTP session persists during inactivity.
`SnapshotCount`	Returns the number of snapshots associated with the connection.
`sort_collation`	Returns Internal if the ORDER BY clause remains unchanged, otherwise the collation name or collation ID is returned.
`SortMergePasses`	Returns the number of merge passes used during sorting.
`SortRowsMaterialized`	Returns the number of rows written to sort work tables.
`SortRunsWritten`	Returns the number of sorted runs written during sorting.
`SortSortedRuns`	Returns the number of sorted runs created during run formation.
`SortWorkTables`	Returns the number of work tables created for sorting.
`sql_flagger_error_level`	Returns one of the following values to indicate which SQL that is not part of a specified set of SQL/2003 is flagged as an error: E – Flag syntax that is not entry-level SQL/2003 syntax I – Flag syntax that is not intermediate-level SQL/2003 syntax F – Flag syntax that is not full-SQL/2003 syntax W – Allow all supported syntax
`sql_flagger_warning_level`	Returns one of the following values to indicate which SQL that is not part of a specified set of SQL/2003 is flagged as a warning: E – Flag syntax that is not entry-level SQL/2003 syntax I – Flag syntax that is not intermediate-level SQL/2003 syntax F – Flag syntax that is not full-SQL/2003 syntax W – Allow all supported syntax
`st_geometry_asbinary_format`	Returns a value that indicates how spatial values are converted from a geometry to a binary format.
`st_geometry_astext_format`	Returns a value that indicates how spatial values are converted from a geometry to text.
`st_geometry_asxml_format`	Returns a value that indicates how spatial values are converted from a geometry to xml.
`st_geometry_describe_type`	Returns a value that indicates spatial values are described.
`st_geometry_interpolation`	Returns the interpolation setting for ST_CircularString geometries.
`st_geometry_on_invalid`	Returns a value that indicates the behavior when a geometry fails surface validation.
`StatementDescribes`	Returns the total number of statements processed by DESCRIBE requests.
`StatementPostAnnotates`	Returns the number of statements processed by the semantic query transformation phase.
`StatementPostAnnotatesSimple`	Returns the number of statements processed by the semantic query transformation phase, but that skipped some of the semantic transformations.
`StatementPostAnnotatesSkipped`	Returns the number of statements that have completely skipped the semantic query transformation phase.
`string_rtruncation`	Returns On if an error is raised when a string is truncated, and returns Off if an error is not raised and the character string is silently truncated.
`subsume_row_locks`	Returns On if the database server acquires individual row locks for a table, otherwise, returns Off.
`suppress_tds_debugging`	Returns Off if TDS debugging information appears in the database server messages window, and returns On if debugging information does not appear in the database server messages window.
`synchronize_mirror_on_commit`	Returns On if the database mirror server is synchronized on commit, otherwise returns Off.
`tds_empty_string_is_null`	Returns On if empty strings are returned as NULL for TDS connections, and returns Off if a string containing one blank character is returned for TDS connections.
`temp_space_limit_check`	Returns On if the database server checks the amount of temporary space available for a connection, and returns Off if the database server does not check the amount of space available for a connection.
`TempFilePages`	Returns the number of temporary file pages used by the connection.
`TempTablePages`	Returns the number of pages in the temporary file used for temporary tables.
`time_format`	Returns the string format used for times retrieved from the database.
`time_zone_adjustment`	Returns the number of minutes that must be added to the Coordinated Universal Time (UTC) to display time local to the connection.
`timestamp_format`	Returns the format for timestamps that are retrieved from the database.
`timestamp_with_time_zone_format`	Returns the format for TIMESTAMP WITH TIME ZONE values retrieved from the database.
`TimeZoneAdjustment`	Returns the number of minutes that must be added to the Coordinated Universal Time (UTC) to display time local to the connection.
`TransactionStartTime`	Returns a string containing the time the database was first modified after a COMMIT or ROLLBACK, or an empty string if no modifications have been made to the database since the last COMMIT or ROLLBACK.
`truncate_timestamp_values`	Returns On if the number of decimal places used in the TIMESTAMP values is limited, otherwise, returns Off.
`trusted_certificates_file`	Returns the file that contains the list of trusted Certificate Authority certificates when the database server acts as a client to an LDAP server.
`tsql_outer_joins`	Returns On if Transact-SQL outer joins can be used in DML statements.
`tsql_variables`	Returns On if you can use the @ sign instead of the colon as a prefix for host variable names in embedded SQL, otherwise, returns Off.
`UncommitOp`	Returns the number of uncommitted operations.
`updatable_statement_isolation`	Returns the isolation level (0, 1, 2, or 3) used by updatable statements when the isolation_level option is set to Readonly-statement-snapshot.
`update_statistics`	Returns On if this connection can send query feedback to the statistics governor. When the update_statistics option is set to Off, the statistics governor does not receive query feedback from the current connection.
`upgrade_database_capability`	This property is reserved for system use. Do not change the setting of this option.
`user_estimates`	Returns one of the following values that controls whether selectivity estimates in query predicates are respected or ignored by the query optimizer: Enabled – All user-supplied selectivity estimates are respected. You can also use On to turn on this option. Override-Magic – A user selectivity estimate is respected and used only if the optimizer would otherwise choose to use its last-resort, heuristic value (also called the magic value). Disabled – All user estimates are ignored and magic values are used when no other estimate data is available. You can also use Off to turn off this option.
`UserAppInfo`	Returns the string specified by the AppInfo connection parameter in a connection string.
`UserDefinedCounterRate01`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the change in the value of the counter over time.
`UserDefinedCounterRate02`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the change in the value of the counter over time.
`UserDefinedCounterRate03`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the change in the value of the counter over time.
`UserDefinedCounterRate04`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the change in the value of the counter over time.
`UserDefinedCounterRate05`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the change in the value of the counter over time.
`UserDefinedCounterRaw01`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the absolute value of the counter.
`UserDefinedCounterRaw02`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the absolute value of the counter.
`UserDefinedCounterRaw03`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the absolute value of the counter.
`UserDefinedCounterRaw04`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the absolute value of the counter.
`UserDefinedCounterRaw05`	Returns the current value of the user-defined performance counter. The semantics of this property are defined by the client application. This counter can also be accessed from the Performance Monitor. The Performance Monitor displays the absolute value of the counter.
`UserID`	Returns the user ID for the connection.
`UtilCmdsPermitted`	Returns On or Off to indicate whether utility commands such as CREATE DATABASE, DROP DATABASE, and RESTORE DATABASE are permitted for the connection.
`uuid_has_hyphens`	This property controls the formatting of unique identifier values when they are converted to strings.
`verify_password_function`	Returns the name of the function used for password verification if one has been specified.
`wait_for_commit`	Returns On if the database does not check foreign key integrity until the next COMMIT statement. Otherwise, returns Off and all foreign keys that are not created with the check_on_commit option are checked as they are inserted, updated or deleted.
`WaitStartTime`	Returns the time at which the connection started waiting (or an empty string if the connection is not waiting).
`WaitType`	Returns the reason for the wait, if it is available. Possible values for WaitType are: lock – Returned if the connection is waiting on a lock. waitfor – Returned if the connection is executing a waitfor statement. empty string – Returned if the connection is not waiting, or if the reason for the wait is not available.
`webservice_namespace_host`	Returns the hostname to be used as the XML namespace within generated WSDL documents if one has been specified.
`webservice_sessionid_name`	Returns the session identifier name that is used by the web server to determine whether session management is being used.