DSN-Style Connection Properties for the Perl Driver

Several new DSN properties have been added and a few properties have changed in the Perl Driver.

Here is the authoritative list of properties and their values currently supported in version 15.7 SP 110.

SybaseASE Driver Connect Syntax

For the DBI connect() method, the following rules apply for establishing attribute and value pairs. The DSN string parameter of the method must contain dbi:SybaseASE: followed by one or more semicolon (;) separated string of name=value parts as explained:

Name – a case-insensitive value that can be delimited by an equal sign (=) or semicolon (;). An attribute can have multiple synonyms. For example, server and servername refer to the same attribute.
Equals sign (=) – indicates the start of the value to be assigned to the Name. If there is no equals sign, the Name is assumed to be of boolean type with a value of true.
Value – a string that is terminated by a semicolon (;). Use a backslash (\) if a semicolon or another back slash is present in the value. Values can be of type boolean, integer, or string. Valid values for boolean types are true, false, on, off, 1, and 0.
Note: If a boolean name is present without a value, the boolean type will be set to true.

Valid Attribute Names and Values

List of consolidated attribute names and values for the dsn keyword argument.

Name	Description	Value
ANSINull	Determines whether evaluation of NULL-valued operands in SQL equality (=) or inequality (!=) comparisons is ANSI-compliant. If the value is true, Adaptive Server enforces the ANSI behavior that `= NULL` and `is NULL` are not equivalent. In standard Transact-SQL, `= NULL` and `is NULL` are considered to be equivalent. This option affects `<> NULL` and `is not NULL` behavior in a similar fashion.	Boolean value. The default is false.
BulkLogin	Determines whether a connection is enabled to perform a bulk-copy operation.	Boolean value. The default is false.
ChainXacts	If true, Adaptive Server uses chained transaction behavior, that is, each server command is considered to be a distinct transaction. Adaptive Server implicitly executes a begin transaction before any of these statements: delete, fetch, insert, open, select, and update. You must still explicitly end or roll back the transaction. If false, an application must specify explicit begin transaction statements paired with commit or rollback statements.	Boolean value. The default is false.
Charset	Specifies the charset to be used on this connection.	String value. The default character set is now set to iso_1.
Confidentiality	Whether data encryption service is performed on the connection.	Boolean value. The default is false.
CredentialDelegation	Determines whether the server is allowed to connect to a second server using the user’s delegated credentials.	Boolean value. The default is false.
DetectReplay	Determines whether the connection’s security mechanism detects replayed transmissions.	Boolean value. The default is false.
DetectOutOfSequence	Determines whether the connection’s security mechanism detects transmissions that arrive out of sequence.	Boolean value. The default is false.
Hostname	The host name of the client machine.	String value
HostPort	Specifies the combination of host and port of the server to connect to.	String value. The format of the string is "hostname portnumber" or "hostname:portnumber".
Integrity	Determines whether the connection’s security mechanism performs data integrity checking.	Boolean value. The default is false.
Interfaces	The path and name of the interfaces file.	String value.
Keytab	The path and name of the file from which a connection’s security mechanism reads the security key to go with the `username` value.	String value. The default is NULL, that is, the user must have established credentials before connecting.
Locale	Determines which language and character set to use for messages, datatype conversions, and datetime formats.	String value.
Language	Determines which language set to use for messages,datatype conversions, and datetime formats.	String value.
LoginTimeout	Specifies the login timeout value.	Integer value.
MaxConnect	Specifies the maximum number of simultaneously open connections that a context may have.	Integer value. Default value is 25. Negative and zero values are not allowed.
MutualAuthentication	Determines whether the server is required to authenticate itself to the client.	Boolean value. The default is false.
NetworkAuthentication	Determines whether the connection’s security mechanism performs network-based user authentication.	Boolean value. The default is false.
PacketSize	Specifies the TDS packet size.	Integer value.
Password	Specifies the password used to log in to the server.	String value.
PasswordEncryption EncryptPassword	Determines whether the connection uses asymmetrical password encryption.	Boolean value. The default is false.
SecurityMechanism	Specifies the name of the network security mechanism that performs security services for the connection.	String value. The default value depends on security driver configuration.
Server Servername	Specifies the name of the server to which you are connected.	String value.
ServerPrincipalName Kerberos	Specifies the network security principal name for the server to which a connection is opened.	String value. The default is NULL, which means that the connection assumes that the server principal name is the same as its `ServerName` value.
ScriptName	The application name used when logging in to the server.	String value.
SslCAFile	The path to the file containing trusted CA certificates.	String value.
TDSKeepalive	Determines whether to use the KEEPALIVE option.	Boolean value. The default is true.
Timeout	Specifies the connection timeout value.	Integer value.
UID User Username	Specifies the name used to log in to the server.	String value.