Database Output Adapter

Adapter type: db_out. The Database Output adapter sends data to a database table.

You can truncate the table when the adapter starts using the truncateTable property. The required properties depend on the database type you are connecting to. The supported databases for JDBC are Adaptive Server Enterprise, Microsoft SQL Server, IBM DB2, Oracle, and KDB. The supported databases for ODBC are Adaptive Server Enterprise, Microsoft SQL Server, IBM DB2, Oracle, Sybase IQ, SQL Anywhere, TimesTen, MySQL 5.x, and PostgreSQL.

The service.xml file contains service definitions and the properties required for a database connection. For the service definition name, consult the person responsible for configuring and maintaining the service.xml file. See the Administrators Guide for more information on configuring database connections using the service.xml file.

Attention: The Oracle ODBC driver does not support SQL_C_SBIGINT/SQL_C_UBIGINT parameters, causing errors when the Database Output adapter tries to write long and interval Event Stream Processor types to bigint type columns. To successfully use the Oracle and the TimesTen ODBC drivers with the Database Output adapter, add this parameter "<Parameter Name ="WriteBigIntAsChar" > true < /Parameter >" to the service.xml file.

An example of specifying a different date format is when inserting a date column into an Oracle Date column. The default Oracle date format is: 04-Apr-1964 17:12:00, so you specify that the dateFormat parameter is d-%b-%Y %H:%M:%S.

Important: Enable the "Server side prepare" option in the ODBC configuration to ensure that the Database Output adapter writes successfully to the PostgreSQL database using the ODBC driver. For more information on this option, consult your ODBC documentation.

If you use the CCL ATTACH ADAPTER statement to attach an adapter, you must supply the adapter type. The type for this adapter is db_out.

Important: For an ASE database, enable the "ddl in tran" option on the temporary database (tempdb) to discover all tables when using schema discovery. Then, update the Server by performing a checkpoint on tempdb or restarting the database instance. For more information on the "ddl in tran" option, consult your Adaptive Server documentation.

Property Label	Property ID	Type	Description
Database Service	service	`string`	(Required) Name of database service as defined in the service.xml file. No default value.
Date Format	dateFormat	`string`	(Advanced) Format string for parsing date values. Default value is `%Y-%m-%dT%H:%M:%S`.
Timestamp Format	timestampFormat	`string`	(Advanced) Format string for parsing timestamp values. Default value is `%Y-%m-%dT%H:%M:%S`.
Field Mapping	permutation	`permutation`	(Advanced) Mapping between the in-platform and external fields. No default value. Note: For Oracle 11g and DB2 9.7, the metadata services return results in uppercase, so ensure the database column key in the permutation is in uppercase. For example, in CCL, this command does not work: permutation= 'Subject=subject:c_string=c_string' but this one does: permutation= 'Subject=SUBJECT:c_string=C_STRING' For ASE 15.5 and SQL Server 2008, the metadata results are the same as the case in the defined column name, unless the name is modified in the SELECT statement.
Only Base Content	onlyBase	`boolean`	(Advanced) Send only the initial contents of the stream, once. Default value is false.
Batch Limit	batchLimit	`uint`	(Advanced) Number of records to process as a batch. Default value is 1. Note: Using UPSERT with batch processing may negatively impact performance, since this process may be terminated if the adapter receives a delete. The resolution of an UPSERT to either INSERT or UPDATE based on stream content gives you less control over the grouping of these operations. However, frequently changing between operations (INSERT, UPDATE, DELETE, and UPSET) reduces the optimization of using batch processing.
Data Location	datalocation	`string`	(Advanced) Looks up properties in the project configuration. No default value.
Output Table Name (runtime)	table	`tables`	(Optional) Name of the table to push data to. No default value.
Include Base Content	outputBase	`boolean`	(Optional) Output initial stream contents in addition to stream updates. Default value is false.
Truncate the Database Table	truncateTable	`boolean`	(Optional) Start by truncating the database table, then populating with streaming data. Default value is false.
PropertySet	propertyset	`string`	(Advanced) Specifies the name of the property set (a group of properties and values) you want to use from the project configuration file. If you specify the same properties in the project configuration file and the ATTACH ADAPTER statement, the values in the property set override the values defined in the ATTACH ADAPTER statement. No default value.

The Database Output adapter has these limitations:

The output table must exist.
Each row translates to an SQL statement, therefore updates are slow.
If you are using a memory store, you can perform only UPSERT, UPDATE, and DELETE on data that is in the stream.