Configuring DB2 databases for query and query-workload tuning by using the IBM Data Studio client, Version 3.1.1

You can configure DB2® for Linux, UNIX, and Windows databases for use the IBM® InfoSphere® Optim™ Query Workload Tuner by using the IBM Data Studio client, Version 3.1.1.

Before you begin

Recommendation: In the DB2 for Linux, UNIX, and Windows database that you are configuring, create a system temporary table space with a page size of 8 KB or larger to avoid potential query tuning errors.

About this task

During configuration, when InfoSphere Optim Query Workload Tuner creates the EXPLAIN tables and the EXPLAIN_GET_MSGS user-defined function, it grants the EXECUTE privilege on the EXPLAIN_GET_MSGS user-defined function to PUBLIC.

Procedure

To configure a DB2 for Linux, UNIX, and Windows database for query tuning with InfoSphere Optim Query Workload Tuner:

  1. In the Data Source Explorer, right-click the connection to the database and select Connect.
  2. Expand the connection by clicking the plus symbol next to it. An icon that represents the database appears. Right-click the database and select Analyze and Tune > Configure for Tuning > Guided Configuration.

    The client detects whether a license for IBM InfoSphere Optim Query Workload Tuner, Version 3.1.1 is active on the database.

    If there is an active license on the database, the client attempts to configure the database for query tuning and query-workload tuning.

    If there is no active license on the database, your choice of action depends on which of the three following situations match your own situation:
    • If you are using the IBM Data Studio administration client, Version 3.1.1, the client attempts to configure the database for query tuning for the no-charge features only. For a list of the no-charge features, see Features by product. If you do not want to configure the database for the no-charge features only, contact the person in your organization who installed both the IBM Data Studio full client, Version 3.1.1 and the IBM InfoSphere Optim Query Workload Tuner for DB2 for Linux, UNIX, and Windows, Version 3.1.1 License Activation Kit on a workstation and have that person activate the license.
    • If you are using the IBM Data Studio full client, Version 3.1.1 and the IBM InfoSphere Optim Query Workload Tuner for DB2 for Linux, UNIX, and Windows, Version 3.1.1 License Activation Kit is not installed on your workstation, the client attempts to configure the database for query tuning with the no-charge features only. For a list of the no-charge features, see Features by product. If you do not want to configure the database for the no-charge features only, contact the person in your organization who installed both the IBM Data Studio full client, Version 3.1.1 and the IBM InfoSphere Optim Query Workload Tuner for DB2 for Linux, UNIX, and Windows, Version 3.1.1 License Activation Kit on a workstation and have that person activate the license.
    • If you are using the IBM Data Studio full client, Version 3.1.1 and the IBM InfoSphere Optim Query Workload Tuner for DB2 for Linux, UNIX, and Windows, Version 3.1.1 License Activation Kit is installed on your workstation, the client attempts to configure the database for both query tuning and query-workload tuning, if your user ID has the authority to run the CREATE FUNCTION statement.

    If the client returns a message that EXPLAIN tables must be dropped or migrated, follow the instructions in the message.

  3. Verify that the database is configured for query and query-workload tuning and that the required data objects are created or enabled.
    1. In the Data Source Explorer, right-click the database, and then click Analyze and Tune > Configure for Tuning > Advanced Configuration and Privilege Management. The Advanced Configuration and Privilege Management window opens.
    2. In the Configuration Status section, you can check the status of the tables, stored procedures, objects, and automatic statistics collection that are required to use the query and query-workload tuning features. If a data object is disabled, follow the instructions in the message that is displayed beside that object to create or enable it.

Results

Your DB2 for Linux, UNIX, and Windows database is configured for query and query-workload tuning with InfoSphere Optim Query Workload Tuner.

What to do next

To start tuning in the Query Tuner Workflow Assistant, right-click the connection in the Data Source Explorer, then click Analyze and Tune > Start Tuning.