Welcome
Quest SQL Optimizer for IBM DB2 z/OS ensures optimal SQL performance by generating alternatives and testing SQL for maximum application performance.
Optimize SQL
SQL Optimizer analyzes your SQL statements and generates alternatives for improving performance. It can test these alternatives to identify the best SQL statement for your database environment. Optimizing SQL consists of the following functions:
| Functions | Description |
|
Optimize SQL Statement |
SQL Optimizer uses an Artificial Intelligence engine to execute SQL syntax rules that produce semantically equivalent SQL statement alternatives. |
|
Test Run SQL Alternatives |
SQL Optimizer executes statement alternatives to view their execution statistics. This provides execution times for identifying the best SQL statement for your database environment. Test Run SQL Alternatives |
About SQL Optimizer
Quest SQL Optimizer for IBM DB2 z/OS ensures optimal SQL performance by generating alternatives and testing SQL for maximum application performance.
Optimize SQL
SQL Optimizer analyzes your SQL statements and generates alternatives for improving performance. It can test these alternatives to identify the best SQL statement for your database environment. Optimizing SQL consists of the following functions:
| Functions | Description |
|
Optimize SQL Statement |
SQL Optimizer uses an Artificial Intelligence engine to execute SQL syntax rules that produce semantically equivalent SQL statement alternatives. |
|
Test Run SQL Alternatives |
SQL Optimizer executes statement alternatives to view their execution statistics. This provides execution times for identifying the best SQL statement for your database environment. Test Run SQL Alternatives |
Connections
Note: This topic focuses on information that may be unfamiliar to you. It does not include all step and field descriptions.
To select a connection
- Select the SQL Details tab in the main window.
-
Click
-
Review the following for additional information:
Select Connection Description Connection
Click
to select a previously created connection.
Tip: Click
to open the Connection Manager to create a new connection. Connect to the Database
Select Schema and SQLID Description Schema
Click SQLID
Click
Connect to the Database
Note: This topic focuses on information that may be unfamiliar to you. It does not include all step and field descriptions.
To create a connection
- Click
.
-
Review the following for additional information:
Connection Manager Description Database alias
Select name of the database to which you want to connect.
User
Enter the user name required to connect to the database.
Password
Enter the password associated with the user name. Click Save password to remember the password. Connection Details Description Catalog node
Displays the local catalog node name. Database name Displays the local database name or DCS Alias. Subsystem Displays the name of the subsystem. System Displays system IP address and port number. Comment Displays comments. Installed Database Clients Description Connect using
Select the appropriate database client or click - Click Connect or Close.
To display connection information about a z/OS database in Toad.
- Connect to a z/OS DB2 database.
- Open Editor, type: "-DIS DDF" and execute.
Note: Consult the IBM DB2 documentation for more information on z/OS DB2 databases.
Note: If you use a non-administrator windows account to run SQL Optimizer for IBM DB2 z/OS, the login account must belong to the "DB2ADMIN" or "DB2USER" user group. You may also need to add "DB2ADMIN" or "DB2USER" if the user login belongs to the Administrator user group.