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SQL Optimizer for DB2 LUW 4.4 - Installation Guide

General (SQL Scanner Tab)

ClosedView SQL Scanner tab – General button options

The General page on the SQL Scanner tab of the Options window allows you to specify your options for the graphical interface and the Checked SQL feature in the SQL Scanner.

Interface

Interface Settings

Description

Use color tabs for SQL classification

When checked, the SQL statements are displayed with color-coded tabs representing the SQL’s classification. Red for Problematic, purple for Complex, green for Simple, and blue for Invalid. If the SQL statement is checked, the tab is gray.

Show checked SQL figures on the Job Manager window

When checked, an additional column of numbers is added to the SQL classification columns to indicate how many SQL statements have been checked for each Job. When a SQL statement is added to the Checked SQL list, it has a value in the appropriate SQL classification column in the Job Manager window.

Checked List

Checked List Settings

Description

Action when performing Send to SQL Optimizer or Send to Index Expert

Prompt user for action

If selected, you are prompted to be added to the Checked List.

Always add SQL

If selected, all SQL sent to the SQL Optimizer is added to the Checked List.

Never add SQL (default)

If selected, all SQL sent to the SQL Optimizer is not automatically added to the Checked List.

Do not remove Check SQL information when rescanning

Specify to keep the checked SQL information when the Job is rescanned. If unchecked, the checked SQL information is removed when the Job is scanned again.

Compare the current SQL with the rescanned SQL using

SQL text

Specify to match the SQL statements from the previous time the Job was scanned with the current scanning using only the SQL text as a comparison for the match. The checked SQL information is preserved for those SQL statements where the SQL text matches.

SQL text and access plan

Specify to match the SQL statements from the previous time the Job was scanned with the current scanning using the SQL text and the access plan as a comparison for the match. The checked SQL information is only preserved for those SQL statements where the access plan and the SQL text match.

 

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