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SQL Optimizer for SAP ASE 3.9.1 - User Guide

Introduction Tutorials Preferences Editor Functions SQL Information and Functions Performance Monitor SQL Inspector SQL Collector for Monitor Server SQL Scanner Index Advisor SQL Optimizer
SQL Optimizer Overview Optimization Engine Common Coding Errors in SQL Statements What Function Should l Use to Retrieve the Run Time? Unsatisfactory Performance Results SQL Optimizer Functions SQL Editor Optimized SQL Activity Log
SQL Worksheet SQL Formatter Database Explorer Code Finder Object Extractor SQL Repository Index Impact Analyzer Index Usage Analyzer Configuration Analyzer Migration Analyzer Abstract Plan Manager User-Defined Temp Tables SQL History Legal Information

Information Tab

The Information tab on the Preferences window for the Performance Monitor determines which of the top SQL statements are highlighted, sets highlighting colors, and sets the automatic display of the connection information when logging on.

SQL statement

In the left pane of the Performance Monitor window, individual SQL statements are displayed when you drill down from Information to Process Information to the Executing SQL Statements. The following settings determine how many SQL statements are highlighted, by what criteria they are sorted, and the color that is used for highlighting.

Highlight Top N SQL Statements (Default = checked)

The top SQL statements are highlighted for you to quickly identify which SQL statements are consuming the most resources.

Top-N (Default = 10)

Specify the number of SQL statements to be highlighted.

Order By (Default = CPU Time(ms))

Select the statistic to sort the SQL statements from the drop-down field.

Highlight Color (Default = Yellow)

Select the color from the drop-down field.

Highlight selected column

When you drill down to the lowest level of the charts, the data from the table displays in a grid underneath the chart. The column for the statistic that is selected in the left pane is highlighted.

Highlight Color (Default = Sky Blue)

Select the color from the drop-down field.

SQL Filter (executing SQL only)

Ignore SQL executed from SQL Optimizer Default = checked)

Specify to exclude the SQL statements that are generated by any of the modules in SQL Optimizer but the Performance Monitor.

Ignore SQL executed from Performance Monitor (Default = checked)

Specify to exclude the SQL statements that are generated by the Performance Monitor.

Display Connection Information window only when insufficient privileges (Default = checked)

Specify to display the Connection Information window each time you logon if the user logon does not have the database privileges needed for the modules.

 

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Top-N Display Tab

The Top-N Display tab on the Preferences window for the Performance Monitor is for determining the percent of each statistics that is retrieved from the monitoring tables.

To select only the top statistics

Select the button on the left for the statistics information and fill in the values on the right for each individual statistic.

Please reference the Adaptive Server Performance and Tuning: Monitor and Analyzing manual for the meaning of each statistic.

 

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Editor Functions

Syntax Highlight

Syntax highlighting changes the colors and attributes of the text in the SQL statement display panes, making it easier to quickly identify parts of the code. The text colors and attributes for syntax highlights are defined within the Preferences window.

To change display attributes of the SQL text

  1. Click Preferences image\B_Preferences.gif

  2. Select the Editor tab.

  3. Under the Editing section, the Syntax highlight checkbox is used to apply the syntax highlight to the code. By default this option is selected.

  4. To modify the colors and attributes, click the corresponding image\B_Ellipse.gif button to open the Syntax Highlight Settings window.

Element options

Elements

It is possible to define the font format and color for the following elements:

Element Description

Reserved Word

Adaptive Server SQL reserved words.

For example: ADD, ALL, ALTER, AND, ANY, AS, ASC, BACKUP, BEGIN

Function

Adaptive Server build-in functions.

For example: ABS, ACOS, ASCII, ASIN, ATAN, ATAN2, CEILING, CHARINDEX

Comment

Comment delimiters ( -- ).

Identifier

Any text that does not fall in the above categories.

Quoted Identifier

Database object identifier within quotes.

String

Text enclosed in single quotes ( ' ' ).

Number

Numbers 0 to 9 and floating point.

Symbol

Symbols.

For example: !, %, ^, &, *, (, ), -, =, +, {, }, ;, ~, <, >, ,, ., /, <=, >=

Data Type

Adaptive Server data type.

For example: BIT, INT, SMALLINT, DEC, CHAR, VARCHAR, BINARY

Global Variable

@@variable accessed by a any program block.

Local Variable

@variable accessed by a single program block.

Temporary Table

User-Defined Temporary Tables created for the current session.

System Procedure

Procedures from the System catalog.

Invalid object

Unrecognized database object under the current database and user.

Force

Optimizer hints that influence choices of the SQL Server optimizer.

Difference highlight

The differences between two SQL for the SQL Comparer window.

Text Selection

Text selection highlighting.

Member Lookup

Member lookup field.

Argument Lookup

Argument lookup field.

Foreground color

Specify the foreground color of the selected element; use the drop-down list or image\B_Ellipse.gif to select the desired color. Select the Use default foreground color checkbox to use the Windows default text color.

Background color

Specify the background color of the selected element; use the drop-down list or click image\B_Ellipse.gif to select the desired color. Select the Use default background color checkbox to use the Windows default background color. By default, this checkbox is selected for all elements.

Editor options

Specify the font style and size of all editable panes.

Reset Default button

Reset the default settings for syntax highlight for all settings.

To change the color and attribute of a particular element

  1. Select the syntax name from the Element option list-box or select the text from the Preview section and change the attributes accordingly.

  2. Changes are reflected on the Preview section, click Apply to implement the changes.

 

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