Enter the prefix that is placed on the index name when the Index Advisor automatically generates index candidates.
The selectivity is calculated from the number of rows that are selected from the table. The number of rows selected is determined by the following settings:
This number is used as a percentage to calculate the number of rows in the table that are retrieved in the sample which determines the selectivity of the data. You see the number of row used in the sample in the Select tables window.
This is the minimum number of rows that are used in the sample which determines the selectivity of the data. This number is used if the calculation using the percentage of the table is below this value.
This is the maximum number of rows that are used in the sample which determines the selectivity of the data. This number is used if the calculation using the percentage of the table is above this value.
Specify the number of rows that a table must have before index candidates are generated for any columns in that table.
For SELECT SQL statements, specify whether the columns in the SELECT list are considered when generating the alternative indexes.
Specify the maximum number of columns that are placed in a composite index.
Specific the maximum number of indexes that the Index Advisor creates for each table in the SQL statement.
The Directory Setup tab of the Preferences window allows you to define the directory for saving and opening files used in the different modules.
Set up directories for the Activity Log, the SQL History, the SQL Scanner, the SQL Collector for Monitor Server, and SQL Inspector modules. Also, set-up the directory for opening and saving files in several modules.
Set up the directories for all the Analyzer modules and SQL Repository.