workbench-en.a4

Creating Tables
Select an index by right clicking it. Doing this displays information about the index in the INDEX COLUMNS section.
To add an index, click the last row in the index list. Enter a name for the index and select the index type from the drop down list
box. Select the column or columns that you wish to index by checking the column name in the INDEX COLUMNS list. You can remove
a column from the index by removing the check mark from the appropriate column.
You can also specify the order of an index by choosing ASC or DESC under the Order column. Create an index prefix by specifying
a numeric value under the Length column. You cannot enter a prefix value for fields that have a data type that does not support
prefixing.
To drop an index, right click the row of the index you wish to delete and then select the DELETE SELECTED INDEXES menu option.
7.3.5. The Foreign Keys Tab
The Foreign Keys tab is organized in much the same fashion as the Indexes tab and adding or editing a foreign key is similar
to adding or editing an index.
To add a foreign key, click the last row in the Foreign Key Name list. Enter a name for the foreign key and select the column
or columns that you wish to index by checking the column name in the COLUMN list. You can remove a column from the index by
removing the check mark from the appropriate column.
Under FOREIGN KEY OPTIONS choose an action for the update and delete events.
The options are:
• RESTRICT
• CASCADE
• SET NULL
• NO ACTION
To drop a foreign key, right click the row you wish to delete and then select the DELETE SELECTED FKS menu option.
To modify any of the properties of a foreign key, simply select it and make the desired changes.
7.3.6. The Triggers Tab
The Triggers tab opens a text area for editing an existing trigger or creating a new trigger. Create a trigger as you would from
the command line.
7.3.7. The Partitioning Tab
If you wish to enable partitioning for your table check the ENABLE PARTITIONING check box. Doing this enables the partitioning
options.
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