A check constraint allows you to specify that the value in a certain column must satisfy a Boolean (truth-value) expression.
Note: Checks are supported from SQLite version 3.3.0 or later.
Checks are managed on the Checks tab of the Table Designer. Just simply click/double-click a check field for editing. Using the toolbar below, allowing you to create new, edit and delete the selected check field.
Add Check
To add a check
- Open the table in the Table Designer.
- Open the Checks tab.
- Right-click and select the
Add Check from the popup menu or click the
Add Check from the toolbar.
- Edit check properties.
Edit Check
To edit a check
- Open the table in the Table Designer.
- Open the Checks tab.
- Just simply click on the check to edit.
Delete Check
To delete a check
- Open the table in the Table Designer.
- Open the Checks tab.
- Right-click on the check to delete and select the
Delete Check from the popup menu or click the
Delete Check from the toolbar.
- Confirm deleting in the dialog window.
See also:
Setting Check Name and Expression