Specifies the check condition for the constraint that you are defining. Type the condition in the box.
Check constraints are not checked for inconsistencies, duplicate conditions, or equivalent conditions. Therefore, contradictory or redundant check constraints may result in errors at execution time.
Optional: Type a name for the check constraint that you are defining. This name can contain up to 128 characters and be an ordinary or delimited identifier
If you do not specify a constraint name, one is generated for you.
Optional: Type a comment to document the check constraint that you are defining. You can type up to 254 characters, including embedded blanks.
Performs the actions that you have specified in this notebook or window.
Cancels any unsaved changes that you made and closes this notebook or window.
Processes your input and keeps the window or notebook open for additional actions.
Select to specify that the query optimizer can use the constraint to evaluate the access plans for queries that include the nickname.