Add table aliases

Columns used in an expression must have a 3-character table alias.

1. In the Define Table Alias tab, select the table from the drop-down list.
2. Enter the alias. The alias cannot be longer than three characters.
3. If you need an additional alias, click the Add Table Alias icon.

   Tip:

   If you modify an alias later, any expressions or criteria that refer to the old alias are updated during the Save operation. If an expression or criteria already saved refers to a deleted alias, update it manually. To work with the expression or criteria before saving, update it manually.

Next: Specify validation check criteria.