-20475 A COLUMN MASK IS ALREADY DEFINED FOR THE COLUMN column-name IN TABLE table-name (EXISTING MASK NAME mask-name)
Explanation
An attempt was made to define a mask on a column, but a mask already exists on the column. Only one mask can be defined for a column.
- column-name
- The name of the column.
- table-name
- The name of the table.
- mask-name
- The name of the column mask that already exists.
System action
The statement cannot be processed.
Programmer response
To create the new mask, drop the existing mask, then reissue the statement.
SQLSTATE
428HC
