To use a table comparison to generate value and outer value tests for a table pair, you must specify the primary keys for both tables. If a relational table has a composite primary key or if a flat file does not have a column header, you can create a primary key file that specifies the primary key for the relational table or flat file.
In the Data Validation Client, you can select one column as the primary key for each table in a table pair. If the primary key of a relational data source is a composite primary key, you must create a primary key file that specifies all columns that comprise the primary key.
If a flat file does not contain column headers, then you must create a primary key file that specifies the column that is the primary key for the flat file. If the primary key is a composite key, then you can specify all columns that comprise the primary key.
The file must contain the name of the flat file or table and the primary key separated by comma.
To specify multiple columns of a composite primary key, enter each column on a new line.