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A new record is one whose values in the attributes that make the primary key are absent from all other records' primary keys in the table.

Note: Reading the "GeneXus and Relational Databases: the Essence" paper by Breogán Gonda & Nicolás Jodal is highly recommended. Also, for those who want to learn or refresh knowledge of relational databases (primary key, foreign keys, indexes, referential integrity, etc.) a little distance course "Fundamentals of Relational Databases" is available at the GXtechnical download center.


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