APEX04.SQL02: Use INSERT INTO statements to put data in tables. Errors: uniqueness and integrity
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This video explains the INSERT INTO command and illustrates two types of errors you might encounter. A “uniqueness” constraint will occur if the INSERT INTO command tries to enter the same primary value twice. This is also known as an entity integrity error. A “referential” error occurs when a record is inserted but a foreign key column has an invalid value.
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