What does MySQL data integrity include?

　MySQL data integrity detailed explanation

Data integrity includes:

　 1. Entity integrity

　1) Primary key constraints

　2)Unique constraint

　3)Identity column

　 2.Domain integrity

　1)Data type constraint

2) Non-null constraint

　3)Default value constraint

　 3.Referential integrity

　Foreign key constraint

　 4. Custom integrity

1. Stored procedure

2. Trigger

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