- A PRIMARY KEY
- B UNIQUE
- C FOREIGN KEY
- D INDEX
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IIntroduction to MySQL Databases
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RRelational database concepts
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SSQL and MySQL
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DData definition language - MySQL
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DData manipulation language - MySQL
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AAggregation functions - MySQL
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DData Constraints and Integrity - MySQL
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TTransactions and ACID properties - MySQL
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SStored functions and triggers - MySQL
MySQL Data Constraints and Integrity - MySQL
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Q: Which type of data constraint in MySQL ensures that a column's value references a valid primary key value in another table?
Data Constraints and Integrity - MySQL
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