Constraints in SQL | SQL Integrity Constraints | Types of Constraints in SQL | DBMS | Telugu
Автор: SB Tech Tuts
Загружено: 2022-03-28
Просмотров: 59673
Constraints : we use SQL constraints to specify the rules for the data in a table.
Constraints are used to limit which type of data must be stored in the database.
Different types of constraints:
1. NOT NULL
2. UNIQUE
3. Primary Key
4. Foreign Key
5. Check
6. Default
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Constraints in SQL | SQL Integrity Constraints | DBMS | Telugu
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