- PostgreSQL - Home
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- PostgreSQL - SELECT
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- PostgreSQL - LIMIT Clause
- PostgreSQL - LIKE Clause
- PostgreSQL - WITH Clause
- PostgreSQL - AND & OR Clauses
- PostgreSQL - DROP TABLE
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- TRUNCATE TABLE Command
- PostgreSQL JOINS & Schemas
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- PostgreSQL Data Integrity & Transaction
- PostgreSQL - Constraints
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- PostgreSQL - ALIAS Syntax
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- PostgreSQL - Array Function
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- PostgreSQL - UNION Operator
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- Advanced PostgreSQL
- PostgreSQL - NULL Values
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- PostgreSQL - Locks
- PostgreSQL - Sub Queries
- PostgreSQL - Auto Increment
- PostgreSQL - Privileges
- PostgreSQL - Date/Time Functions & Operators
- PostgreSQL - Errors & Messages
- PostgreSQL - Assert
Quiz on PostgreSQL Constraints Overview
1. What is the purpose of constraints in PostgreSQL?
2. Which of the following is NOT a type of constraint in PostgreSQL?
3. What does a UNIQUE constraint do?
4. Which constraint is used to link two tables together?
5. What is the effect of a CHECK constraint?
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