The CHECK constraint is used to limit the value range that can be placed in a column. If you define a CHECK constraint on a column it will allow only certain values for this column.

Nov 18, 2025 · Learn how to can create a check constraint in a table to specify the data values that are acceptable in one or more columns in the SQL Server Database Engine.

In SQL, a check constraint ensures data in one or more columns within a table meet a specific condition. The CHECK constraints help you maintain data accuracy by limiting the value …

Learn how to implement SQL CHECK constraints in your database to enforce data integrity. This guide covers creating, modifying, and troubleshooting constraints, with insights on using …

The CHECK constraint in SQL is used to specify the condition that must be satisfied in order to insert data into a table. In this tutorial, you will learn about the CHECK constraint in SQL with …

This tutorial shows you how to use the SQL Server CHECK constraint to limit the values that can be inserted or updated into one or more columns in a table

May 1, 2025 · The INFORMATION_SCHEMA.CHECK_CONSTRAINTS view allows you to get information about the check constraints that are setup in your database. A check constraint is …

Dec 16, 2024 · What Is a CHECK Constraint in SQL? In SQL, a CHECK constraint is a rule applied to a column or a set of columns in a table to enforce data integrity. It ensures that all …

A check constraint is a type of constraint that is used in SQL to ensure that a specified condition is met before data is added or modified in a table. Check constraints are used to enforce …

What Is a Check Constraint? A check constraint in SQL is a rule that enforces a specific condition on the values in a column or set of columns in a table. It ensures that every row satisfies the …