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 …

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 …

Oct 3, 2025 · The CHECK constraint in SQL enforces rules on column values by limiting the data that can be inserted or updated. It ensures that values meet specified conditions.

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

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 …

In SQL Server, a check constraint is used to specify the limitation on the values of a column when inserting or updating.

Oct 15, 2021 · This article will show details about SQL check constraints and the relationship between constraints and query performance.

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 …