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.

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 columns can store.

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.

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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 the help of …

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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 dbForge Studio for …

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.

Dec 16, 2024 · 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 values in one or more columns meet some specific …

The complete guide to SQL CHECK. Learn the syntax, parameters, use cases and find practical examples in the Hightouch SQL Dictionary.