In this article, you will learn what is the syntax for creating a check constraint in SQL and how to use it effectively. Top experts in this article Selected by the community from 7 contributions.

Sql constraintsa constraint is a rule or limitation that we place on the data in a database that we can put into a column(s). a constraint is part of the table. we can apply constraints when we create ...

Erfahren Sie, wie die Syntax zum Erstellen einer CHECK-Einschränkung in SQL lautet und wie Sie sie verwenden, um Ihre Daten zu überprüfen und Datenintegritätsregeln für Ihre Tabellen zu ...

Check constraints are easy to code because they are written using recognizable SQL syntax. The check constraint syntax consists of two components: a constraint name and a check condition. The ...

ALTER TABLE column_constraint specifies the properties of a PRIMARY KEY, FOREIGN KEY, UNIQUE, or CHECK constraint that is part of a new column definition added to a table. Is the name of the ...