For example, you can create a check constraint that limits the values of a numeric column to a certain range, ... You can modify or drop a check constraint in SQL using the ALTER TABLE statement.

is the name for the constraint being specified. The first form of the CREATE TABLE statement creates tables that automatically map SQL data types to those supported by the SAS System. Use this form ...

MySQL, the most popular Open Source SQL database management system, is developed, distributed, and supported by Oracle Corporation. A database is a structured collection of data. It may be anything ...

How to Create a Table From Query Results in Microsoft SQL. If your business uses relational databases to store data, you may have used a SQL SELECT clause to create new tables from query results.

A constraint is similar to an index, although it can also be used to establish a relationship with another table. You use the CONSTRAINT clause in ALTER TABLE and CREATE TABLE statements to create or ...