An SQL check constraint is used and designed in the schema of a database table to restrict the range of values that can be entered into a specific field. In many experienced, they are very rarely used. However, these simple checks, entered at the time of database table creation, can provide additional safe guards against [...]
02
/08
2010
Category
Tags
- check constraints
- database schema
- database validation
- databases
- MySQL
- Programming
- SQL
- SQL Check Constraints