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 ...

Constraints are the rules enforced on data columns on table. These are used to limit the type of data that can go into a table. This ensures the accuracy and reliability of the data in the database.

Specifies whether the column can accept NULL values. Columns that do not allow NULL values can be added only if they have a default specified. If the new column allows NULL values and no default is ...

SQL Server 2000I need to change the collation for a database from case senstitive to case insensitive. ALTER DATABASE COLLATE SQL_Latin1_General_CI_AS When I try to so, I get a whole slew of ...

Constraints in sql are used to define rules for the table and columns in a database and also make sure that data are accurate and trusted in the database. constraints are responsible for the ...