ALTER

The ALTER statement allows to modify a resource.

General format

EXEC SQL [AT Database]     ALTER Options   END-EXEC

Syntax rules

1.	Options is passed to the driver without further checks. Refer to the database documentation for detailed syntax. Syntax errors, if any, are returned at runtime.

General Rules

1.	Database identifies the active connection that will execute the query and must be previously defined using a Format 4 DECLARE statement.

Examples

Alter a table to add its primary key

exec sql     alter table customers add primary key (cust_code) end-exec