ALTER
The ALTER statement allows you 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. By default, when the AT clause is used, the active connection is switched to the connection identified by
Database and all the next statements will work on that connection; under the
-csora option, instead, the connection is switched only for the current statement.
Examples
Alter a table to add its primary key
exec sql alter table customers add primary key (cust_code) end-exec |