Declaring Data Types for Passed Parameters

A stored procedure must declare each parameter passed to it. In addition, the DATA TYPE declared in the declaration must be valid for the data source being used and must use a compatible host variable data type when calling the stored procedure. For more information on data types, see the chapter SQL Data Types earlier in this book.

For example:

CREATE PROCEDURE GETEMPSVR
 (IN  EMPNO CHAR(6),
  INOUT SQLCD    INT ,
  OUT FIRSTNME CHAR(12),
  OUT LASTNAME CHAR(12),
  OUT HIREDATE CHAR(10),
  OUT SALARY   DEC(9,2) )
  LANGUAGE COBOL
  EXTERNAL NAME 'GETEMPSVR!GETEMPSVR'
  PARAMETER STYLE DB2SQL;