HP 3000 Manuals

COBOL/HP-UX Language Reference for the Series 700 and 800

Undeclared Host Variables 

It is permissible to omit the statements:

     EXEC SQL BEGIN DECLARE SECTION END-EXEC

and:

     EXEC SQL END DECLARE SECTION END-EXEC

from your program.  The compiler automatically declares host variables to
the database system if they are used in a SQL statement and were not
previously declared.

The SQLDB2 directive must be specified in order to use this facility.
See your COBOL System Reference for details of compiler directives.

MPE/iX 5.0 Documentation