SET DESCRIPTOR

   SET DESCRIPTOR — set information in an SQL descriptor area

Synopsis

SET DESCRIPTOR descriptor_name descriptor_header_item = value [, ... ]
SET DESCRIPTOR descriptor_name VALUE number descriptor_item = value [, ...]

Description

   SET DESCRIPTOR populates an SQL descriptor area with values. The
   descriptor area is then typically used to bind parameters in a prepared
   query execution.

   This command has two forms: The first form applies to the descriptor
   “header”, which is independent of a particular datum. The second form
   assigns values to particular datums, identified by number.

Parameters

   descriptor_name #
          A descriptor name.

   descriptor_header_item #
          A token identifying which header information item to set. Only
          COUNT, to set the number of descriptor items, is currently
          supported.

   number #
          The number of the descriptor item to set. The count starts at 1.

   descriptor_item #
          A token identifying which item of information to set in the
          descriptor. See Section 34.7.1 for a list of supported items.

   value #
          A value to store into the descriptor item. This can be an SQL
          constant or a host variable.

Examples

EXEC SQL SET DESCRIPTOR indesc COUNT = 1;
EXEC SQL SET DESCRIPTOR indesc VALUE 1 DATA = 2;
EXEC SQL SET DESCRIPTOR indesc VALUE 1 DATA = :val1;
EXEC SQL SET DESCRIPTOR indesc VALUE 2 INDICATOR = :val1, DATA = 'some string';
EXEC SQL SET DESCRIPTOR indesc VALUE 2 INDICATOR = :val2null, DATA = :val2;

Compatibility

   SET DESCRIPTOR is specified in the SQL standard.

See Also

   ALLOCATE DESCRIPTOR, GET DESCRIPTOR