Item Descriptor

Use the Item Descriptor portion of the SET DESCRIPTOR statement to set value for an individual field in a system-descriptor area.


Item Descriptor

|--+-+-TYPE------+-- = -+-literal_int_var-+-------------+-------|
   | +-LENGTH----+      '-literal_int-----'             |   
   | +-PRECISION-+                                      |   
   | +-SCALE-----+                                      |   
   | +-NULLABLE--+                                      |   
   | +-INDICATOR-+                                      |   
   | +-ITYPE-----+                                      |   
   | '-ILENGTH---'                                      |   
   |                                     (1)            |   
   +-+-DATA--+-- = -+-| Literal Number |-------+--------+   
   | '-IDATA-'      |                      (2) |        |   
   |                +-| Literal DATETIME |-----+        |   
   |                |                      (3) |        |   
   |                +-| Literal INTERVAL |-----+        |   
   |                |                   (4)    |        |   
   |                +-| Quoted String |--------+        |   
   |                '-input_var----------------'        |   
   |                                              (4)   |   
   +-+-NAME------------+-- = -+-| Quoted String |-----+-+   
   | +-EXTYPENAME------+      '-input_var-------------' |   
   | '-EXTYPEOWNERNAME-'                                |   
   '-+-SOURCEID----------+-- = -+-literal_int_var-+-----'   
     +-SOURCETYPE--------+      '-literal_int-----'         
     +-EXTYPEID----------+                                  
     +-EXTYPELENGTH------+                                  
     '-EXTYPEOWNERLENGTH-'

Notes:

Element	Description	Restrictions	Syntax
input_var	Host variable storing data for the specified item descriptor field	Must be appropriate for the specified field	Language-specific
literal_int	Integer value ( > 0 ) assigned to the specified item descriptor field	Restrictions depend on the keyword to the left of = symbol	Literal Number
literal_int_var	Variable having literal_int value	Same as for literal_int	Language-specific

For information on codes that are valid for the TYPE or ITYPE fields and their meanings, see Setting the TYPE or ITYPE Field.

For the restrictions that apply to other field types, see the individual headings for field types under Using the VALUE Clause.