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Usage Notes

Parameters

Syntax Rules

Usage Notes

Example

CDD/Plus Dictionary Data Definition Language Utility JUSTIFIED_RIGHT — VMS CDD+_4.1A

 The JUSTIFIED_RIGHT field attribute truncates  or  fills  a  TEXT  or
 UNSPECIFIED field from the left instead of from the right.

Additional information available:

Usage NotesParametersSyntax RulesUsage NotesExample

Usage Notes

  o  Only VAX  COBOL  supports  the  JUSTIFIED  RIGHT  clause.   Other
     language processors ignore it.

  o  Use this clause only  on  fields  whose  data  type  is  TEXT  or
     UNSPECIFIED.

 1 MISSING_VALUE

 The  MISSING_VALUE  field  attribute  clause  specifies  a  value  to
 indicate that a field has never been assigned a meaningful value.

Parameters

 fixed-point-number

 quoted-string

      The VAX DATATRIEVE missing value.

Syntax Rules

  o  The quoted string or fixed point  number  must  be  a  valid  VAX
     DATATRIEVE  expression for the field.  The CDDL compiler does not
     check for correct syntax.

  o  You can use 8-bit characters in CDDL quoted strings.


Usage Notes

  o  Only VAX DATATRIEVE supports  the  MISSING_VALUE  clause.   Other
     language processors ignore it.

  o  VAX DATATRIEVE treats a field containing  a  MISSING_VALUE  as  a
     special   case;   for  example,  VAX  DATATRIEVE  ignores  fields
     containing  a  MISSING_VALUE   when   it   performs   statistical
     operations.


Example

 The following example assigns a missing  value  of  0  to  the  field
 PRICE.   A  PRICE of 0 indicates to VAX DATATRIEVE that the value for
 PRICE is missing; VAX DATATRIEVE ignores records with PRICE equal  to
 0 when it performs operations involving the PRICE field.

 PRICE                       DATATYPE IS UNSIGNED NUMERIC
                             SIZE IS 8 DIGITS 2 FRACTIONS
                             MISSING_VALUE FOR DATATRIEVE IS 0.

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