Natural for OpenVMS Version 6.3.12 for OpenVMS
 —  Statements  —

ACCEPT/REJECT

ACCEPT

[IF] logical-condition
REJECT

This document covers the following topics:

For an explanation of the symbols used in the syntax diagram, see Syntax Symbols.

Related Statements: AT BREAK | AT START OF DATA | AT END OF DATA | BACKOUT TRANSACTION | BEFORE BREAK PROCESSING | DELETE | END TRANSACTION | FIND | HISTOGRAM | GET | GET SAME | GET TRANSACTION DATA | LIMIT | PASSW | PERFORM BREAK PROCESSING | READ | RETRY | STORE | UPDATE

Belongs to Function Group: Database Access and Update


Function

The statements ACCEPT and REJECT are used for accepting/rejecting a record based on user-specified logical criterion. The ACCEPT/REJECT statement may be used in conjunction with statements which read data records in a processing loop (FIND, READ, HISTOGRAM, CALL FILE, SORT or READ WORK FILE). The criterion is evaluated after the record has been selected/read.

Whenever an ACCEPT/REJECT statement is encountered for processing, it will internally refer to the innermost currently active processing loop initiated with one of the above mentioned statements.

When ACCEPT/REJECT statements are placed in a subroutine, in case of a record reject, the subroutine(s) entered in the processing loop will automatically be terminated and processing will continue with the next record of the innermost currently active processing loop.

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Syntax Description

Syntax Element Description
IF
IF Clause:
An IF clause may be used with an ACCEPT or REJECT statement to specify logical condition criteria in addition to that specified when the record was selected/read with a FIND, READ, or HISTOGRAM statement. The logical condition criteria are evaluated after the record has been read and after record processing has started.
logical-condition
Logical Condition Criterion:
The basic criterion is a relational expression. Multiple relational expressions may be combined with logical operators (AND, OR) to form complex criteria.

Arithmetic expressions may also be used to form a relational expression.

The fields used to specify the logical criterion may be database fields or user-defined variables. For additional information on logical conditions, see Logical Condition Criteria in the Programming Guide.

Note:
When ACCEPT/REJECT is used with a HISTOGRAM statement, only the database field specified in the HISTOGRAM statement may be used as a logical criterion.

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Processing of Multiple ACCEPT/REJECT Statements

Normally, only one ACCEPT or REJECT statement is required in a single processing loop. If more than one ACCEPT/REJECT is specified consecutively, the following conditions apply:

If other statements are interleaved between multiple ACCEPT/REJECT statements, each ACCEPT/REJECT will be handled independently.

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Limit Notation

If a LIMIT statement or other limit notation has been specified for a processing loop containing an ACCEPT or REJECT statement, each record processed is counted against the limit regardless of whether or not the record is accepted or rejected.

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Examples

Example 1 - ACCEPT

** Example 'ACREX1': ACCEPT
************************************************************************
DEFINE DATA LOCAL
1 EMPLOY-VIEW VIEW OF EMPLOYEES
  2 NAME
  2 SEX
  2 MAR-STAT
END-DEFINE
*
LIMIT 50
READ EMPLOY-VIEW
  ACCEPT IF SEX='M' AND MAR-STAT = 'S'
  WRITE  NOTITLE '=' NAME '=' SEX 5X '=' MAR-STAT
END-READ
END

Output of Program ACREX1:

NAME: MORENO               S E X: M     MARITAL STATUS: S
NAME: VAUZELLE             S E X: M     MARITAL STATUS: S
NAME: BAILLET              S E X: M     MARITAL STATUS: S
NAME: HEURTEBISE           S E X: M     MARITAL STATUS: S
NAME: LION                 S E X: M     MARITAL STATUS: S
NAME: DEZELUS              S E X: M     MARITAL STATUS: S
NAME: BOYER                S E X: M     MARITAL STATUS: S
NAME: BROUSSE              S E X: M     MARITAL STATUS: S
NAME: DROMARD              S E X: M     MARITAL STATUS: S
NAME: DUC                  S E X: M     MARITAL STATUS: S
NAME: BEGUERIE             S E X: M     MARITAL STATUS: S
NAME: FOREST               S E X: M     MARITAL STATUS: S
NAME: GEORGES              S E X: M     MARITAL STATUS: S

Example 2 - ACCEPT / REJECT

** Example 'ACREX2': ACCEPT/REJECT                                      
************************************************************************
DEFINE DATA LOCAL                                                       
1 EMPLOY-VIEW VIEW OF EMPLOYEES                                         
  2 NAME                                                                
  2 FIRST-NAME                                                          
  2 SALARY    (1)                                                       
*                                                                       
1 #PROC-COUNT (N8) INIT <0>                                             
END-DEFINE                                                              
*                                                                       
EMP. FIND EMPLOY-VIEW WITH NAME = 'JACKSON'                             
  WRITE NOTITLE *COUNTER NAME FIRST-NAME 'SALARY:' SALARY(1)            
  /*                                                                    
  ACCEPT IF SALARY (1) LT 50000                                         
  WRITE *COUNTER 'ACCEPTED FOR FURTHER PROCESSING'                      
  /*                                                                    
  REJECT IF SALARY (1) GT 30000                                         
  WRITE *COUNTER 'NOT REJECTED'                                         
  /*                                                   
  ADD 1 TO #PROC-COUNT                                 
END-FIND                                               
*                                                      
SKIP 2                                                 
WRITE NOTITLE 'TOTAL PERSONS FOUND ' *NUMBER (EMP.) /
              'TOTAL PERSONS SELECTED' #PROC-COUNT     
END 

Output of Program ACREX2:

          1 JACKSON              CLAUDE               SALARY:      33000
          1 ACCEPTED FOR FURTHER PROCESSING                             
          2 JACKSON              FORTUNA              SALARY:      36000
          2 ACCEPTED FOR FURTHER PROCESSING                             
          3 JACKSON              CHARLIE              SALARY:      23000
          3 ACCEPTED FOR FURTHER PROCESSING                             
          3 NOT REJECTED                                                
                                                                        
                                                                        
TOTAL PERSONS FOUND            3                                        
TOTAL PERSONS SELECTED         1                                       

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