GET TRANSACTION DATA

GET TRANSACTION [DATA]  operand1

This document covers the following topics:

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

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

Belongs to Function Group: Database Access and Update

Function

The GET TRANSACTION DATA statement is used to read the data saved with a previous END TRANSACTION statement.

GET TRANSACTION DATA does not create a processing loop.

Note:
For DL/I: The GET TRANSACTION DATA statement retrieves checkpoint data saved by an END TRANSACTION statement.

System Variable *ETID

The content of the Natural system variable *ETID identifies the transaction data to be retrieved from the database.

No Transaction Data Stored

If the GET TRANSACTION DATA statement is issued and no transaction data are found, all fields specified in the GET TRANSACTION DATA statement will be filled with blanks regardless of format definition.

Warning:
Make sure that arithmetic operations are not performed on "empty" transaction data, because this would result in an abnormal termination of the program.

Restriction

The GET TRANSACTION DATA statement is only valid for transactions applied to Adabas databases, or to DL/I databases in a batch-oriented BMP region (in IMS TM environments only).

Syntax Description

Operand Definition Table:

Operand Possible Structure Possible Formats Referencing Permitted Dynamic Definition
operand1   S       A U N P I F B D T         yes yes

Syntax Element Description:

Syntax Element Description
operand1
Field Specification:

The sequence, lengths, and formats of the fields used in the GET TRANSACTION DATA statement must be identical to the sequence, lengths, and formats of the fields specified with the corresponding END TRANSACTION statement.

Notes:

  1. For DL/I: The first operand1 must be an 8-byte checkpoint ID.
  2. GET TRANSACTION DATA cannot be used if operand1 is a dynamic variable.

Example

** Example 'GTREX1': GET TRANSACTION                                    
**                                                                      
** CAUTION: Executing this example will modify the database records!    
************************************************************************
DEFINE DATA LOCAL                                                       
1 EMPLOY-VIEW VIEW OF EMPLOYEES                                         
  2 PERSONNEL-ID                                                        
  2 NAME                                                                
  2 FIRST-NAME                                                          
  2 MIDDLE-I                                                            
  2 CITY                                                                
*                                                                       
1 #PERS-NR (A8) INIT <' '>                                              
END-DEFINE                                                              
*                                                                       
GET TRANSACTION DATA #PERS-NR                                           
IF #PERS-NR NE ' '                                                      
  WRITE 'LAST TRANSACTION PROCESSED FROM PREVIOUS SESSION' #PERS-NR     
END-IF                                                                  
*                                                            
REPEAT                                                       
  /*                                                         
  INPUT  10X 'ENTER PERSONNEL NUMBER TO BE UPDATED:' #PERS-NR
  IF #PERS-NR = ' '                                          
    STOP                                                     
  END-IF                                                     
  /*                                                         
  FIND EMPLOY-VIEW WITH PERSONNEL-ID = #PERS-NR              
    IF NO RECORDS FOUND                                      
      REINPUT 'NO RECORD FOUND'                              
    END-NOREC                                                
    INPUT (AD=M) PERSONNEL-ID (AD=O)                         
               / NAME                                        
               / FIRST-NAME                                  
               / CITY                                        
    UPDATE                                                   
    END TRANSACTION #PERS-NR                                 
  END-FIND                                                   
  /*      
END-REPEAT
END