ABAP Select data from SAP table VZPARJG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP VZPARJG table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to VZPARJG. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the VZPARJG table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_VZPARJG TYPE STANDARD TABLE OF VZPARJG,
      WA_VZPARJG TYPE VZPARJG,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <VZPARJG> TYPE VZPARJG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VZPARJG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VZPARJG
  INTO TABLE IT_VZPARJG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VZPARJG
*  INTO TABLE @DATA(IT_VZPARJG2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_VZPARJG INDEX 1 INTO DATA(WA_VZPARJG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VZPARJG ASSIGNING <VZPARJG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VZPARJG>-MANDT = 1.
<VZPARJG>-PARTNR = 1.
<VZPARJG>-VBJAHR = 1.
<VZPARJG>-DGJBEG = 1.
<VZPARJG>-DGJENDE = 1.

ENDLOOP.

LOOP AT IT_VZPARJG INTO WA_VZPARJG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VZPARJG-DHPTVERS, sy-vline,
  WA_VZPARJG-KZABSCHL, sy-vline,
  WA_VZPARJG-BGRDKAP, sy-vline,
  WA_VZPARJG-BAKTKAP, sy-vline,
  WA_VZPARJG-BGENKAP, sy-vline,
  WA_VZPARJG-BEIGKAP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VZPARJG you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_VZPARJG TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_VZPARJG INTO WA_VZPARJG.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit GJAHR, internal->external for field VBJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VZPARJG-VBJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VZPARJG-VBJAHR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_VZPARJG_STR, 
MANDT TYPE STRING,
PARTNR TYPE STRING,
VBJAHR TYPE STRING,
DGJBEG TYPE STRING,
DGJENDE TYPE STRING,
DHPTVERS TYPE STRING,
KZABSCHL TYPE STRING,
BGRDKAP TYPE STRING,
BAKTKAP TYPE STRING,
BGENKAP TYPE STRING,
BEIGKAP TYPE STRING,
BBRUTBEI TYPE STRING,
BNETBEI TYPE STRING,
BUMSATZ TYPE STRING,
BJUENST TYPE STRING,
BDIVID TYPE STRING,
BBILANZ TYPE STRING,
PSCHULD TYPE STRING,
BGEWINN TYPE STRING,
DJAKN TYPE STRING,
DJAKNE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VZPARJG_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_VZPARJG_STR-MANDT sy-vline 
WA_VZPARJG_STR-PARTNR sy-vline 
WA_VZPARJG_STR-VBJAHR sy-vline 
WA_VZPARJG_STR-DGJBEG sy-vline 
WA_VZPARJG_STR-DGJENDE sy-vline 
WA_VZPARJG_STR-DHPTVERS sy-vline 
WA_VZPARJG_STR-KZABSCHL sy-vline 
WA_VZPARJG_STR-BGRDKAP sy-vline 
WA_VZPARJG_STR-BAKTKAP sy-vline 
WA_VZPARJG_STR-BGENKAP sy-vline 
WA_VZPARJG_STR-BEIGKAP sy-vline 
WA_VZPARJG_STR-BBRUTBEI sy-vline 
WA_VZPARJG_STR-BNETBEI sy-vline 
WA_VZPARJG_STR-BUMSATZ sy-vline 
WA_VZPARJG_STR-BJUENST sy-vline 
WA_VZPARJG_STR-BDIVID sy-vline 
WA_VZPARJG_STR-BBILANZ sy-vline 
WA_VZPARJG_STR-PSCHULD sy-vline 
WA_VZPARJG_STR-BGEWINN sy-vline 
WA_VZPARJG_STR-DJAKN sy-vline 
WA_VZPARJG_STR-DJAKNE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.