ABAP Select data from SAP table VT8JQ 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 VT8JQ 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 VT8JQ. 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 VT8JQ 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_VT8JQ TYPE STANDARD TABLE OF VT8JQ,
      WA_VT8JQ TYPE VT8JQ,
      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: <VT8JQ> TYPE VT8JQ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VT8JQ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VT8JQ
  INTO TABLE IT_VT8JQ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VT8JQ
*  INTO TABLE @DATA(IT_VT8JQ2).
*--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_VT8JQ INDEX 1 INTO DATA(WA_VT8JQ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VT8JQ ASSIGNING <VT8JQ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VT8JQ>-MANDT = 1.
<VT8JQ>-BUKRS = 1.
<VT8JQ>-VNAME = 1.
<VT8JQ>-EGRUP = 1.
<VT8JQ>-PARTN = 1.

ENDLOOP.

LOOP AT IT_VT8JQ INTO WA_VT8JQ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VT8JQ-EQSHARE, sy-vline,
  WA_VT8JQ-OWNSUSP, sy-vline,
  WA_VT8JQ-OWNSUSPER, sy-vline,
  WA_VT8JQ-OWNSUSYEAR, sy-vline,
  WA_VT8JQ-OWNUNSUS, sy-vline,
  WA_VT8JQ-OWNUSUSPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VT8JQ 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_VT8JQ 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_VT8JQ INTO WA_VT8JQ.


*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 ALPHA, internal->external for field VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VT8JQ-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT8JQ-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EGRUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VT8JQ-EGRUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT8JQ-EGRUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VT8JQ-PARTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT8JQ-PARTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field OWNSUSYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VT8JQ-OWNSUSYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT8JQ-OWNSUSYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field OWNUSUSYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VT8JQ-OWNUSUSYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT8JQ-OWNUSUSYR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CIOUTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VT8JQ-CIOUTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VT8JQ-CIOUTYEAR.
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_VT8JQ_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
VNAME TYPE STRING,
EGRUP TYPE STRING,
PARTN TYPE STRING,
EQSHARE TYPE STRING,
OWNSUSP TYPE STRING,
OWNSUSPER TYPE STRING,
OWNSUSYEAR TYPE STRING,
OWNUNSUS TYPE STRING,
OWNUSUSPER TYPE STRING,
OWNUSUSYR TYPE STRING,
INTTYPE TYPE STRING,
DRILLRECPC TYPE STRING,
OPERRECPC TYPE STRING,
STOPPAY TYPE STRING,
CIOUTPER TYPE STRING,
CIOUTYEAR TYPE STRING,
CIGROUP TYPE STRING,
NPIGROUP TYPE STRING,
REGIO TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VT8JQ_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_VT8JQ_STR-MANDT sy-vline 
WA_VT8JQ_STR-BUKRS sy-vline 
WA_VT8JQ_STR-VNAME sy-vline 
WA_VT8JQ_STR-EGRUP sy-vline 
WA_VT8JQ_STR-PARTN sy-vline 
WA_VT8JQ_STR-EQSHARE sy-vline 
WA_VT8JQ_STR-OWNSUSP sy-vline 
WA_VT8JQ_STR-OWNSUSPER sy-vline 
WA_VT8JQ_STR-OWNSUSYEAR sy-vline 
WA_VT8JQ_STR-OWNUNSUS sy-vline 
WA_VT8JQ_STR-OWNUSUSPER sy-vline 
WA_VT8JQ_STR-OWNUSUSYR sy-vline 
WA_VT8JQ_STR-INTTYPE sy-vline 
WA_VT8JQ_STR-DRILLRECPC sy-vline 
WA_VT8JQ_STR-OPERRECPC sy-vline 
WA_VT8JQ_STR-STOPPAY sy-vline 
WA_VT8JQ_STR-CIOUTPER sy-vline 
WA_VT8JQ_STR-CIOUTYEAR sy-vline 
WA_VT8JQ_STR-CIGROUP sy-vline 
WA_VT8JQ_STR-NPIGROUP sy-vline 
WA_VT8JQ_STR-REGIO sy-vline 
WA_VT8JQ_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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