ABAP Select data from SAP table J_1GVL_WHB010 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1GVL_WHB010 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 J_1GVL_WHB010. 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 J_1GVL_WHB010 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_J_1GVL_WHB010 TYPE STANDARD TABLE OF J_1GVL_WHB010,
      WA_J_1GVL_WHB010 TYPE J_1GVL_WHB010,
      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: <J_1GVL_WHB010> TYPE J_1GVL_WHB010.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1GVL_WHB010.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1GVL_WHB010
  INTO TABLE IT_J_1GVL_WHB010.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1GVL_WHB010
*  INTO TABLE @DATA(IT_J_1GVL_WHB0102).
*--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_J_1GVL_WHB010 INDEX 1 INTO DATA(WA_J_1GVL_WHB0102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1GVL_WHB010 ASSIGNING <J_1GVL_WHB010>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1GVL_WHB010>-MANDT = 1.
<J_1GVL_WHB010>-BUKRS = 1.
<J_1GVL_WHB010>-IASKZ = 1.
<J_1GVL_WHB010>-BUDAT = 1.
<J_1GVL_WHB010>-TRACT = 1.

ENDLOOP.

LOOP AT IT_J_1GVL_WHB010 INTO WA_J_1GVL_WHB010.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1GVL_WHB010-PMATNR, sy-vline,
  WA_J_1GVL_WHB010-AUFNR, sy-vline,
  WA_J_1GVL_WHB010-MATNR, sy-vline,
  WA_J_1GVL_WHB010-WERKS, sy-vline,
  WA_J_1GVL_WHB010-BWTAR, sy-vline,
  WA_J_1GVL_WHB010-UMWRK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1GVL_WHB010 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_J_1GVL_WHB010 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_J_1GVL_WHB010 INTO WA_J_1GVL_WHB010.


*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 MATN1, internal->external for field PMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_WHB010-PMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_WHB010-PMATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_WHB010-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_WHB010-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_WHB010-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_WHB010-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PDMBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_WHB010-PDMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_WHB010-PDMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_WHB010-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_WHB010-DMBTR.
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_J_1GVL_WHB010_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
IASKZ TYPE STRING,
BUDAT TYPE STRING,
TRACT TYPE STRING,
PMATNR TYPE STRING,
AUFNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BWTAR TYPE STRING,
UMWRK TYPE STRING,
PBWTAR TYPE STRING,
MENGE TYPE STRING,
PDMBTR TYPE STRING,
DMBTR TYPE STRING,
WAERS TYPE STRING,
MULTIFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1GVL_WHB010_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_J_1GVL_WHB010_STR-MANDT sy-vline 
WA_J_1GVL_WHB010_STR-BUKRS sy-vline 
WA_J_1GVL_WHB010_STR-IASKZ sy-vline 
WA_J_1GVL_WHB010_STR-BUDAT sy-vline 
WA_J_1GVL_WHB010_STR-TRACT sy-vline 
WA_J_1GVL_WHB010_STR-PMATNR sy-vline 
WA_J_1GVL_WHB010_STR-AUFNR sy-vline 
WA_J_1GVL_WHB010_STR-MATNR sy-vline 
WA_J_1GVL_WHB010_STR-WERKS sy-vline 
WA_J_1GVL_WHB010_STR-BWTAR sy-vline 
WA_J_1GVL_WHB010_STR-UMWRK sy-vline 
WA_J_1GVL_WHB010_STR-PBWTAR sy-vline 
WA_J_1GVL_WHB010_STR-MENGE sy-vline 
WA_J_1GVL_WHB010_STR-PDMBTR sy-vline 
WA_J_1GVL_WHB010_STR-DMBTR sy-vline 
WA_J_1GVL_WHB010_STR-WAERS sy-vline 
WA_J_1GVL_WHB010_STR-MULTIFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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