ABAP Select data from SAP table OIH_J1B_ZFD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIH_J1B_ZFD 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 OIH_J1B_ZFD. 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 OIH_J1B_ZFD 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_OIH_J1B_ZFD TYPE STANDARD TABLE OF OIH_J1B_ZFD,
      WA_OIH_J1B_ZFD TYPE OIH_J1B_ZFD,
      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: <OIH_J1B_ZFD> TYPE OIH_J1B_ZFD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIH_J1B_ZFD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIH_J1B_ZFD
  INTO TABLE IT_OIH_J1B_ZFD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIH_J1B_ZFD
*  INTO TABLE @DATA(IT_OIH_J1B_ZFD2).
*--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_OIH_J1B_ZFD INDEX 1 INTO DATA(WA_OIH_J1B_ZFD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIH_J1B_ZFD ASSIGNING <OIH_J1B_ZFD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIH_J1B_ZFD>-MANDT = 1.
<OIH_J1B_ZFD>-PLANT = 1.
<OIH_J1B_ZFD>-PRODUCT = 1.
<OIH_J1B_ZFD>-MTXGR = 1.
<OIH_J1B_ZFD>-MOVTP = 1.

ENDLOOP.

LOOP AT IT_OIH_J1B_ZFD INTO WA_OIH_J1B_ZFD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIH_J1B_ZFD-OPTYPE, sy-vline,
  WA_OIH_J1B_ZFD-KUNNR, sy-vline,
  WA_OIH_J1B_ZFD-CGROUP, sy-vline,
  WA_OIH_J1B_ZFD-VALIDFROM, sy-vline,
  WA_OIH_J1B_ZFD-VALIDTO, sy-vline,
  WA_OIH_J1B_ZFD-DISCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIH_J1B_ZFD 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_OIH_J1B_ZFD 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_OIH_J1B_ZFD INTO WA_OIH_J1B_ZFD.


*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 PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_ZFD-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_ZFD-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_ZFD-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_ZFD-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit INVDT, internal->external for field VALIDFROM
CALL FUNCTION 'CONVERSION_EXIT_INVDT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_ZFD-VALIDFROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_ZFD-VALIDFROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit INVDT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_INVDT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_ZFD-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_ZFD-VALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_ZFD-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_ZFD-UNIT.
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_OIH_J1B_ZFD_STR, 
MANDT TYPE STRING,
PLANT TYPE STRING,
PRODUCT TYPE STRING,
MTXGR TYPE STRING,
MOVTP TYPE STRING,
OPTYPE TYPE STRING,
KUNNR TYPE STRING,
CGROUP TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
DISCOUNT TYPE STRING,
FACTOR TYPE STRING,
UNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIH_J1B_ZFD_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_OIH_J1B_ZFD_STR-MANDT sy-vline 
WA_OIH_J1B_ZFD_STR-PLANT sy-vline 
WA_OIH_J1B_ZFD_STR-PRODUCT sy-vline 
WA_OIH_J1B_ZFD_STR-MTXGR sy-vline 
WA_OIH_J1B_ZFD_STR-MOVTP sy-vline 
WA_OIH_J1B_ZFD_STR-OPTYPE sy-vline 
WA_OIH_J1B_ZFD_STR-KUNNR sy-vline 
WA_OIH_J1B_ZFD_STR-CGROUP sy-vline 
WA_OIH_J1B_ZFD_STR-VALIDFROM sy-vline 
WA_OIH_J1B_ZFD_STR-VALIDTO sy-vline 
WA_OIH_J1B_ZFD_STR-DISCOUNT sy-vline 
WA_OIH_J1B_ZFD_STR-FACTOR sy-vline 
WA_OIH_J1B_ZFD_STR-UNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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