ABAP Select data from SAP table OIH_MIGO_HTDP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIH_MIGO_HTDP 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_MIGO_HTDP. 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_MIGO_HTDP 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_MIGO_HTDP TYPE STANDARD TABLE OF OIH_MIGO_HTDP,
      WA_OIH_MIGO_HTDP TYPE OIH_MIGO_HTDP,
      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_MIGO_HTDP> TYPE OIH_MIGO_HTDP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIH_MIGO_HTDP
*  INTO TABLE @DATA(IT_OIH_MIGO_HTDP2).
*--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_MIGO_HTDP INDEX 1 INTO DATA(WA_OIH_MIGO_HTDP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIH_MIGO_HTDP>-GUID = 1.
<OIH_MIGO_HTDP>-LINE_ID = 1.
<OIH_MIGO_HTDP>-BUKRS = 1.
<OIH_MIGO_HTDP>-MATNR = 1.
<OIH_MIGO_HTDP>-WERKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIH_MIGO_HTDP-BWTAR, sy-vline,
  WA_OIH_MIGO_HTDP-TAXKEY, sy-vline,
  WA_OIH_MIGO_HTDP-OITAXFROM, sy-vline,
  WA_OIH_MIGO_HTDP-OITAXTO, sy-vline,
  WA_OIH_MIGO_HTDP-OIHANTYP, sy-vline,
  WA_OIH_MIGO_HTDP-OITAXGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIH_MIGO_HTDP 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_MIGO_HTDP 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_MIGO_HTDP INTO WA_OIH_MIGO_HTDP.


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

*Conversion exit CUNIT, internal->external for field OIUOMQT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_MIGO_HTDP-OIUOMQT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_MIGO_HTDP-OIUOMQT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_MIGO_HTDP-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_MIGO_HTDP-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_MIGO_HTDP-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_MIGO_HTDP-ERFME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_MIGO_HTDP-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_MIGO_HTDP-BPRME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BSTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_MIGO_HTDP-BSTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_MIGO_HTDP-BSTME.
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_MIGO_HTDP_STR, 
GUID TYPE STRING,
LINE_ID TYPE STRING,
BUKRS TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BWTAR TYPE STRING,
TAXKEY TYPE STRING,
OITAXFROM TYPE STRING,
OITAXTO TYPE STRING,
OIHANTYP TYPE STRING,
OITAXGRP TYPE STRING,
OIPRICIE TYPE STRING,
OIINVREC TYPE STRING,
OIOILCON TYPE STRING,
OIOILCON2 TYPE STRING,
OIFUTDT TYPE STRING,
OIFUTDT2 TYPE STRING,
OIUOMQT TYPE STRING,
OITAXQT TYPE STRING,
OIFUTQT TYPE STRING,
OIFUTQT2 TYPE STRING,
OITAXGRP2 TYPE STRING,
OICERTF1 TYPE STRING,
OIDATFM1 TYPE STRING,
OIDATTO1 TYPE STRING,
OIH_LICTP TYPE STRING,
OIH_LICIN TYPE STRING,
OIH_LCFOL TYPE STRING,
OIH_FOLQTY TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
BPMNG TYPE STRING,
BPRME TYPE STRING,
BSTMG TYPE STRING,
BSTME TYPE STRING,
REFDOC_HANTYP TYPE STRING,
REFDOC_BWTAR TYPE STRING,
ITEM_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIH_MIGO_HTDP_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_MIGO_HTDP_STR-GUID sy-vline 
WA_OIH_MIGO_HTDP_STR-LINE_ID sy-vline 
WA_OIH_MIGO_HTDP_STR-BUKRS sy-vline 
WA_OIH_MIGO_HTDP_STR-MATNR sy-vline 
WA_OIH_MIGO_HTDP_STR-WERKS sy-vline 
WA_OIH_MIGO_HTDP_STR-BWTAR sy-vline 
WA_OIH_MIGO_HTDP_STR-TAXKEY sy-vline 
WA_OIH_MIGO_HTDP_STR-OITAXFROM sy-vline 
WA_OIH_MIGO_HTDP_STR-OITAXTO sy-vline 
WA_OIH_MIGO_HTDP_STR-OIHANTYP sy-vline 
WA_OIH_MIGO_HTDP_STR-OITAXGRP sy-vline 
WA_OIH_MIGO_HTDP_STR-OIPRICIE sy-vline 
WA_OIH_MIGO_HTDP_STR-OIINVREC sy-vline 
WA_OIH_MIGO_HTDP_STR-OIOILCON sy-vline 
WA_OIH_MIGO_HTDP_STR-OIOILCON2 sy-vline 
WA_OIH_MIGO_HTDP_STR-OIFUTDT sy-vline 
WA_OIH_MIGO_HTDP_STR-OIFUTDT2 sy-vline 
WA_OIH_MIGO_HTDP_STR-OIUOMQT sy-vline 
WA_OIH_MIGO_HTDP_STR-OITAXQT sy-vline 
WA_OIH_MIGO_HTDP_STR-OIFUTQT sy-vline 
WA_OIH_MIGO_HTDP_STR-OIFUTQT2 sy-vline 
WA_OIH_MIGO_HTDP_STR-OITAXGRP2 sy-vline 
WA_OIH_MIGO_HTDP_STR-OICERTF1 sy-vline 
WA_OIH_MIGO_HTDP_STR-OIDATFM1 sy-vline 
WA_OIH_MIGO_HTDP_STR-OIDATTO1 sy-vline 
WA_OIH_MIGO_HTDP_STR-OIH_LICTP sy-vline 
WA_OIH_MIGO_HTDP_STR-OIH_LICIN sy-vline 
WA_OIH_MIGO_HTDP_STR-OIH_LCFOL sy-vline 
WA_OIH_MIGO_HTDP_STR-OIH_FOLQTY sy-vline 
WA_OIH_MIGO_HTDP_STR-MENGE sy-vline 
WA_OIH_MIGO_HTDP_STR-MEINS sy-vline 
WA_OIH_MIGO_HTDP_STR-ERFMG sy-vline 
WA_OIH_MIGO_HTDP_STR-ERFME sy-vline 
WA_OIH_MIGO_HTDP_STR-BPMNG sy-vline 
WA_OIH_MIGO_HTDP_STR-BPRME sy-vline 
WA_OIH_MIGO_HTDP_STR-BSTMG sy-vline 
WA_OIH_MIGO_HTDP_STR-BSTME sy-vline 
WA_OIH_MIGO_HTDP_STR-REFDOC_HANTYP sy-vline 
WA_OIH_MIGO_HTDP_STR-REFDOC_BWTAR sy-vline 
WA_OIH_MIGO_HTDP_STR-ITEM_STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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