ABAP Select data from SAP table OILMSEG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OILMSEG
*  INTO TABLE @DATA(IT_OILMSEG2).
*--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_OILMSEG INDEX 1 INTO DATA(WA_OILMSEG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OILMSEG>-OIKNUMV = 1.
<OILMSEG>-OIEXGPTR = 1.
<OILMSEG>-OIMATPST = 1.
<OILMSEG>-OIMATIE = 1.
<OILMSEG>-OIEXGTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OILMSEG-OIFEETOT, sy-vline,
  WA_OILMSEG-OIFEEPST, sy-vline,
  WA_OILMSEG-OIFEEDT, sy-vline,
  WA_OILMSEG-OIMATREF, sy-vline,
  WA_OILMSEG-OIEXGNUM, sy-vline,
  WA_OILMSEG-OINETCYC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OILMSEG 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_OILMSEG 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_OILMSEG INTO WA_OILMSEG.


*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 OIEXGPTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OILMSEG-OIEXGPTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OILMSEG-OIEXGPTR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field OIH_LCFOL_GI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OILMSEG-OIH_LCFOL_GI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OILMSEG-OIH_LCFOL_GI.
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_OILMSEG_STR, 
OIKNUMV TYPE STRING,
OIEXGPTR TYPE STRING,
OIMATPST TYPE STRING,
OIMATIE TYPE STRING,
OIEXGTYP TYPE STRING,
OIFEETOT TYPE STRING,
OIFEEPST TYPE STRING,
OIFEEDT TYPE STRING,
OIMATREF TYPE STRING,
OIEXGNUM TYPE STRING,
OINETCYC TYPE STRING,
OIJ1BNFFIM TYPE STRING,
OITRKNR TYPE STRING,
OITRKJR TYPE STRING,
OIEXTNR TYPE STRING,
OIITMNR TYPE STRING,
OIFTIND TYPE STRING,
OIPRIOP TYPE STRING,
OITRIND TYPE STRING,
OIGHNDL TYPE STRING,
OIUMBAR TYPE STRING,
OISBREL TYPE STRING,
OIBASPROD TYPE STRING,
OIBASVAL TYPE STRING,
OIGLERF TYPE STRING,
OIGLSKU TYPE STRING,
OIGLBPR TYPE STRING,
OIGLBST TYPE STRING,
OIGLCALC TYPE STRING,
OIBBSWQTY TYPE STRING,
OIASTBW TYPE STRING,
OIVBELN TYPE STRING,
OIPOSNR TYPE STRING,
OIPIPEVAL TYPE STRING,
OIC_LIFNR TYPE STRING,
OIC_DCITYC TYPE STRING,
OIC_DCOUNC TYPE STRING,
OIC_DREGIO TYPE STRING,
OIC_DLAND1 TYPE STRING,
OIC_OCITYC TYPE STRING,
OIC_OCOUNC TYPE STRING,
OIC_OREGIO TYPE STRING,
OIC_OLAND1 TYPE STRING,
OIC_PORGIN TYPE STRING,
OIC_PDESTN TYPE STRING,
OIC_PTRIP TYPE STRING,
OIC_PBATCH TYPE STRING,
OIC_MOT TYPE STRING,
OIC_AORGIN TYPE STRING,
OIC_ADESTN TYPE STRING,
OIC_TRUCKN TYPE STRING,
OIA_BASELO 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,
OID_EXTBOL TYPE STRING,
OID_MISCDL TYPE STRING,
OIBOMHEAD TYPE STRING,
OIB_TIMESTAMP TYPE STRING,
OIB_GUID_OPEN TYPE STRING,
OIB_GUID_CLOSE TYPE STRING,
OIB_SOCNR 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,
OIEDBAL_GI TYPE STRING,
OIEDBALM_GI TYPE STRING,
OICERTF1_GI TYPE STRING,
OIDATFM1_GI TYPE STRING,
OIDATTO1_GI TYPE STRING,
OIH_LICTP_GI TYPE STRING,
OIH_LICIN_GI TYPE STRING,
OIH_LCFOL_GI TYPE STRING,
OIH_FOLQTY_GI TYPE STRING,
OIHANTYP_GI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OILMSEG_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_OILMSEG_STR-OIKNUMV sy-vline 
WA_OILMSEG_STR-OIEXGPTR sy-vline 
WA_OILMSEG_STR-OIMATPST sy-vline 
WA_OILMSEG_STR-OIMATIE sy-vline 
WA_OILMSEG_STR-OIEXGTYP sy-vline 
WA_OILMSEG_STR-OIFEETOT sy-vline 
WA_OILMSEG_STR-OIFEEPST sy-vline 
WA_OILMSEG_STR-OIFEEDT sy-vline 
WA_OILMSEG_STR-OIMATREF sy-vline 
WA_OILMSEG_STR-OIEXGNUM sy-vline 
WA_OILMSEG_STR-OINETCYC sy-vline 
WA_OILMSEG_STR-OIJ1BNFFIM sy-vline 
WA_OILMSEG_STR-OITRKNR sy-vline 
WA_OILMSEG_STR-OITRKJR sy-vline 
WA_OILMSEG_STR-OIEXTNR sy-vline 
WA_OILMSEG_STR-OIITMNR sy-vline 
WA_OILMSEG_STR-OIFTIND sy-vline 
WA_OILMSEG_STR-OIPRIOP sy-vline 
WA_OILMSEG_STR-OITRIND sy-vline 
WA_OILMSEG_STR-OIGHNDL sy-vline 
WA_OILMSEG_STR-OIUMBAR sy-vline 
WA_OILMSEG_STR-OISBREL sy-vline 
WA_OILMSEG_STR-OIBASPROD sy-vline 
WA_OILMSEG_STR-OIBASVAL sy-vline 
WA_OILMSEG_STR-OIGLERF sy-vline 
WA_OILMSEG_STR-OIGLSKU sy-vline 
WA_OILMSEG_STR-OIGLBPR sy-vline 
WA_OILMSEG_STR-OIGLBST sy-vline 
WA_OILMSEG_STR-OIGLCALC sy-vline 
WA_OILMSEG_STR-OIBBSWQTY sy-vline 
WA_OILMSEG_STR-OIASTBW sy-vline 
WA_OILMSEG_STR-OIVBELN sy-vline 
WA_OILMSEG_STR-OIPOSNR sy-vline 
WA_OILMSEG_STR-OIPIPEVAL sy-vline 
WA_OILMSEG_STR-OIC_LIFNR sy-vline 
WA_OILMSEG_STR-OIC_DCITYC sy-vline 
WA_OILMSEG_STR-OIC_DCOUNC sy-vline 
WA_OILMSEG_STR-OIC_DREGIO sy-vline 
WA_OILMSEG_STR-OIC_DLAND1 sy-vline 
WA_OILMSEG_STR-OIC_OCITYC sy-vline 
WA_OILMSEG_STR-OIC_OCOUNC sy-vline 
WA_OILMSEG_STR-OIC_OREGIO sy-vline 
WA_OILMSEG_STR-OIC_OLAND1 sy-vline 
WA_OILMSEG_STR-OIC_PORGIN sy-vline 
WA_OILMSEG_STR-OIC_PDESTN sy-vline 
WA_OILMSEG_STR-OIC_PTRIP sy-vline 
WA_OILMSEG_STR-OIC_PBATCH sy-vline 
WA_OILMSEG_STR-OIC_MOT sy-vline 
WA_OILMSEG_STR-OIC_AORGIN sy-vline 
WA_OILMSEG_STR-OIC_ADESTN sy-vline 
WA_OILMSEG_STR-OIC_TRUCKN sy-vline 
WA_OILMSEG_STR-OIA_BASELO sy-vline 
WA_OILMSEG_STR-OICERTF1 sy-vline 
WA_OILMSEG_STR-OIDATFM1 sy-vline 
WA_OILMSEG_STR-OIDATTO1 sy-vline 
WA_OILMSEG_STR-OIH_LICTP sy-vline 
WA_OILMSEG_STR-OIH_LICIN sy-vline 
WA_OILMSEG_STR-OIH_LCFOL sy-vline 
WA_OILMSEG_STR-OIH_FOLQTY sy-vline 
WA_OILMSEG_STR-OID_EXTBOL sy-vline 
WA_OILMSEG_STR-OID_MISCDL sy-vline 
WA_OILMSEG_STR-OIBOMHEAD sy-vline 
WA_OILMSEG_STR-OIB_TIMESTAMP sy-vline 
WA_OILMSEG_STR-OIB_GUID_OPEN sy-vline 
WA_OILMSEG_STR-OIB_GUID_CLOSE sy-vline 
WA_OILMSEG_STR-OIB_SOCNR sy-vline 
WA_OILMSEG_STR-OITAXFROM sy-vline 
WA_OILMSEG_STR-OITAXTO sy-vline 
WA_OILMSEG_STR-OIHANTYP sy-vline 
WA_OILMSEG_STR-OITAXGRP sy-vline 
WA_OILMSEG_STR-OIPRICIE sy-vline 
WA_OILMSEG_STR-OIINVREC sy-vline 
WA_OILMSEG_STR-OIOILCON sy-vline 
WA_OILMSEG_STR-OIOILCON2 sy-vline 
WA_OILMSEG_STR-OIFUTDT sy-vline 
WA_OILMSEG_STR-OIFUTDT2 sy-vline 
WA_OILMSEG_STR-OIUOMQT sy-vline 
WA_OILMSEG_STR-OITAXQT sy-vline 
WA_OILMSEG_STR-OIFUTQT sy-vline 
WA_OILMSEG_STR-OIFUTQT2 sy-vline 
WA_OILMSEG_STR-OITAXGRP2 sy-vline 
WA_OILMSEG_STR-OIEDBAL_GI sy-vline 
WA_OILMSEG_STR-OIEDBALM_GI sy-vline 
WA_OILMSEG_STR-OICERTF1_GI sy-vline 
WA_OILMSEG_STR-OIDATFM1_GI sy-vline 
WA_OILMSEG_STR-OIDATTO1_GI sy-vline 
WA_OILMSEG_STR-OIH_LICTP_GI sy-vline 
WA_OILMSEG_STR-OIH_LICIN_GI sy-vline 
WA_OILMSEG_STR-OIH_LCFOL_GI sy-vline 
WA_OILMSEG_STR-OIH_FOLQTY_GI sy-vline 
WA_OILMSEG_STR-OIHANTYP_GI sy-vline      INTO ld_text SEPARATED BY SPACE.

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