ABAP Select data from SAP table E3OILSM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3OILSM 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 E3OILSM. 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 E3OILSM 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_E3OILSM TYPE STANDARD TABLE OF E3OILSM,
      WA_E3OILSM TYPE E3OILSM,
      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: <E3OILSM> TYPE E3OILSM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3OILSM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3OILSM
  INTO TABLE IT_E3OILSM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3OILSM
*  INTO TABLE @DATA(IT_E3OILSM2).
*--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_E3OILSM INDEX 1 INTO DATA(WA_E3OILSM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3OILSM ASSIGNING <E3OILSM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3OILSM>-MAT_ITM = 1.
<E3OILSM>-MATNR = 1.
<E3OILSM>-WERKS = 1.
<E3OILSM>-STLTY = 1.
<E3OILSM>-STLNR = 1.

ENDLOOP.

LOOP AT IT_E3OILSM INTO WA_E3OILSM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3OILSM-LGORT, sy-vline,
  WA_E3OILSM-CHARG, sy-vline,
  WA_E3OILSM-BWTAR, sy-vline,
  WA_E3OILSM-TRANSF, sy-vline,
  WA_E3OILSM-LABST, sy-vline,
  WA_E3OILSM-GLQTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3OILSM 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_E3OILSM 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_E3OILSM INTO WA_E3OILSM.


*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_E3OILSM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3OILSM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field STLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_E3OILSM-STLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3OILSM-STLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3OILSM-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3OILSM-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_E3OILSM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3OILSM-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OIGROUPNAM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3OILSM-OIGROUPNAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3OILSM-OIGROUPNAM.
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_E3OILSM_STR, 
MAT_ITM TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
STLTY TYPE STRING,
STLNR TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
BWTAR TYPE STRING,
TRANSF TYPE STRING,
LABST TYPE STRING,
GLQTY TYPE STRING,
XBLNR TYPE STRING,
QTY_ITM TYPE STRING,
HPM_ITM TYPE STRING,
XLONG TYPE STRING,
XMCNG TYPE STRING,
MAKTX TYPE STRING,
BOMMT TYPE STRING,
ITSTDE TYPE STRING,
BTCHDES TYPE STRING,
OIHANTYP TYPE STRING,
HANTYPLT TYPE STRING,
HANTYPLU TYPE STRING,
HANTYPGN TYPE STRING,
HANTYPLS TYPE STRING,
HANTYPRT TYPE STRING,
HANTYPRU TYPE STRING,
N_SLC TYPE STRING,
N_BWTAR TYPE STRING,
BWTAR1 TYPE STRING,
KOSTL TYPE STRING,
XCHPF TYPE STRING,
XCHAR TYPE STRING,
BWTTY TYPE STRING,
MEINS TYPE STRING,
OIGROUPNAM TYPE STRING,
OITAXGRP TYPE STRING,
CMETH TYPE STRING,
UOMGR TYPE STRING,
UMRSL TYPE STRING,
UNALL_QTY TYPE STRING,
LUNALL_QTY TYPE STRING,
BAL_FLAG TYPE STRING,
UPDATEFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3OILSM_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_E3OILSM_STR-MAT_ITM sy-vline 
WA_E3OILSM_STR-MATNR sy-vline 
WA_E3OILSM_STR-WERKS sy-vline 
WA_E3OILSM_STR-STLTY sy-vline 
WA_E3OILSM_STR-STLNR sy-vline 
WA_E3OILSM_STR-LGORT sy-vline 
WA_E3OILSM_STR-CHARG sy-vline 
WA_E3OILSM_STR-BWTAR sy-vline 
WA_E3OILSM_STR-TRANSF sy-vline 
WA_E3OILSM_STR-LABST sy-vline 
WA_E3OILSM_STR-GLQTY sy-vline 
WA_E3OILSM_STR-XBLNR sy-vline 
WA_E3OILSM_STR-QTY_ITM sy-vline 
WA_E3OILSM_STR-HPM_ITM sy-vline 
WA_E3OILSM_STR-XLONG sy-vline 
WA_E3OILSM_STR-XMCNG sy-vline 
WA_E3OILSM_STR-MAKTX sy-vline 
WA_E3OILSM_STR-BOMMT sy-vline 
WA_E3OILSM_STR-ITSTDE sy-vline 
WA_E3OILSM_STR-BTCHDES sy-vline 
WA_E3OILSM_STR-OIHANTYP sy-vline 
WA_E3OILSM_STR-HANTYPLT sy-vline 
WA_E3OILSM_STR-HANTYPLU sy-vline 
WA_E3OILSM_STR-HANTYPGN sy-vline 
WA_E3OILSM_STR-HANTYPLS sy-vline 
WA_E3OILSM_STR-HANTYPRT sy-vline 
WA_E3OILSM_STR-HANTYPRU sy-vline 
WA_E3OILSM_STR-N_SLC sy-vline 
WA_E3OILSM_STR-N_BWTAR sy-vline 
WA_E3OILSM_STR-BWTAR1 sy-vline 
WA_E3OILSM_STR-KOSTL sy-vline 
WA_E3OILSM_STR-XCHPF sy-vline 
WA_E3OILSM_STR-XCHAR sy-vline 
WA_E3OILSM_STR-BWTTY sy-vline 
WA_E3OILSM_STR-MEINS sy-vline 
WA_E3OILSM_STR-OIGROUPNAM sy-vline 
WA_E3OILSM_STR-OITAXGRP sy-vline 
WA_E3OILSM_STR-CMETH sy-vline 
WA_E3OILSM_STR-UOMGR sy-vline 
WA_E3OILSM_STR-UMRSL sy-vline 
WA_E3OILSM_STR-UNALL_QTY sy-vline 
WA_E3OILSM_STR-LUNALL_QTY sy-vline 
WA_E3OILSM_STR-BAL_FLAG sy-vline 
WA_E3OILSM_STR-UPDATEFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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