ABAP Select data from SAP table MMBSI_PO_POWL_EXTN_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMBSI_PO_POWL_EXTN_STY
*  INTO TABLE @DATA(IT_MMBSI_PO_POWL_EXTN_STY2).
*--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_MMBSI_PO_POWL_EXTN_STY INDEX 1 INTO DATA(WA_MMBSI_PO_POWL_EXTN_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMBSI_PO_POWL_EXTN_STY>-EBELN = 1.
<MMBSI_PO_POWL_EXTN_STY>-EBELP = 1.
<MMBSI_PO_POWL_EXTN_STY>-LIFNR = 1.
<MMBSI_PO_POWL_EXTN_STY>-NAME1 = 1.
<MMBSI_PO_POWL_EXTN_STY>-BSTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMBSI_PO_POWL_EXTN_STY-BSART, sy-vline,
  WA_MMBSI_PO_POWL_EXTN_STY-BATXT, sy-vline,
  WA_MMBSI_PO_POWL_EXTN_STY-EKGRP, sy-vline,
  WA_MMBSI_PO_POWL_EXTN_STY-EKNAM, sy-vline,
  WA_MMBSI_PO_POWL_EXTN_STY-EKORG, sy-vline,
  WA_MMBSI_PO_POWL_EXTN_STY-EKOTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMBSI_PO_POWL_EXTN_STY 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_MMBSI_PO_POWL_EXTN_STY 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_MMBSI_PO_POWL_EXTN_STY INTO WA_MMBSI_PO_POWL_EXTN_STY.


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

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

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

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

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

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

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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_MMBSI_PO_POWL_EXTN_STY-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMBSI_PO_POWL_EXTN_STY-SPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field SRM_CONTRACT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMBSI_PO_POWL_EXTN_STY-SRM_CONTRACT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMBSI_PO_POWL_EXTN_STY-SRM_CONTRACT_ID.
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_MMBSI_PO_POWL_EXTN_STY_STR, 
EBELN TYPE STRING,
EBELP TYPE STRING,
LIFNR TYPE STRING,
NAME1 TYPE STRING,
BSTYP TYPE STRING,
BSART TYPE STRING,
BATXT TYPE STRING,
EKGRP TYPE STRING,
EKNAM TYPE STRING,
EKORG TYPE STRING,
EKOTX TYPE STRING,
BEDAT TYPE STRING,
MATNR TYPE STRING,
TXZ01 TYPE STRING,
MATKL TYPE STRING,
WGBEZ TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
BPRME TYPE STRING,
NETPR TYPE STRING,
WAERS TYPE STRING,
PEINH TYPE STRING,
NETWR TYPE STRING,
BRTWR TYPE STRING,
BSTAE TYPE STRING,
BSBEZ TYPE STRING,
PSTYP TYPE STRING,
KNTTP TYPE STRING,
WERKS TYPE STRING,
WERTX TYPE STRING,
LGORT TYPE STRING,
LGOBE TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
INFNR TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
IDNLF TYPE STRING,
KZABS TYPE STRING,
LABNR TYPE STRING,
MAHNZ TYPE STRING,
MAHN1 TYPE STRING,
CFLDR_HEAD TYPE STRING,
CFLDR_POS TYPE STRING,
SPRAS TYPE STRING,
LTSNR TYPE STRING,
RESWK TYPE STRING,
RESWK_TX TYPE STRING,
EINDT TYPE STRING,
OWEMG TYPE STRING,
OBSMG TYPE STRING,
FRGRL TYPE STRING,
RETPO TYPE STRING,
FRGCO TYPE STRING,
FRGKE TYPE STRING,
FRGGR TYPE STRING,
FRGSX TYPE STRING,
FRGZU TYPE STRING,
GUID TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
ERNAM TYPE STRING,
LOEKZ TYPE STRING,
EPSTP TYPE STRING,
PTEXT TYPE STRING,
WEBRE TYPE STRING,
ELIKZ TYPE STRING,
WEUNB TYPE STRING,
PACKNO TYPE STRING,
LOG_SYS TYPE STRING,
SRM_CONTRACT_ID TYPE STRING,
SRM_CONTRACT_ITM TYPE STRING,
HIERARCHY_EXISTS TYPE STRING,
UPDATE_PENDING TYPE STRING,
MEMORYTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMBSI_PO_POWL_EXTN_STY_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_MMBSI_PO_POWL_EXTN_STY_STR-EBELN sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-EBELP sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-LIFNR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-NAME1 sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BSTYP sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BSART sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BATXT sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-EKGRP sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-EKNAM sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-EKORG sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-EKOTX sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BEDAT sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-MATNR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-TXZ01 sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-MATKL sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-WGBEZ sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-MENGE sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-MEINS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BPRME sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-NETPR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-WAERS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-PEINH sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-NETWR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BRTWR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BSTAE sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BSBEZ sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-PSTYP sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-KNTTP sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-WERKS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-WERTX sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-LGORT sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-LGOBE sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BANFN sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BNFPO sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-INFNR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-KONNR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-KTPNR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-IDNLF sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-KZABS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-LABNR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-MAHNZ sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-MAHN1 sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-CFLDR_HEAD sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-CFLDR_POS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-SPRAS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-LTSNR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-RESWK sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-RESWK_TX sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-EINDT sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-OWEMG sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-OBSMG sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-FRGRL sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-RETPO sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-FRGCO sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-FRGKE sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-FRGGR sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-FRGSX sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-FRGZU sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-GUID sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BUKRS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-BUTXT sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-ERNAM sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-LOEKZ sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-EPSTP sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-PTEXT sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-WEBRE sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-ELIKZ sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-WEUNB sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-PACKNO sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-LOG_SYS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-SRM_CONTRACT_ID sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-SRM_CONTRACT_ITM sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-HIERARCHY_EXISTS sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-UPDATE_PENDING sy-vline 
WA_MMBSI_PO_POWL_EXTN_STY_STR-MEMORYTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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