ABAP Select data from SAP table V_PO_HIST_MAA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_PO_HIST_MAA
*  INTO TABLE @DATA(IT_V_PO_HIST_MAA2).
*--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_V_PO_HIST_MAA INDEX 1 INTO DATA(WA_V_PO_HIST_MAA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_PO_HIST_MAA>-BEDAT = 1.
<V_PO_HIST_MAA>-BSART = 1.
<V_PO_HIST_MAA>-BSTYP = 1.
<V_PO_HIST_MAA>-EBELN = 1.
<V_PO_HIST_MAA>-EKGRP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_PO_HIST_MAA-EKORG, sy-vline,
  WA_V_PO_HIST_MAA-KDATB, sy-vline,
  WA_V_PO_HIST_MAA-KDATE, sy-vline,
  WA_V_PO_HIST_MAA-LBLIF, sy-vline,
  WA_V_PO_HIST_MAA-LIFNR, sy-vline,
  WA_V_PO_HIST_MAA-LIFRE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_PO_HIST_MAA 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_V_PO_HIST_MAA 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_V_PO_HIST_MAA INTO WA_V_PO_HIST_MAA.


*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_V_PO_HIST_MAA-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_PO_HIST_MAA-EBELN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit EXCRT, internal->external for field WKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_V_PO_HIST_MAA-WKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_PO_HIST_MAA-WKURS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field EMLIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_PO_HIST_MAA-EMLIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_PO_HIST_MAA-EMLIF.
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_V_PO_HIST_MAA_STR, 
BEDAT TYPE STRING,
BSART TYPE STRING,
BSTYP TYPE STRING,
EBELN TYPE STRING,
EKGRP TYPE STRING,
EKORG TYPE STRING,
KDATB TYPE STRING,
KDATE TYPE STRING,
LBLIF TYPE STRING,
LIFNR TYPE STRING,
LIFRE TYPE STRING,
LLIEF TYPE STRING,
LOGSY TYPE STRING,
RESWK TYPE STRING,
STATU TYPE STRING,
WAERS TYPE STRING,
WKURS TYPE STRING,
BUKRS TYPE STRING,
AFNAM TYPE STRING,
AKTNR TYPE STRING,
BSGRU TYPE STRING,
EBELP TYPE STRING,
ELIKZ TYPE STRING,
EMATN TYPE STRING,
EREKZ TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
LGORT TYPE STRING,
LMEIN TYPE STRING,
MATKL TYPE STRING,
MATNR TYPE STRING,
MEINS TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
PSTYP TYPE STRING,
TXZ01 TYPE STRING,
UMREN TYPE STRING,
UMREZ TYPE STRING,
WEBRE TYPE STRING,
WERKS TYPE STRING,
XERSY TYPE STRING,
KNTTP TYPE STRING,
VRTKZ TYPE STRING,
EMLIF TYPE STRING,
EMNFR TYPE STRING,
EMPST TYPE STRING,
TWRKZ TYPE STRING,
MANDT TYPE STRING,
EFFWR TYPE STRING,
NETWR TYPE STRING,
MENGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_PO_HIST_MAA_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_V_PO_HIST_MAA_STR-BEDAT sy-vline 
WA_V_PO_HIST_MAA_STR-BSART sy-vline 
WA_V_PO_HIST_MAA_STR-BSTYP sy-vline 
WA_V_PO_HIST_MAA_STR-EBELN sy-vline 
WA_V_PO_HIST_MAA_STR-EKGRP sy-vline 
WA_V_PO_HIST_MAA_STR-EKORG sy-vline 
WA_V_PO_HIST_MAA_STR-KDATB sy-vline 
WA_V_PO_HIST_MAA_STR-KDATE sy-vline 
WA_V_PO_HIST_MAA_STR-LBLIF sy-vline 
WA_V_PO_HIST_MAA_STR-LIFNR sy-vline 
WA_V_PO_HIST_MAA_STR-LIFRE sy-vline 
WA_V_PO_HIST_MAA_STR-LLIEF sy-vline 
WA_V_PO_HIST_MAA_STR-LOGSY sy-vline 
WA_V_PO_HIST_MAA_STR-RESWK sy-vline 
WA_V_PO_HIST_MAA_STR-STATU sy-vline 
WA_V_PO_HIST_MAA_STR-WAERS sy-vline 
WA_V_PO_HIST_MAA_STR-WKURS sy-vline 
WA_V_PO_HIST_MAA_STR-BUKRS sy-vline 
WA_V_PO_HIST_MAA_STR-AFNAM sy-vline 
WA_V_PO_HIST_MAA_STR-AKTNR sy-vline 
WA_V_PO_HIST_MAA_STR-BSGRU sy-vline 
WA_V_PO_HIST_MAA_STR-EBELP sy-vline 
WA_V_PO_HIST_MAA_STR-ELIKZ sy-vline 
WA_V_PO_HIST_MAA_STR-EMATN sy-vline 
WA_V_PO_HIST_MAA_STR-EREKZ sy-vline 
WA_V_PO_HIST_MAA_STR-KONNR sy-vline 
WA_V_PO_HIST_MAA_STR-KTPNR sy-vline 
WA_V_PO_HIST_MAA_STR-LGORT sy-vline 
WA_V_PO_HIST_MAA_STR-LMEIN sy-vline 
WA_V_PO_HIST_MAA_STR-MATKL sy-vline 
WA_V_PO_HIST_MAA_STR-MATNR sy-vline 
WA_V_PO_HIST_MAA_STR-MEINS sy-vline 
WA_V_PO_HIST_MAA_STR-NETPR sy-vline 
WA_V_PO_HIST_MAA_STR-PEINH sy-vline 
WA_V_PO_HIST_MAA_STR-PSTYP sy-vline 
WA_V_PO_HIST_MAA_STR-TXZ01 sy-vline 
WA_V_PO_HIST_MAA_STR-UMREN sy-vline 
WA_V_PO_HIST_MAA_STR-UMREZ sy-vline 
WA_V_PO_HIST_MAA_STR-WEBRE sy-vline 
WA_V_PO_HIST_MAA_STR-WERKS sy-vline 
WA_V_PO_HIST_MAA_STR-XERSY sy-vline 
WA_V_PO_HIST_MAA_STR-KNTTP sy-vline 
WA_V_PO_HIST_MAA_STR-VRTKZ sy-vline 
WA_V_PO_HIST_MAA_STR-EMLIF sy-vline 
WA_V_PO_HIST_MAA_STR-EMNFR sy-vline 
WA_V_PO_HIST_MAA_STR-EMPST sy-vline 
WA_V_PO_HIST_MAA_STR-TWRKZ sy-vline 
WA_V_PO_HIST_MAA_STR-MANDT sy-vline 
WA_V_PO_HIST_MAA_STR-EFFWR sy-vline 
WA_V_PO_HIST_MAA_STR-NETWR sy-vline 
WA_V_PO_HIST_MAA_STR-MENGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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