ABAP Select data from SAP table MPOS_CD into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MPOS_CD 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 MPOS_CD. 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 MPOS_CD 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_MPOS_CD TYPE STANDARD TABLE OF MPOS_CD,
      WA_MPOS_CD TYPE MPOS_CD,
      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: <MPOS_CD> TYPE MPOS_CD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MPOS_CD
*  INTO TABLE @DATA(IT_MPOS_CD2).
*--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_MPOS_CD INDEX 1 INTO DATA(WA_MPOS_CD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MPOS_CD>-MANDT = 1.
<MPOS_CD>-WAPOS = 1.
<MPOS_CD>-WARPL = 1.
<MPOS_CD>-WSTRA = 1.
<MPOS_CD>-WPPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MPOS_CD-PSTXT, sy-vline,
  WA_MPOS_CD-EQUNR, sy-vline,
  WA_MPOS_CD-OBKNR, sy-vline,
  WA_MPOS_CD-ERKNZ, sy-vline,
  WA_MPOS_CD-AEKNZ, sy-vline,
  WA_MPOS_CD-ERNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MPOS_CD 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_MPOS_CD 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_MPOS_CD INTO WA_MPOS_CD.


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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MPOS_CD-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPOS_CD-PSPEL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit GERNR, internal->external for field SERIALNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_MPOS_CD-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPOS_CD-SERIALNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field PRUEFLOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPOS_CD-PRUEFLOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPOS_CD-PRUEFLOS.
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_MPOS_CD_STR, 
MANDT TYPE STRING,
WAPOS TYPE STRING,
WARPL TYPE STRING,
WSTRA TYPE STRING,
WPPOS TYPE STRING,
PSTXT TYPE STRING,
EQUNR TYPE STRING,
OBKNR TYPE STRING,
ERKNZ TYPE STRING,
AEKNZ TYPE STRING,
ERNAM TYPE STRING,
ERSDT TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
STATUS TYPE STRING,
LTKNZ TYPE STRING,
WPGRP TYPE STRING,
OBJTY TYPE STRING,
GEWRK TYPE STRING,
IWERK TYPE STRING,
LANGU TYPE STRING,
ILOAN TYPE STRING,
ILOAI TYPE STRING,
LAUFN TYPE STRING,
BAUTL TYPE STRING,
ANLZU TYPE STRING,
AUART TYPE STRING,
INACT TYPE STRING,
ILART TYPE STRING,
GSBER TYPE STRING,
OBJNR TYPE STRING,
IND_ABRVO TYPE STRING,
PSPEL TYPE STRING,
STD_NETZ TYPE STRING,
STD_AVO TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
MITYP TYPE STRING,
BSTNR TYPE STRING,
BSTPO TYPE STRING,
PACKNO TYPE STRING,
NETPR TYPE STRING,
WAERS TYPE STRING,
SAKTO TYPE STRING,
AUFNR TYPE STRING,
APFKT TYPE STRING,
SCRRENTY TYPE STRING,
SERIALNR TYPE STRING,
SERMAT TYPE STRING,
DEVICEID TYPE STRING,
QMNUM TYPE STRING,
QMART TYPE STRING,
LBLNI TYPE STRING,
TASK_DETERMINE TYPE STRING,
PRIOK TYPE STRING,
QMKAT TYPE STRING,
QMGRP TYPE STRING,
QMCOD TYPE STRING,
PHYNR TYPE STRING,
ART TYPE STRING,
PRUEFLOS TYPE STRING,
CD_ARTPR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MPOS_CD_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_MPOS_CD_STR-MANDT sy-vline 
WA_MPOS_CD_STR-WAPOS sy-vline 
WA_MPOS_CD_STR-WARPL sy-vline 
WA_MPOS_CD_STR-WSTRA sy-vline 
WA_MPOS_CD_STR-WPPOS sy-vline 
WA_MPOS_CD_STR-PSTXT sy-vline 
WA_MPOS_CD_STR-EQUNR sy-vline 
WA_MPOS_CD_STR-OBKNR sy-vline 
WA_MPOS_CD_STR-ERKNZ sy-vline 
WA_MPOS_CD_STR-AEKNZ sy-vline 
WA_MPOS_CD_STR-ERNAM sy-vline 
WA_MPOS_CD_STR-ERSDT sy-vline 
WA_MPOS_CD_STR-AEDAT sy-vline 
WA_MPOS_CD_STR-AENAM sy-vline 
WA_MPOS_CD_STR-PLNTY sy-vline 
WA_MPOS_CD_STR-PLNNR sy-vline 
WA_MPOS_CD_STR-PLNAL sy-vline 
WA_MPOS_CD_STR-STATUS sy-vline 
WA_MPOS_CD_STR-LTKNZ sy-vline 
WA_MPOS_CD_STR-WPGRP sy-vline 
WA_MPOS_CD_STR-OBJTY sy-vline 
WA_MPOS_CD_STR-GEWRK sy-vline 
WA_MPOS_CD_STR-IWERK sy-vline 
WA_MPOS_CD_STR-LANGU sy-vline 
WA_MPOS_CD_STR-ILOAN sy-vline 
WA_MPOS_CD_STR-ILOAI sy-vline 
WA_MPOS_CD_STR-LAUFN sy-vline 
WA_MPOS_CD_STR-BAUTL sy-vline 
WA_MPOS_CD_STR-ANLZU sy-vline 
WA_MPOS_CD_STR-AUART sy-vline 
WA_MPOS_CD_STR-INACT sy-vline 
WA_MPOS_CD_STR-ILART sy-vline 
WA_MPOS_CD_STR-GSBER sy-vline 
WA_MPOS_CD_STR-OBJNR sy-vline 
WA_MPOS_CD_STR-IND_ABRVO sy-vline 
WA_MPOS_CD_STR-PSPEL sy-vline 
WA_MPOS_CD_STR-STD_NETZ sy-vline 
WA_MPOS_CD_STR-STD_AVO sy-vline 
WA_MPOS_CD_STR-KDAUF sy-vline 
WA_MPOS_CD_STR-KDPOS sy-vline 
WA_MPOS_CD_STR-MITYP sy-vline 
WA_MPOS_CD_STR-BSTNR sy-vline 
WA_MPOS_CD_STR-BSTPO sy-vline 
WA_MPOS_CD_STR-PACKNO sy-vline 
WA_MPOS_CD_STR-NETPR sy-vline 
WA_MPOS_CD_STR-WAERS sy-vline 
WA_MPOS_CD_STR-SAKTO sy-vline 
WA_MPOS_CD_STR-AUFNR sy-vline 
WA_MPOS_CD_STR-APFKT sy-vline 
WA_MPOS_CD_STR-SCRRENTY sy-vline 
WA_MPOS_CD_STR-SERIALNR sy-vline 
WA_MPOS_CD_STR-SERMAT sy-vline 
WA_MPOS_CD_STR-DEVICEID sy-vline 
WA_MPOS_CD_STR-QMNUM sy-vline 
WA_MPOS_CD_STR-QMART sy-vline 
WA_MPOS_CD_STR-LBLNI sy-vline 
WA_MPOS_CD_STR-TASK_DETERMINE sy-vline 
WA_MPOS_CD_STR-PRIOK sy-vline 
WA_MPOS_CD_STR-QMKAT sy-vline 
WA_MPOS_CD_STR-QMGRP sy-vline 
WA_MPOS_CD_STR-QMCOD sy-vline 
WA_MPOS_CD_STR-PHYNR sy-vline 
WA_MPOS_CD_STR-ART sy-vline 
WA_MPOS_CD_STR-PRUEFLOS sy-vline 
WA_MPOS_CD_STR-CD_ARTPR sy-vline      INTO ld_text SEPARATED BY SPACE.

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