ABAP Select data from SAP table FMCA_INVPOS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCA_INVPOS
*  INTO TABLE @DATA(IT_FMCA_INVPOS2).
*--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_FMCA_INVPOS INDEX 1 INTO DATA(WA_FMCA_INVPOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCA_INVPOS>-PAYGR = 1.
<FMCA_INVPOS>-GPART = 1.
<FMCA_INVPOS>-EMGPA = 1.
<FMCA_INVPOS>-EMADR = 1.
<FMCA_INVPOS>-EMBVT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCA_INVPOS-EMCRD, sy-vline,
  WA_FMCA_INVPOS-VKONV, sy-vline,
  WA_FMCA_INVPOS-SPRIO, sy-vline,
  WA_FMCA_INVPOS-OPBUK, sy-vline,
  WA_FMCA_INVPOS-SPZAH, sy-vline,
  WA_FMCA_INVPOS-ORIZS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCA_INVPOS 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_FMCA_INVPOS 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_FMCA_INVPOS INTO WA_FMCA_INVPOS.


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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMCA_INVPOS-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCA_INVPOS-OPBEL.
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_FMCA_INVPOS_STR, 
PAYGR TYPE STRING,
GPART TYPE STRING,
EMGPA TYPE STRING,
EMADR TYPE STRING,
EMBVT TYPE STRING,
EMCRD TYPE STRING,
VKONV TYPE STRING,
SPRIO TYPE STRING,
OPBUK TYPE STRING,
SPZAH TYPE STRING,
ORIZS TYPE STRING,
CLRLO TYPE STRING,
POKEN TYPE STRING,
WAERS TYPE STRING,
PYMET TYPE STRING,
PYGRP TYPE STRING,
PDKEY TYPE STRING,
PYGRB TYPE STRING,
PAYGR TYPE STRING,
C4EYE TYPE STRING,
LFDNR TYPE STRING,
EIGBV TYPE STRING,
PPKEY TYPE STRING,
PRDAT TYPE STRING,
SUBNR TYPE STRING,
PPACC TYPE STRING,
PPPTB TYPE STRING,
MNDID TYPE STRING,
PNNUM TYPE STRING,
PNHKF TYPE STRING,
PNCTRR TYPE STRING,
XTAX TYPE STRING,
TAX_COUNTRY TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
AUNUM TYPE STRING,
AUTRA TYPE STRING,
AUDAT TYPE STRING,
MERCH TYPE STRING,
EXPDT TYPE STRING,
EXPTM TYPE STRING,
CGUID TYPE STRING,
ENCTP TYPE STRING,
MASKED_ID TYPE STRING,
OBJ1R_X TYPE STRING,
OBJ1X_X TYPE STRING,
ABWRE_X TYPE STRING,
ADRRE_X TYPE STRING,
EZAWE_X TYPE STRING,
EBVTY_X TYPE STRING,
ABWRA_X TYPE STRING,
ADRRA_X TYPE STRING,
AZAWE_X TYPE STRING,
ABVTY_X TYPE STRING,
CCARD_ID TYPE STRING,
CCARD_OUT TYPE STRING,
ADRNR TYPE STRING,
EIGBV_X TYPE STRING,
DDLCU_X TYPE STRING,
SUBAP_X TYPE STRING,
MNDID_X TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCA_INVPOS_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_FMCA_INVPOS_STR-PAYGR sy-vline 
WA_FMCA_INVPOS_STR-GPART sy-vline 
WA_FMCA_INVPOS_STR-EMGPA sy-vline 
WA_FMCA_INVPOS_STR-EMADR sy-vline 
WA_FMCA_INVPOS_STR-EMBVT sy-vline 
WA_FMCA_INVPOS_STR-EMCRD sy-vline 
WA_FMCA_INVPOS_STR-VKONV sy-vline 
WA_FMCA_INVPOS_STR-SPRIO sy-vline 
WA_FMCA_INVPOS_STR-OPBUK sy-vline 
WA_FMCA_INVPOS_STR-SPZAH sy-vline 
WA_FMCA_INVPOS_STR-ORIZS sy-vline 
WA_FMCA_INVPOS_STR-CLRLO sy-vline 
WA_FMCA_INVPOS_STR-POKEN sy-vline 
WA_FMCA_INVPOS_STR-WAERS sy-vline 
WA_FMCA_INVPOS_STR-PYMET sy-vline 
WA_FMCA_INVPOS_STR-PYGRP sy-vline 
WA_FMCA_INVPOS_STR-PDKEY sy-vline 
WA_FMCA_INVPOS_STR-PYGRB sy-vline 
WA_FMCA_INVPOS_STR-PAYGR sy-vline 
WA_FMCA_INVPOS_STR-C4EYE sy-vline 
WA_FMCA_INVPOS_STR-LFDNR sy-vline 
WA_FMCA_INVPOS_STR-EIGBV sy-vline 
WA_FMCA_INVPOS_STR-PPKEY sy-vline 
WA_FMCA_INVPOS_STR-PRDAT sy-vline 
WA_FMCA_INVPOS_STR-SUBNR sy-vline 
WA_FMCA_INVPOS_STR-PPACC sy-vline 
WA_FMCA_INVPOS_STR-PPPTB sy-vline 
WA_FMCA_INVPOS_STR-MNDID sy-vline 
WA_FMCA_INVPOS_STR-PNNUM sy-vline 
WA_FMCA_INVPOS_STR-PNHKF sy-vline 
WA_FMCA_INVPOS_STR-PNCTRR sy-vline 
WA_FMCA_INVPOS_STR-XTAX sy-vline 
WA_FMCA_INVPOS_STR-TAX_COUNTRY sy-vline 
WA_FMCA_INVPOS_STR-CCINS sy-vline 
WA_FMCA_INVPOS_STR-CCNUM sy-vline 
WA_FMCA_INVPOS_STR-AUNUM sy-vline 
WA_FMCA_INVPOS_STR-AUTRA sy-vline 
WA_FMCA_INVPOS_STR-AUDAT sy-vline 
WA_FMCA_INVPOS_STR-MERCH sy-vline 
WA_FMCA_INVPOS_STR-EXPDT sy-vline 
WA_FMCA_INVPOS_STR-EXPTM sy-vline 
WA_FMCA_INVPOS_STR-CGUID sy-vline 
WA_FMCA_INVPOS_STR-ENCTP sy-vline 
WA_FMCA_INVPOS_STR-MASKED_ID sy-vline 
WA_FMCA_INVPOS_STR-OBJ1R_X sy-vline 
WA_FMCA_INVPOS_STR-OBJ1X_X sy-vline 
WA_FMCA_INVPOS_STR-ABWRE_X sy-vline 
WA_FMCA_INVPOS_STR-ADRRE_X sy-vline 
WA_FMCA_INVPOS_STR-EZAWE_X sy-vline 
WA_FMCA_INVPOS_STR-EBVTY_X sy-vline 
WA_FMCA_INVPOS_STR-ABWRA_X sy-vline 
WA_FMCA_INVPOS_STR-ADRRA_X sy-vline 
WA_FMCA_INVPOS_STR-AZAWE_X sy-vline 
WA_FMCA_INVPOS_STR-ABVTY_X sy-vline 
WA_FMCA_INVPOS_STR-CCARD_ID sy-vline 
WA_FMCA_INVPOS_STR-CCARD_OUT sy-vline 
WA_FMCA_INVPOS_STR-ADRNR sy-vline 
WA_FMCA_INVPOS_STR-EIGBV_X sy-vline 
WA_FMCA_INVPOS_STR-DDLCU_X sy-vline 
WA_FMCA_INVPOS_STR-SUBAP_X sy-vline 
WA_FMCA_INVPOS_STR-MNDID_X sy-vline 
WA_FMCA_INVPOS_STR-OPBEL sy-vline 
WA_FMCA_INVPOS_STR-OPUPW sy-vline 
WA_FMCA_INVPOS_STR-OPUPK sy-vline 
WA_FMCA_INVPOS_STR-OPUPZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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