ABAP Select data from SAP table MCAFPOB into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCAFPOB
*  INTO TABLE @DATA(IT_MCAFPOB2).
*--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_MCAFPOB INDEX 1 INTO DATA(WA_MCAFPOB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCAFPOB>-SUPKZ = 1.
<MCAFPOB>-AUFNR = 1.
<MCAFPOB>-POSNR = 1.
<MCAFPOB>-MATNR = 1.
<MCAFPOB>-PWERK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCAFPOB-ETRMP, sy-vline,
  WA_MCAFPOB-STRMP, sy-vline,
  WA_MCAFPOB-LTRMP, sy-vline,
  WA_MCAFPOB-LTRMI, sy-vline,
  WA_MCAFPOB-PAMNG, sy-vline,
  WA_MCAFPOB-PGMNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCAFPOB 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_MCAFPOB 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_MCAFPOB INTO WA_MCAFPOB.


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

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MCAFPOB-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCAFPOB-PSPNR.
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_MCAFPOB_STR, 
SUPKZ TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
PWERK TYPE STRING,
ETRMP TYPE STRING,
STRMP TYPE STRING,
LTRMP TYPE STRING,
LTRMI TYPE STRING,
PAMNG TYPE STRING,
PGMNG TYPE STRING,
MEINS TYPE STRING,
MCPAMNG TYPE STRING,
MCPGMNG TYPE STRING,
PSAMG TYPE STRING,
PSMNG TYPE STRING,
WEMNG TYPE STRING,
IAMNG TYPE STRING,
AMEIN TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
DFZEH TYPE STRING,
S_DFZ TYPE STRING,
I_DFZ TYPE STRING,
KEINH TYPE STRING,
KSUMS TYPE STRING,
PLNUM TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
LGORT TYPE STRING,
SAFNR TYPE STRING,
VERID TYPE STRING,
SERNR TYPE STRING,
CHARG TYPE STRING,
GSBER TYPE STRING,
SOPNR TYPE STRING,
PLCHK1P TYPE STRING,
PLCHK2P TYPE STRING,
DFZEXEH TYPE STRING,
S_DFZ_EX TYPE STRING,
I_DFZ_EX TYPE STRING,
S_DLZ_EX TYPE STRING,
I_DLZ_EX TYPE STRING,
BUDAT TYPE STRING,
GRUND TYPE STRING,
PSPNR TYPE STRING,
P_DLZ TYPE STRING,
S_DLZ TYPE STRING,
I_DLZ TYPE STRING,
PS_FREI TYPE STRING,
PI_FREI TYPE STRING,
SI_FREI TYPE STRING,
PS_STAR TYPE STRING,
PI_STAR TYPE STRING,
SI_STAR TYPE STRING,
PS_LIEF TYPE STRING,
PI_LIEF TYPE STRING,
SI_LIEF TYPE STRING,
A TYPE STRING,
VDATU TYPE STRING,
DUMMY TYPE STRING,
SGT_RCAT TYPE STRING,
SGT_SCAT TYPE STRING,
ZEITP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCAFPOB_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_MCAFPOB_STR-SUPKZ sy-vline 
WA_MCAFPOB_STR-AUFNR sy-vline 
WA_MCAFPOB_STR-POSNR sy-vline 
WA_MCAFPOB_STR-MATNR sy-vline 
WA_MCAFPOB_STR-PWERK sy-vline 
WA_MCAFPOB_STR-ETRMP sy-vline 
WA_MCAFPOB_STR-STRMP sy-vline 
WA_MCAFPOB_STR-LTRMP sy-vline 
WA_MCAFPOB_STR-LTRMI sy-vline 
WA_MCAFPOB_STR-PAMNG sy-vline 
WA_MCAFPOB_STR-PGMNG sy-vline 
WA_MCAFPOB_STR-MEINS sy-vline 
WA_MCAFPOB_STR-MCPAMNG sy-vline 
WA_MCAFPOB_STR-MCPGMNG sy-vline 
WA_MCAFPOB_STR-PSAMG sy-vline 
WA_MCAFPOB_STR-PSMNG sy-vline 
WA_MCAFPOB_STR-WEMNG sy-vline 
WA_MCAFPOB_STR-IAMNG sy-vline 
WA_MCAFPOB_STR-AMEIN sy-vline 
WA_MCAFPOB_STR-UMREZ sy-vline 
WA_MCAFPOB_STR-UMREN sy-vline 
WA_MCAFPOB_STR-DFZEH sy-vline 
WA_MCAFPOB_STR-S_DFZ sy-vline 
WA_MCAFPOB_STR-I_DFZ sy-vline 
WA_MCAFPOB_STR-KEINH sy-vline 
WA_MCAFPOB_STR-KSUMS sy-vline 
WA_MCAFPOB_STR-PLNUM sy-vline 
WA_MCAFPOB_STR-KDAUF sy-vline 
WA_MCAFPOB_STR-KDPOS sy-vline 
WA_MCAFPOB_STR-KDEIN sy-vline 
WA_MCAFPOB_STR-LGORT sy-vline 
WA_MCAFPOB_STR-SAFNR sy-vline 
WA_MCAFPOB_STR-VERID sy-vline 
WA_MCAFPOB_STR-SERNR sy-vline 
WA_MCAFPOB_STR-CHARG sy-vline 
WA_MCAFPOB_STR-GSBER sy-vline 
WA_MCAFPOB_STR-SOPNR sy-vline 
WA_MCAFPOB_STR-PLCHK1P sy-vline 
WA_MCAFPOB_STR-PLCHK2P sy-vline 
WA_MCAFPOB_STR-DFZEXEH sy-vline 
WA_MCAFPOB_STR-S_DFZ_EX sy-vline 
WA_MCAFPOB_STR-I_DFZ_EX sy-vline 
WA_MCAFPOB_STR-S_DLZ_EX sy-vline 
WA_MCAFPOB_STR-I_DLZ_EX sy-vline 
WA_MCAFPOB_STR-BUDAT sy-vline 
WA_MCAFPOB_STR-GRUND sy-vline 
WA_MCAFPOB_STR-PSPNR sy-vline 
WA_MCAFPOB_STR-P_DLZ sy-vline 
WA_MCAFPOB_STR-S_DLZ sy-vline 
WA_MCAFPOB_STR-I_DLZ sy-vline 
WA_MCAFPOB_STR-PS_FREI sy-vline 
WA_MCAFPOB_STR-PI_FREI sy-vline 
WA_MCAFPOB_STR-SI_FREI sy-vline 
WA_MCAFPOB_STR-PS_STAR sy-vline 
WA_MCAFPOB_STR-PI_STAR sy-vline 
WA_MCAFPOB_STR-SI_STAR sy-vline 
WA_MCAFPOB_STR-PS_LIEF sy-vline 
WA_MCAFPOB_STR-PI_LIEF sy-vline 
WA_MCAFPOB_STR-SI_LIEF sy-vline 
WA_MCAFPOB_STR-A sy-vline 
WA_MCAFPOB_STR-VDATU sy-vline 
WA_MCAFPOB_STR-DUMMY sy-vline 
WA_MCAFPOB_STR-SGT_RCAT sy-vline 
WA_MCAFPOB_STR-SGT_SCAT sy-vline 
WA_MCAFPOB_STR-ZEITP sy-vline      INTO ld_text SEPARATED BY SPACE.

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