ABAP Select data from SAP table CIF_MDAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CIF_MDAM
*  INTO TABLE @DATA(IT_CIF_MDAM2).
*--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_CIF_MDAM INDEX 1 INTO DATA(WA_CIF_MDAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CIF_MDAM>-PLSCN = 1.
<CIF_MDAM>-MATNR = 1.
<CIF_MDAM>-BERID = 1.
<CIF_MDAM>-PLWRK = 1.
<CIF_MDAM>-MAKTX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CIF_MDAM-SELGP, sy-vline,
  WA_CIF_MDAM-SELGT, sy-vline,
  WA_CIF_MDAM-AUSKT, sy-vline,
  WA_CIF_MDAM-AUSLT, sy-vline,
  WA_CIF_MDAM-ASPRI, sy-vline,
  WA_CIF_MDAM-DAT00, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CIF_MDAM 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_CIF_MDAM 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_CIF_MDAM INTO WA_CIF_MDAM.


*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 MATN5, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_CIF_MDAM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIF_MDAM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CIF_MDAM-MATNR_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIF_MDAM-MATNR_LONG.
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_CIF_MDAM_STR, 
PLSCN TYPE STRING,
MATNR TYPE STRING,
BERID TYPE STRING,
PLWRK TYPE STRING,
MAKTX TYPE STRING,
SELGP TYPE STRING,
SELGT TYPE STRING,
AUSKT TYPE STRING,
AUSLT TYPE STRING,
ASPRI TYPE STRING,
DAT00 TYPE STRING,
DELB0 TYPE STRING,
EXTRA TYPE STRING,
UMDAT TYPE STRING,
MATNR_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CIF_MDAM_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_CIF_MDAM_STR-PLSCN sy-vline 
WA_CIF_MDAM_STR-MATNR sy-vline 
WA_CIF_MDAM_STR-BERID sy-vline 
WA_CIF_MDAM_STR-PLWRK sy-vline 
WA_CIF_MDAM_STR-MAKTX sy-vline 
WA_CIF_MDAM_STR-SELGP sy-vline 
WA_CIF_MDAM_STR-SELGT sy-vline 
WA_CIF_MDAM_STR-AUSKT sy-vline 
WA_CIF_MDAM_STR-AUSLT sy-vline 
WA_CIF_MDAM_STR-ASPRI sy-vline 
WA_CIF_MDAM_STR-DAT00 sy-vline 
WA_CIF_MDAM_STR-DELB0 sy-vline 
WA_CIF_MDAM_STR-EXTRA sy-vline 
WA_CIF_MDAM_STR-UMDAT sy-vline 
WA_CIF_MDAM_STR-MATNR_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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