ABAP Select data from SAP table CIF_MATCUO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CIF_MATCUO 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_MATCUO. 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_MATCUO 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_MATCUO TYPE STANDARD TABLE OF CIF_MATCUO,
      WA_CIF_MATCUO TYPE CIF_MATCUO,
      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_MATCUO> TYPE CIF_MATCUO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CIF_MATCUO
*  INTO TABLE @DATA(IT_CIF_MATCUO2).
*--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_MATCUO INDEX 1 INTO DATA(WA_CIF_MATCUO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CIF_MATCUO>-MATNR = 1.
<CIF_MATCUO>-WERKS = 1.
<CIF_MATCUO>-CUOBJ = 1.
<CIF_MATCUO>-CUOBJ_TYPE = 1.
<CIF_MATCUO>-CUOBJ_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CIF_MATCUO-KLART, sy-vline,
  WA_CIF_MATCUO-CLASS, sy-vline,
  WA_CIF_MATCUO-ATINN, sy-vline,
  WA_CIF_MATCUO-ATNAM, sy-vline,
  WA_CIF_MATCUO-ATBEZ, sy-vline,
  WA_CIF_MATCUO-ATZHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CIF_MATCUO 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_MATCUO 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_MATCUO INTO WA_CIF_MATCUO.


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

*Conversion exit ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_CIF_MATCUO-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIF_MATCUO-ATINN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field ATAW1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CIF_MATCUO-ATAW1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIF_MATCUO-ATAW1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CIF_MATCUO-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIF_MATCUO-DOKNR.
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_MATCUO_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
CUOBJ TYPE STRING,
CUOBJ_TYPE TYPE STRING,
CUOBJ_ID TYPE STRING,
KLART TYPE STRING,
CLASS TYPE STRING,
ATINN TYPE STRING,
ATNAM TYPE STRING,
ATBEZ TYPE STRING,
ATZHL TYPE STRING,
ATWRT TYPE STRING,
ATWTB TYPE STRING,
ATFLV TYPE STRING,
ATAWE TYPE STRING,
ATFLB TYPE STRING,
ATAW1 TYPE STRING,
ATCOD TYPE STRING,
ATTLV TYPE STRING,
ATTLB TYPE STRING,
ATPRZ TYPE STRING,
ATINC TYPE STRING,
KNOBJ TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
ATWHI TYPE STRING,
ATZIS TYPE STRING,
ATSRT TYPE STRING,
ATFOR TYPE STRING,
METHOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CIF_MATCUO_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_MATCUO_STR-MATNR sy-vline 
WA_CIF_MATCUO_STR-WERKS sy-vline 
WA_CIF_MATCUO_STR-CUOBJ sy-vline 
WA_CIF_MATCUO_STR-CUOBJ_TYPE sy-vline 
WA_CIF_MATCUO_STR-CUOBJ_ID sy-vline 
WA_CIF_MATCUO_STR-KLART sy-vline 
WA_CIF_MATCUO_STR-CLASS sy-vline 
WA_CIF_MATCUO_STR-ATINN sy-vline 
WA_CIF_MATCUO_STR-ATNAM sy-vline 
WA_CIF_MATCUO_STR-ATBEZ sy-vline 
WA_CIF_MATCUO_STR-ATZHL sy-vline 
WA_CIF_MATCUO_STR-ATWRT sy-vline 
WA_CIF_MATCUO_STR-ATWTB sy-vline 
WA_CIF_MATCUO_STR-ATFLV sy-vline 
WA_CIF_MATCUO_STR-ATAWE sy-vline 
WA_CIF_MATCUO_STR-ATFLB sy-vline 
WA_CIF_MATCUO_STR-ATAW1 sy-vline 
WA_CIF_MATCUO_STR-ATCOD sy-vline 
WA_CIF_MATCUO_STR-ATTLV sy-vline 
WA_CIF_MATCUO_STR-ATTLB sy-vline 
WA_CIF_MATCUO_STR-ATPRZ sy-vline 
WA_CIF_MATCUO_STR-ATINC sy-vline 
WA_CIF_MATCUO_STR-KNOBJ sy-vline 
WA_CIF_MATCUO_STR-DOKAR sy-vline 
WA_CIF_MATCUO_STR-DOKNR sy-vline 
WA_CIF_MATCUO_STR-DOKVR sy-vline 
WA_CIF_MATCUO_STR-DOKTL sy-vline 
WA_CIF_MATCUO_STR-ATWHI sy-vline 
WA_CIF_MATCUO_STR-ATZIS sy-vline 
WA_CIF_MATCUO_STR-ATSRT sy-vline 
WA_CIF_MATCUO_STR-ATFOR sy-vline 
WA_CIF_MATCUO_STR-METHOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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