ABAP Select data from SAP table MC05Q01ITM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MC05Q01ITM 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 MC05Q01ITM. 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 MC05Q01ITM 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_MC05Q01ITM TYPE STANDARD TABLE OF MC05Q01ITM,
      WA_MC05Q01ITM TYPE MC05Q01ITM,
      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: <MC05Q01ITM> TYPE MC05Q01ITM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MC05Q01ITM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MC05Q01ITM
  INTO TABLE IT_MC05Q01ITM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MC05Q01ITM
*  INTO TABLE @DATA(IT_MC05Q01ITM2).
*--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_MC05Q01ITM INDEX 1 INTO DATA(WA_MC05Q01ITM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MC05Q01ITM ASSIGNING <MC05Q01ITM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MC05Q01ITM>-BASIC_UNIT = 1.
<MC05Q01ITM>-EKORG = 1.
<MC05Q01ITM>-HERKZ = 1.
<MC05Q01ITM>-KUNUM = 1.
<MC05Q01ITM>-LIFNUM = 1.

ENDLOOP.

LOOP AT IT_MC05Q01ITM INTO WA_MC05Q01ITM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MC05Q01ITM-MATNR, sy-vline,
  WA_MC05Q01ITM-MAWERK, sy-vline,
  WA_MC05Q01ITM-QMART, sy-vline,
  WA_MC05Q01ITM-QMDAT, sy-vline,
  WA_MC05Q01ITM-QMNUM, sy-vline,
  WA_MC05Q01ITM-SPART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MC05Q01ITM 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_MC05Q01ITM 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_MC05Q01ITM INTO WA_MC05Q01ITM.


*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 CUNIT, internal->external for field BASIC_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC05Q01ITM-BASIC_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC05Q01ITM-BASIC_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC05Q01ITM-KUNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC05Q01ITM-KUNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC05Q01ITM-LIFNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC05Q01ITM-LIFNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MC05Q01ITM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC05Q01ITM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC05Q01ITM-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC05Q01ITM-QMNUM.
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_MC05Q01ITM_STR, 
BASIC_UNIT TYPE STRING,
EKORG TYPE STRING,
HERKZ TYPE STRING,
KUNUM TYPE STRING,
LIFNUM TYPE STRING,
MATNR TYPE STRING,
MAWERK TYPE STRING,
QMART TYPE STRING,
QMDAT TYPE STRING,
QMNUM TYPE STRING,
SPART TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MC05Q01ITM_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_MC05Q01ITM_STR-BASIC_UNIT sy-vline 
WA_MC05Q01ITM_STR-EKORG sy-vline 
WA_MC05Q01ITM_STR-HERKZ sy-vline 
WA_MC05Q01ITM_STR-KUNUM sy-vline 
WA_MC05Q01ITM_STR-LIFNUM sy-vline 
WA_MC05Q01ITM_STR-MATNR sy-vline 
WA_MC05Q01ITM_STR-MAWERK sy-vline 
WA_MC05Q01ITM_STR-QMART sy-vline 
WA_MC05Q01ITM_STR-QMDAT sy-vline 
WA_MC05Q01ITM_STR-QMNUM sy-vline 
WA_MC05Q01ITM_STR-SPART sy-vline 
WA_MC05Q01ITM_STR-VKORG sy-vline 
WA_MC05Q01ITM_STR-VTWEG sy-vline      INTO ld_text SEPARATED BY SPACE.

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