ABAP Select data from SAP table VCT001_MOSR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VCT001_MOSR 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 VCT001_MOSR. 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 VCT001_MOSR 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_VCT001_MOSR TYPE STANDARD TABLE OF VCT001_MOSR,
      WA_VCT001_MOSR TYPE VCT001_MOSR,
      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: <VCT001_MOSR> TYPE VCT001_MOSR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VCT001_MOSR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VCT001_MOSR
  INTO TABLE IT_VCT001_MOSR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCT001_MOSR
*  INTO TABLE @DATA(IT_VCT001_MOSR2).
*--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_VCT001_MOSR INDEX 1 INTO DATA(WA_VCT001_MOSR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VCT001_MOSR ASSIGNING <VCT001_MOSR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VCT001_MOSR>-MANDT = 1.
<VCT001_MOSR>-BUKRS = 1.
<VCT001_MOSR>-MOSSR = 1.
<VCT001_MOSR>-ADATR = 1.
<VCT001_MOSR>-EDATR = 1.

ENDLOOP.

LOOP AT IT_VCT001_MOSR INTO WA_VCT001_MOSR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VCT001_MOSR-WAERS, sy-vline,
  WA_VCT001_MOSR-UMKRS, sy-vline,
  WA_VCT001_MOSR-XUMKRS, sy-vline,
  WA_VCT001_MOSR-STCEG, sy-vline,
  WA_VCT001_MOSR-KURST, sy-vline,
  WA_VCT001_MOSR-BLART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VCT001_MOSR 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_VCT001_MOSR 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_VCT001_MOSR INTO WA_VCT001_MOSR.


*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 HKONT_ZAHL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCT001_MOSR-HKONT_ZAHL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCT001_MOSR-HKONT_ZAHL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT_RUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCT001_MOSR-HKONT_RUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCT001_MOSR-HKONT_RUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TOLER
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_VCT001_MOSR-TOLER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCT001_MOSR-TOLER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT_RUNDH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCT001_MOSR-HKONT_RUNDH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCT001_MOSR-HKONT_RUNDH.
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_VCT001_MOSR_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
MOSSR TYPE STRING,
ADATR TYPE STRING,
EDATR TYPE STRING,
WAERS TYPE STRING,
UMKRS TYPE STRING,
XUMKRS TYPE STRING,
STCEG TYPE STRING,
KURST TYPE STRING,
BLART TYPE STRING,
HKONT_ZAHL TYPE STRING,
HKONT_RUND TYPE STRING,
XMWST TYPE STRING,
TOLER TYPE STRING,
BSCHS TYPE STRING,
BSCHH TYPE STRING,
BUTXT TYPE STRING,
LANDX TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,
CURVW TYPE STRING,
HKONT_RUNDH TYPE STRING,
STCEG_IM TYPE STRING,
ACTION TYPE STRING,
MARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VCT001_MOSR_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_VCT001_MOSR_STR-MANDT sy-vline 
WA_VCT001_MOSR_STR-BUKRS sy-vline 
WA_VCT001_MOSR_STR-MOSSR sy-vline 
WA_VCT001_MOSR_STR-ADATR sy-vline 
WA_VCT001_MOSR_STR-EDATR sy-vline 
WA_VCT001_MOSR_STR-WAERS sy-vline 
WA_VCT001_MOSR_STR-UMKRS sy-vline 
WA_VCT001_MOSR_STR-XUMKRS sy-vline 
WA_VCT001_MOSR_STR-STCEG sy-vline 
WA_VCT001_MOSR_STR-KURST sy-vline 
WA_VCT001_MOSR_STR-BLART sy-vline 
WA_VCT001_MOSR_STR-HKONT_ZAHL sy-vline 
WA_VCT001_MOSR_STR-HKONT_RUND sy-vline 
WA_VCT001_MOSR_STR-XMWST sy-vline 
WA_VCT001_MOSR_STR-TOLER sy-vline 
WA_VCT001_MOSR_STR-BSCHS sy-vline 
WA_VCT001_MOSR_STR-BSCHH sy-vline 
WA_VCT001_MOSR_STR-BUTXT sy-vline 
WA_VCT001_MOSR_STR-LANDX sy-vline 
WA_VCT001_MOSR_STR-KTEXT sy-vline 
WA_VCT001_MOSR_STR-LTEXT sy-vline 
WA_VCT001_MOSR_STR-CURVW sy-vline 
WA_VCT001_MOSR_STR-HKONT_RUNDH sy-vline 
WA_VCT001_MOSR_STR-STCEG_IM sy-vline 
WA_VCT001_MOSR_STR-ACTION sy-vline 
WA_VCT001_MOSR_STR-MARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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