ABAP Select data from SAP table MCVBAPADD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCVBAPADD
*  INTO TABLE @DATA(IT_MCVBAPADD2).
*--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_MCVBAPADD INDEX 1 INTO DATA(WA_MCVBAPADD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCVBAPADD>-VDATU = 1.
<MCVBAPADD>-OAUME = 1.
<MCVBAPADD>-OAUWE = 1.
<MCVBAPADD>-OLIME = 1.
<MCVBAPADD>-OLIKW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCVBAPADD-OLIMEAU, sy-vline,
  WA_MCVBAPADD-OLIKWGES, sy-vline,
  WA_MCVBAPADD-OLIKWAU, sy-vline,
  WA_MCVBAPADD-WEBUK, sy-vline,
  WA_MCVBAPADD-ABSTP, sy-vline,
  WA_MCVBAPADD-PERIV_LF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCVBAPADD 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_MCVBAPADD 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_MCVBAPADD INTO WA_MCVBAPADD.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_MCVBAPADD_STR, 
VDATU TYPE STRING,
OAUME TYPE STRING,
OAUWE TYPE STRING,
OLIME TYPE STRING,
OLIKW TYPE STRING,
OLIMEAU TYPE STRING,
OLIKWGES TYPE STRING,
OLIKWAU TYPE STRING,
WEBUK TYPE STRING,
ABSTP TYPE STRING,
PERIV_LF TYPE STRING,
OLIKWAA TYPE STRING,
OLIKWAUAA TYPE STRING,
OLIKWAUGES TYPE STRING,
KFKIV TYPE STRING,
KWMENG_ORG TYPE STRING,
NETWR_VME TYPE STRING,
NETWR_B TYPE STRING,
KWMENG_B TYPE STRING,
OLINWAU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCVBAPADD_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_MCVBAPADD_STR-VDATU sy-vline 
WA_MCVBAPADD_STR-OAUME sy-vline 
WA_MCVBAPADD_STR-OAUWE sy-vline 
WA_MCVBAPADD_STR-OLIME sy-vline 
WA_MCVBAPADD_STR-OLIKW sy-vline 
WA_MCVBAPADD_STR-OLIMEAU sy-vline 
WA_MCVBAPADD_STR-OLIKWGES sy-vline 
WA_MCVBAPADD_STR-OLIKWAU sy-vline 
WA_MCVBAPADD_STR-WEBUK sy-vline 
WA_MCVBAPADD_STR-ABSTP sy-vline 
WA_MCVBAPADD_STR-PERIV_LF sy-vline 
WA_MCVBAPADD_STR-OLIKWAA sy-vline 
WA_MCVBAPADD_STR-OLIKWAUAA sy-vline 
WA_MCVBAPADD_STR-OLIKWAUGES sy-vline 
WA_MCVBAPADD_STR-KFKIV sy-vline 
WA_MCVBAPADD_STR-KWMENG_ORG sy-vline 
WA_MCVBAPADD_STR-NETWR_VME sy-vline 
WA_MCVBAPADD_STR-NETWR_B sy-vline 
WA_MCVBAPADD_STR-KWMENG_B sy-vline 
WA_MCVBAPADD_STR-OLINWAU sy-vline      INTO ld_text SEPARATED BY SPACE.

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