ABAP Select data from SAP table V_001_B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_001_B 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 V_001_B. 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 V_001_B 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_V_001_B TYPE STANDARD TABLE OF V_001_B,
      WA_V_001_B TYPE V_001_B,
      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: <V_001_B> TYPE V_001_B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_001_B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_001_B
  INTO TABLE IT_V_001_B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_001_B
*  INTO TABLE @DATA(IT_V_001_B2).
*--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_V_001_B INDEX 1 INTO DATA(WA_V_001_B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_001_B ASSIGNING <V_001_B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_001_B>-MANDT = 1.
<V_001_B>-BUKRS = 1.
<V_001_B>-BUTXT = 1.
<V_001_B>-ORT01 = 1.
<V_001_B>-LAND1 = 1.

ENDLOOP.

LOOP AT IT_V_001_B INTO WA_V_001_B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_001_B-WAERS, sy-vline,
  WA_V_001_B-SPRAS, sy-vline,
  WA_V_001_B-KTOPL, sy-vline,
  WA_V_001_B-KTPLT, sy-vline,
  WA_V_001_B-BUVAR, sy-vline,
  WA_V_001_B-XFDIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_001_B 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_V_001_B 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_V_001_B INTO WA_V_001_B.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_V_001_B-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_001_B-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_001_B-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_001_B-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_001_B-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_001_B-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFMT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_001_B-INFMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_001_B-INFMT.
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_V_001_B_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
ORT01 TYPE STRING,
LAND1 TYPE STRING,
WAERS TYPE STRING,
SPRAS TYPE STRING,
KTOPL TYPE STRING,
KTPLT TYPE STRING,
BUVAR TYPE STRING,
XFDIS TYPE STRING,
WAABW TYPE STRING,
XVALV TYPE STRING,
XSKFN TYPE STRING,
KKBER TYPE STRING,
XMWSN TYPE STRING,
PERIV TYPE STRING,
LTEXT TYPE STRING,
KOKFI TYPE STRING,
MREGL TYPE STRING,
XGSBE TYPE STRING,
XGJRV TYPE STRING,
XKDFT TYPE STRING,
RCOMP TYPE STRING,
XPROD TYPE STRING,
ADRNR TYPE STRING,
XEINK TYPE STRING,
NAME1 TYPE STRING,
KKBTX TYPE STRING,
STCEG TYPE STRING,
XJVAA TYPE STRING,
XVVWA TYPE STRING,
XSLTA TYPE STRING,
FIKRS TYPE STRING,
XEXTB TYPE STRING,
BUKRS_GLOB TYPE STRING,
KTOP2 TYPE STRING,
FSTVA TYPE STRING,
OPVAR TYPE STRING,
XFMCO TYPE STRING,
XCOVR TYPE STRING,
TXKRS TYPE STRING,
WFVAR TYPE STRING,
XNEGP TYPE STRING,
INFMT TYPE STRING,
XCOS TYPE STRING,
XSPLT TYPE STRING,
XVATDATE TYPE STRING,
PST_PER_VAR TYPE STRING,
F_OBSOLETE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_001_B_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_V_001_B_STR-MANDT sy-vline 
WA_V_001_B_STR-BUKRS sy-vline 
WA_V_001_B_STR-BUTXT sy-vline 
WA_V_001_B_STR-ORT01 sy-vline 
WA_V_001_B_STR-LAND1 sy-vline 
WA_V_001_B_STR-WAERS sy-vline 
WA_V_001_B_STR-SPRAS sy-vline 
WA_V_001_B_STR-KTOPL sy-vline 
WA_V_001_B_STR-KTPLT sy-vline 
WA_V_001_B_STR-BUVAR sy-vline 
WA_V_001_B_STR-XFDIS sy-vline 
WA_V_001_B_STR-WAABW sy-vline 
WA_V_001_B_STR-XVALV sy-vline 
WA_V_001_B_STR-XSKFN sy-vline 
WA_V_001_B_STR-KKBER sy-vline 
WA_V_001_B_STR-XMWSN sy-vline 
WA_V_001_B_STR-PERIV sy-vline 
WA_V_001_B_STR-LTEXT sy-vline 
WA_V_001_B_STR-KOKFI sy-vline 
WA_V_001_B_STR-MREGL sy-vline 
WA_V_001_B_STR-XGSBE sy-vline 
WA_V_001_B_STR-XGJRV sy-vline 
WA_V_001_B_STR-XKDFT sy-vline 
WA_V_001_B_STR-RCOMP sy-vline 
WA_V_001_B_STR-XPROD sy-vline 
WA_V_001_B_STR-ADRNR sy-vline 
WA_V_001_B_STR-XEINK sy-vline 
WA_V_001_B_STR-NAME1 sy-vline 
WA_V_001_B_STR-KKBTX sy-vline 
WA_V_001_B_STR-STCEG sy-vline 
WA_V_001_B_STR-XJVAA sy-vline 
WA_V_001_B_STR-XVVWA sy-vline 
WA_V_001_B_STR-XSLTA sy-vline 
WA_V_001_B_STR-FIKRS sy-vline 
WA_V_001_B_STR-XEXTB sy-vline 
WA_V_001_B_STR-BUKRS_GLOB sy-vline 
WA_V_001_B_STR-KTOP2 sy-vline 
WA_V_001_B_STR-FSTVA sy-vline 
WA_V_001_B_STR-OPVAR sy-vline 
WA_V_001_B_STR-XFMCO sy-vline 
WA_V_001_B_STR-XCOVR sy-vline 
WA_V_001_B_STR-TXKRS sy-vline 
WA_V_001_B_STR-WFVAR sy-vline 
WA_V_001_B_STR-XNEGP sy-vline 
WA_V_001_B_STR-INFMT sy-vline 
WA_V_001_B_STR-XCOS sy-vline 
WA_V_001_B_STR-XSPLT sy-vline 
WA_V_001_B_STR-XVATDATE sy-vline 
WA_V_001_B_STR-PST_PER_VAR sy-vline 
WA_V_001_B_STR-F_OBSOLETE sy-vline      INTO ld_text SEPARATED BY SPACE.

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