ABAP Select data from SAP table VDB_FPM_DOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDB_FPM_DOC
*  INTO TABLE @DATA(IT_VDB_FPM_DOC2).
*--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_VDB_FPM_DOC INDEX 1 INTO DATA(WA_VDB_FPM_DOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDB_FPM_DOC>-MANDT = 1.
<VDB_FPM_DOC>-PLVAR = 1.
<VDB_FPM_DOC>-OTYPE = 1.
<VDB_FPM_DOC>-OBJID = 1.
<VDB_FPM_DOC>-ENC_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDB_FPM_DOC-DATBI, sy-vline,
  WA_VDB_FPM_DOC-ENDDA_KEY, sy-vline,
  WA_VDB_FPM_DOC-AEDTM, sy-vline,
  WA_VDB_FPM_DOC-ERLKZ_DOC, sy-vline,
  WA_VDB_FPM_DOC-FPM_POSNR, sy-vline,
  WA_VDB_FPM_DOC-PLVAR_DP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDB_FPM_DOC 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_VDB_FPM_DOC 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_VDB_FPM_DOC INTO WA_VDB_FPM_DOC.


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

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

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

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_VDB_FPM_DOC-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDB_FPM_DOC-POSNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_VDB_FPM_DOC-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDB_FPM_DOC-VORNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_VDB_FPM_DOC-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDB_FPM_DOC-FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDB_FPM_DOC-SEGMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDB_FPM_DOC-SEGMT.
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_VDB_FPM_DOC_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
ENC_TYPE TYPE STRING,
DATBI TYPE STRING,
ENDDA_KEY TYPE STRING,
AEDTM TYPE STRING,
ERLKZ_DOC TYPE STRING,
FPM_POSNR TYPE STRING,
PLVAR_DP TYPE STRING,
OTYPE_DP TYPE STRING,
OBJID_DP TYPE STRING,
ENC_TYPE_DP TYPE STRING,
DATBI_DP TYPE STRING,
ENDDA_KEY_DP TYPE STRING,
FPM_POSNR_DP TYPE STRING,
ENC_TYPE_MP TYPE STRING,
BELNR_MP TYPE STRING,
FPM_POSNR_MP TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
BETRG TYPE STRING,
WAERS TYPE STRING,
DUE_DATE TYPE STRING,
PERIO TYPE STRING,
SAKNR TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
GRANT_NBR TYPE STRING,
GEBER TYPE STRING,
FKBER TYPE STRING,
FISTL TYPE STRING,
FIPEX TYPE STRING,
STATUS TYPE STRING,
ERLKZ_POS TYPE STRING,
DELTA_AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
DB_ACTION TYPE STRING,
NEGATIVE_CMMTNT TYPE STRING,
REQUEST_ID TYPE STRING,
CLOSED TYPE STRING,
PAYAREA TYPE STRING,
FLEXDIM TYPE STRING,
BUDGET_PD TYPE STRING,
COSTITEM TYPE STRING,
GSBER TYPE STRING,
SEGMT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDB_FPM_DOC_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_VDB_FPM_DOC_STR-MANDT sy-vline 
WA_VDB_FPM_DOC_STR-PLVAR sy-vline 
WA_VDB_FPM_DOC_STR-OTYPE sy-vline 
WA_VDB_FPM_DOC_STR-OBJID sy-vline 
WA_VDB_FPM_DOC_STR-ENC_TYPE sy-vline 
WA_VDB_FPM_DOC_STR-DATBI sy-vline 
WA_VDB_FPM_DOC_STR-ENDDA_KEY sy-vline 
WA_VDB_FPM_DOC_STR-AEDTM sy-vline 
WA_VDB_FPM_DOC_STR-ERLKZ_DOC sy-vline 
WA_VDB_FPM_DOC_STR-FPM_POSNR sy-vline 
WA_VDB_FPM_DOC_STR-PLVAR_DP sy-vline 
WA_VDB_FPM_DOC_STR-OTYPE_DP sy-vline 
WA_VDB_FPM_DOC_STR-OBJID_DP sy-vline 
WA_VDB_FPM_DOC_STR-ENC_TYPE_DP sy-vline 
WA_VDB_FPM_DOC_STR-DATBI_DP sy-vline 
WA_VDB_FPM_DOC_STR-ENDDA_KEY_DP sy-vline 
WA_VDB_FPM_DOC_STR-FPM_POSNR_DP sy-vline 
WA_VDB_FPM_DOC_STR-ENC_TYPE_MP sy-vline 
WA_VDB_FPM_DOC_STR-BELNR_MP sy-vline 
WA_VDB_FPM_DOC_STR-FPM_POSNR_MP sy-vline 
WA_VDB_FPM_DOC_STR-BEGDA sy-vline 
WA_VDB_FPM_DOC_STR-ENDDA sy-vline 
WA_VDB_FPM_DOC_STR-BETRG sy-vline 
WA_VDB_FPM_DOC_STR-WAERS sy-vline 
WA_VDB_FPM_DOC_STR-DUE_DATE sy-vline 
WA_VDB_FPM_DOC_STR-PERIO sy-vline 
WA_VDB_FPM_DOC_STR-SAKNR sy-vline 
WA_VDB_FPM_DOC_STR-BUKRS sy-vline 
WA_VDB_FPM_DOC_STR-KOKRS sy-vline 
WA_VDB_FPM_DOC_STR-KOSTL sy-vline 
WA_VDB_FPM_DOC_STR-AUFNR sy-vline 
WA_VDB_FPM_DOC_STR-POSNR sy-vline 
WA_VDB_FPM_DOC_STR-NPLNR sy-vline 
WA_VDB_FPM_DOC_STR-VORNR sy-vline 
WA_VDB_FPM_DOC_STR-GRANT_NBR sy-vline 
WA_VDB_FPM_DOC_STR-GEBER sy-vline 
WA_VDB_FPM_DOC_STR-FKBER sy-vline 
WA_VDB_FPM_DOC_STR-FISTL sy-vline 
WA_VDB_FPM_DOC_STR-FIPEX sy-vline 
WA_VDB_FPM_DOC_STR-STATUS sy-vline 
WA_VDB_FPM_DOC_STR-ERLKZ_POS sy-vline 
WA_VDB_FPM_DOC_STR-DELTA_AMOUNT sy-vline 
WA_VDB_FPM_DOC_STR-CURRENCY sy-vline 
WA_VDB_FPM_DOC_STR-DB_ACTION sy-vline 
WA_VDB_FPM_DOC_STR-NEGATIVE_CMMTNT sy-vline 
WA_VDB_FPM_DOC_STR-REQUEST_ID sy-vline 
WA_VDB_FPM_DOC_STR-CLOSED sy-vline 
WA_VDB_FPM_DOC_STR-PAYAREA sy-vline 
WA_VDB_FPM_DOC_STR-FLEXDIM sy-vline 
WA_VDB_FPM_DOC_STR-BUDGET_PD sy-vline 
WA_VDB_FPM_DOC_STR-COSTITEM sy-vline 
WA_VDB_FPM_DOC_STR-GSBER sy-vline 
WA_VDB_FPM_DOC_STR-SEGMT sy-vline      INTO ld_text SEPARATED BY SPACE.

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