ABAP Select data from SAP table VJHAPV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VJHAPV
*  INTO TABLE @DATA(IT_VJHAPV2).
*--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_VJHAPV INDEX 1 INTO DATA(WA_VJHAPV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VJHAPV>-MANDT = 1.
<VJHAPV>-AVM_NR = 1.
<VJHAPV>-POS_NR = 1.
<VJHAPV>-JVTBEPMART = 1.
<VJHAPV>-VRTMENGE_V = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VJHAPV-VRTMENGE, sy-vline,
  WA_VJHAPV-BERMENGE, sy-vline,
  WA_VJHAPV-XBERMENGE_FIX, sy-vline,
  WA_VJHAPV-BLGMENGE, sy-vline,
  WA_VJHAPV-XTBEL_VT, sy-vline,
  WA_VJHAPV-SI_TYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VJHAPV 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_VJHAPV 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_VJHAPV INTO WA_VJHAPV.


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

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

*Conversion exit TERMT, internal->external for field TERM_TYP
CALL FUNCTION 'CONVERSION_EXIT_TERMT_OUTPUT'
  EXPORTING
    input =                      WA_VJHAPV-TERM_TYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJHAPV-TERM_TYP.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field INHK_KFM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VJHAPV-INHK_KFM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJHAPV-INHK_KFM.
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_VJHAPV_STR, 
MANDT TYPE STRING,
AVM_NR TYPE STRING,
POS_NR TYPE STRING,
JVTBEPMART TYPE STRING,
VRTMENGE_V TYPE STRING,
VRTMENGE TYPE STRING,
BERMENGE TYPE STRING,
XBERMENGE_FIX TYPE STRING,
BLGMENGE TYPE STRING,
XTBEL_VT TYPE STRING,
SI_TYP TYPE STRING,
SI_GEWICHT TYPE STRING,
MEINHGEWBL TYPE STRING,
SI_ENTSPFL TYPE STRING,
SI_VERBWER TYPE STRING,
ANZSEITEN TYPE STRING,
TERM_TYP TYPE STRING,
ANFANG_PER TYPE STRING,
ENDE_PER TYPE STRING,
SELDAT_VON TYPE STRING,
SELDAT_BIS TYPE STRING,
BIS_PLUS TYPE STRING,
ANZ_SCHALT TYPE STRING,
TERM_ZYKL TYPE STRING,
TERMINART TYPE STRING,
ERSCH_T TYPE STRING,
WUNSCH_T TYPE STRING,
X_MONTAG TYPE STRING,
X_DIENSTAG TYPE STRING,
X_MITTWOCH TYPE STRING,
X_DONNERST TYPE STRING,
X_FREITAG TYPE STRING,
X_SAMSTAG TYPE STRING,
X_SONNTAG TYPE STRING,
XUVSI TYPE STRING,
XVT_PLAZ TYPE STRING,
XMUSTER_OK TYPE STRING,
XSI_VORH TYPE STRING,
XUVTECH TYPE STRING,
XTECH_MIN1 TYPE STRING,
XTECH_EE TYPE STRING,
MERKMAL0 TYPE STRING,
MERKMAL1 TYPE STRING,
MERKMAL2 TYPE STRING,
MERKMAL3 TYPE STRING,
MERKMAL4 TYPE STRING,
MERKMAL5 TYPE STRING,
MERKMAL6 TYPE STRING,
MERKMAL7 TYPE STRING,
MERKMAL8 TYPE STRING,
MERKMAL9 TYPE STRING,
KONKAUS TYPE STRING,
KONKAUSKOM TYPE STRING,
PRODH TYPE STRING,
SORTWORT TYPE STRING,
STICHW TYPE STRING,
INHK_KFM TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VJHAPV_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_VJHAPV_STR-MANDT sy-vline 
WA_VJHAPV_STR-AVM_NR sy-vline 
WA_VJHAPV_STR-POS_NR sy-vline 
WA_VJHAPV_STR-JVTBEPMART sy-vline 
WA_VJHAPV_STR-VRTMENGE_V sy-vline 
WA_VJHAPV_STR-VRTMENGE sy-vline 
WA_VJHAPV_STR-BERMENGE sy-vline 
WA_VJHAPV_STR-XBERMENGE_FIX sy-vline 
WA_VJHAPV_STR-BLGMENGE sy-vline 
WA_VJHAPV_STR-XTBEL_VT sy-vline 
WA_VJHAPV_STR-SI_TYP sy-vline 
WA_VJHAPV_STR-SI_GEWICHT sy-vline 
WA_VJHAPV_STR-MEINHGEWBL sy-vline 
WA_VJHAPV_STR-SI_ENTSPFL sy-vline 
WA_VJHAPV_STR-SI_VERBWER sy-vline 
WA_VJHAPV_STR-ANZSEITEN sy-vline 
WA_VJHAPV_STR-TERM_TYP sy-vline 
WA_VJHAPV_STR-ANFANG_PER sy-vline 
WA_VJHAPV_STR-ENDE_PER sy-vline 
WA_VJHAPV_STR-SELDAT_VON sy-vline 
WA_VJHAPV_STR-SELDAT_BIS sy-vline 
WA_VJHAPV_STR-BIS_PLUS sy-vline 
WA_VJHAPV_STR-ANZ_SCHALT sy-vline 
WA_VJHAPV_STR-TERM_ZYKL sy-vline 
WA_VJHAPV_STR-TERMINART sy-vline 
WA_VJHAPV_STR-ERSCH_T sy-vline 
WA_VJHAPV_STR-WUNSCH_T sy-vline 
WA_VJHAPV_STR-X_MONTAG sy-vline 
WA_VJHAPV_STR-X_DIENSTAG sy-vline 
WA_VJHAPV_STR-X_MITTWOCH sy-vline 
WA_VJHAPV_STR-X_DONNERST sy-vline 
WA_VJHAPV_STR-X_FREITAG sy-vline 
WA_VJHAPV_STR-X_SAMSTAG sy-vline 
WA_VJHAPV_STR-X_SONNTAG sy-vline 
WA_VJHAPV_STR-XUVSI sy-vline 
WA_VJHAPV_STR-XVT_PLAZ sy-vline 
WA_VJHAPV_STR-XMUSTER_OK sy-vline 
WA_VJHAPV_STR-XSI_VORH sy-vline 
WA_VJHAPV_STR-XUVTECH sy-vline 
WA_VJHAPV_STR-XTECH_MIN1 sy-vline 
WA_VJHAPV_STR-XTECH_EE sy-vline 
WA_VJHAPV_STR-MERKMAL0 sy-vline 
WA_VJHAPV_STR-MERKMAL1 sy-vline 
WA_VJHAPV_STR-MERKMAL2 sy-vline 
WA_VJHAPV_STR-MERKMAL3 sy-vline 
WA_VJHAPV_STR-MERKMAL4 sy-vline 
WA_VJHAPV_STR-MERKMAL5 sy-vline 
WA_VJHAPV_STR-MERKMAL6 sy-vline 
WA_VJHAPV_STR-MERKMAL7 sy-vline 
WA_VJHAPV_STR-MERKMAL8 sy-vline 
WA_VJHAPV_STR-MERKMAL9 sy-vline 
WA_VJHAPV_STR-KONKAUS sy-vline 
WA_VJHAPV_STR-KONKAUSKOM sy-vline 
WA_VJHAPV_STR-PRODH sy-vline 
WA_VJHAPV_STR-SORTWORT sy-vline 
WA_VJHAPV_STR-STICHW sy-vline 
WA_VJHAPV_STR-INHK_KFM sy-vline 
WA_VJHAPV_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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