ABAP Select data from SAP table VJHAEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VJHAEW
*  INTO TABLE @DATA(IT_VJHAEW2).
*--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_VJHAEW INDEX 1 INTO DATA(WA_VJHAEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VJHAEW>-MANDT = 1.
<VJHAEW>-AVM_NR = 1.
<VJHAEW>-POS_NR = 1.
<VJHAEW>-UPOS_NR = 1.
<VJHAEW>-EIN_NR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VJHAEW-UR_BELEINH, sy-vline,
  WA_VJHAEW-BELEGEINH, sy-vline,
  WA_VJHAEW-XEINAENDER, sy-vline,
  WA_VJHAEW-S_TERMIN, sy-vline,
  WA_VJHAEW-WS_TIMESLC, sy-vline,
  WA_VJHAEW-WS_BLOCK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VJHAEW 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_VJHAEW 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_VJHAEW INTO WA_VJHAEW.


*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_VJHAEW-AVM_NR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJHAEW-AVM_NR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BELEGEINH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VJHAEW-BELEGEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJHAEW-BELEGEINH.
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_VJHAEW_STR, 
MANDT TYPE STRING,
AVM_NR TYPE STRING,
POS_NR TYPE STRING,
UPOS_NR TYPE STRING,
EIN_NR TYPE STRING,
UR_BELEINH TYPE STRING,
BELEGEINH TYPE STRING,
XEINAENDER TYPE STRING,
S_TERMIN TYPE STRING,
WS_TIMESLC TYPE STRING,
WS_BLOCK TYPE STRING,
WS_STELLE TYPE STRING,
E_TERMIN TYPE STRING,
WS_TIMESLI TYPE STRING,
WS_BLOCKI TYPE STRING,
WS_STELLEI TYPE STRING,
GFK_CODE TYPE STRING,
WS_SENDUNG TYPE STRING,
WS_TARIFGR TYPE STRING,
XERSCH 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,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VJHAEW_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_VJHAEW_STR-MANDT sy-vline 
WA_VJHAEW_STR-AVM_NR sy-vline 
WA_VJHAEW_STR-POS_NR sy-vline 
WA_VJHAEW_STR-UPOS_NR sy-vline 
WA_VJHAEW_STR-EIN_NR sy-vline 
WA_VJHAEW_STR-UR_BELEINH sy-vline 
WA_VJHAEW_STR-BELEGEINH sy-vline 
WA_VJHAEW_STR-XEINAENDER sy-vline 
WA_VJHAEW_STR-S_TERMIN sy-vline 
WA_VJHAEW_STR-WS_TIMESLC sy-vline 
WA_VJHAEW_STR-WS_BLOCK sy-vline 
WA_VJHAEW_STR-WS_STELLE sy-vline 
WA_VJHAEW_STR-E_TERMIN sy-vline 
WA_VJHAEW_STR-WS_TIMESLI sy-vline 
WA_VJHAEW_STR-WS_BLOCKI sy-vline 
WA_VJHAEW_STR-WS_STELLEI sy-vline 
WA_VJHAEW_STR-GFK_CODE sy-vline 
WA_VJHAEW_STR-WS_SENDUNG sy-vline 
WA_VJHAEW_STR-WS_TARIFGR sy-vline 
WA_VJHAEW_STR-XERSCH sy-vline 
WA_VJHAEW_STR-MERKMAL0 sy-vline 
WA_VJHAEW_STR-MERKMAL1 sy-vline 
WA_VJHAEW_STR-MERKMAL2 sy-vline 
WA_VJHAEW_STR-MERKMAL3 sy-vline 
WA_VJHAEW_STR-MERKMAL4 sy-vline 
WA_VJHAEW_STR-MERKMAL5 sy-vline 
WA_VJHAEW_STR-MERKMAL6 sy-vline 
WA_VJHAEW_STR-MERKMAL7 sy-vline 
WA_VJHAEW_STR-MERKMAL8 sy-vline 
WA_VJHAEW_STR-MERKMAL9 sy-vline 
WA_VJHAEW_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.