ABAP Select data from SAP table VEWA_ORDER_HEAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEWA_ORDER_HEAD
*  INTO TABLE @DATA(IT_VEWA_ORDER_HEAD2).
*--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_VEWA_ORDER_HEAD INDEX 1 INTO DATA(WA_VEWA_ORDER_HEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEWA_ORDER_HEAD>-MANDT = 1.
<VEWA_ORDER_HEAD>-ORDERNR = 1.
<VEWA_ORDER_HEAD>-ORDER_DATE = 1.
<VEWA_ORDER_HEAD>-PLANED_START = 1.
<VEWA_ORDER_HEAD>-PLANED_END = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEWA_ORDER_HEAD-CAPAB, sy-vline,
  WA_VEWA_ORDER_HEAD-ROUTE, sy-vline,
  WA_VEWA_ORDER_HEAD-WASTE_TYPE1, sy-vline,
  WA_VEWA_ORDER_HEAD-EPREM_ORDER_TARG, sy-vline,
  WA_VEWA_ORDER_HEAD-EVOL_ORDER_TARG, sy-vline,
  WA_VEWA_ORDER_HEAD-VOL_UNIT_TARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEWA_ORDER_HEAD 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_VEWA_ORDER_HEAD 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_VEWA_ORDER_HEAD INTO WA_VEWA_ORDER_HEAD.


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

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

*Conversion exit MATN1, internal->external for field WASTE_TYPE1
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_ORDER_HEAD-WASTE_TYPE1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_ORDER_HEAD-WASTE_TYPE1.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field MJAHR_SC
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_ORDER_HEAD-MJAHR_SC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_ORDER_HEAD-MJAHR_SC.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KONNRSLS_SC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWA_ORDER_HEAD-KONNRSLS_SC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWA_ORDER_HEAD-KONNRSLS_SC.
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_VEWA_ORDER_HEAD_STR, 
MANDT TYPE STRING,
ORDERNR TYPE STRING,
ORDER_DATE TYPE STRING,
PLANED_START TYPE STRING,
PLANED_END TYPE STRING,
CAPAB TYPE STRING,
ROUTE TYPE STRING,
WASTE_TYPE1 TYPE STRING,
EPREM_ORDER_TARG TYPE STRING,
EVOL_ORDER_TARG TYPE STRING,
VOL_UNIT_TARG TYPE STRING,
ECONT_ORDER_TARG TYPE STRING,
ETIME_ORDER_TARG TYPE STRING,
MEIZT_TARG TYPE STRING,
EDIST_ORDER_TARG TYPE STRING,
MEDST_TARG TYPE STRING,
EWGHT_ORDER_TARG TYPE STRING,
WEIGHT_UNIT_TARG TYPE STRING,
EORDER_STATUS TYPE STRING,
WINTERLEVEL TYPE STRING,
DIFFCULT TYPE STRING,
HOBJNR TYPE STRING,
WDPLANT TYPE STRING,
WASTE_WERKS TYPE STRING,
WASTE_LGORT TYPE STRING,
ORDERTXT TYPE STRING,
ORDERGENAREA TYPE STRING,
EBELN_SC TYPE STRING,
EBELP_SC TYPE STRING,
MBLNR_SC TYPE STRING,
MJAHR_SC TYPE STRING,
VBELN_SC TYPE STRING,
POSNR_SC TYPE STRING,
ACTUAL_DATE TYPE STRING,
ACTUAL_ROUTE TYPE STRING,
ACTUAL_START TYPE STRING,
ACTUAL_END TYPE STRING,
PAUSE TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
WERK TYPE STRING,
EVOL_ORDER_ACT TYPE STRING,
VOL_UNIT_ACT TYPE STRING,
ECONT_ORDER_ACT TYPE STRING,
ETIME_ORDER_ACT TYPE STRING,
EDIST_ORDER_ACT TYPE STRING,
MEDST_ACT TYPE STRING,
EWGHT_ORDER_ACT TYPE STRING,
WEIGHT_UNIT_ACT TYPE STRING,
KONNR_SC TYPE STRING,
KTPNR_SC TYPE STRING,
BSTMG_SC TYPE STRING,
BSTME_SC TYPE STRING,
KONNRSLS_SC TYPE STRING,
KTPNRSLS_SC TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEWA_ORDER_HEAD_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_VEWA_ORDER_HEAD_STR-MANDT sy-vline 
WA_VEWA_ORDER_HEAD_STR-ORDERNR sy-vline 
WA_VEWA_ORDER_HEAD_STR-ORDER_DATE sy-vline 
WA_VEWA_ORDER_HEAD_STR-PLANED_START sy-vline 
WA_VEWA_ORDER_HEAD_STR-PLANED_END sy-vline 
WA_VEWA_ORDER_HEAD_STR-CAPAB sy-vline 
WA_VEWA_ORDER_HEAD_STR-ROUTE sy-vline 
WA_VEWA_ORDER_HEAD_STR-WASTE_TYPE1 sy-vline 
WA_VEWA_ORDER_HEAD_STR-EPREM_ORDER_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-EVOL_ORDER_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-VOL_UNIT_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-ECONT_ORDER_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-ETIME_ORDER_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-MEIZT_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-EDIST_ORDER_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-MEDST_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-EWGHT_ORDER_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-WEIGHT_UNIT_TARG sy-vline 
WA_VEWA_ORDER_HEAD_STR-EORDER_STATUS sy-vline 
WA_VEWA_ORDER_HEAD_STR-WINTERLEVEL sy-vline 
WA_VEWA_ORDER_HEAD_STR-DIFFCULT sy-vline 
WA_VEWA_ORDER_HEAD_STR-HOBJNR sy-vline 
WA_VEWA_ORDER_HEAD_STR-WDPLANT sy-vline 
WA_VEWA_ORDER_HEAD_STR-WASTE_WERKS sy-vline 
WA_VEWA_ORDER_HEAD_STR-WASTE_LGORT sy-vline 
WA_VEWA_ORDER_HEAD_STR-ORDERTXT sy-vline 
WA_VEWA_ORDER_HEAD_STR-ORDERGENAREA sy-vline 
WA_VEWA_ORDER_HEAD_STR-EBELN_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-EBELP_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-MBLNR_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-MJAHR_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-VBELN_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-POSNR_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-ACTUAL_DATE sy-vline 
WA_VEWA_ORDER_HEAD_STR-ACTUAL_ROUTE sy-vline 
WA_VEWA_ORDER_HEAD_STR-ACTUAL_START sy-vline 
WA_VEWA_ORDER_HEAD_STR-ACTUAL_END sy-vline 
WA_VEWA_ORDER_HEAD_STR-PAUSE sy-vline 
WA_VEWA_ORDER_HEAD_STR-TEXT1 sy-vline 
WA_VEWA_ORDER_HEAD_STR-TEXT2 sy-vline 
WA_VEWA_ORDER_HEAD_STR-WERK sy-vline 
WA_VEWA_ORDER_HEAD_STR-EVOL_ORDER_ACT sy-vline 
WA_VEWA_ORDER_HEAD_STR-VOL_UNIT_ACT sy-vline 
WA_VEWA_ORDER_HEAD_STR-ECONT_ORDER_ACT sy-vline 
WA_VEWA_ORDER_HEAD_STR-ETIME_ORDER_ACT sy-vline 
WA_VEWA_ORDER_HEAD_STR-EDIST_ORDER_ACT sy-vline 
WA_VEWA_ORDER_HEAD_STR-MEDST_ACT sy-vline 
WA_VEWA_ORDER_HEAD_STR-EWGHT_ORDER_ACT sy-vline 
WA_VEWA_ORDER_HEAD_STR-WEIGHT_UNIT_ACT sy-vline 
WA_VEWA_ORDER_HEAD_STR-KONNR_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-KTPNR_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-BSTMG_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-BSTME_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-KONNRSLS_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-KTPNRSLS_SC sy-vline 
WA_VEWA_ORDER_HEAD_STR-ERDAT sy-vline 
WA_VEWA_ORDER_HEAD_STR-ERNAM sy-vline 
WA_VEWA_ORDER_HEAD_STR-AEDAT sy-vline 
WA_VEWA_ORDER_HEAD_STR-AENAM sy-vline 
WA_VEWA_ORDER_HEAD_STR-BEGRU sy-vline 
WA_VEWA_ORDER_HEAD_STR-LOEVM sy-vline 
WA_VEWA_ORDER_HEAD_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.