ABAP Select data from SAP table VEWAOBJH into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VEWAOBJH 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 VEWAOBJH. 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 VEWAOBJH 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_VEWAOBJH TYPE STANDARD TABLE OF VEWAOBJH,
      WA_VEWAOBJH TYPE VEWAOBJH,
      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: <VEWAOBJH> TYPE VEWAOBJH.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEWAOBJH
*  INTO TABLE @DATA(IT_VEWAOBJH2).
*--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_VEWAOBJH INDEX 1 INTO DATA(WA_VEWAOBJH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEWAOBJH>-MANDT = 1.
<VEWAOBJH>-OBJNR = 1.
<VEWAOBJH>-LAUFNR = 1.
<VEWAOBJH>-BIS = 1.
<VEWAOBJH>-AB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEWAOBJH-TIMEFRAME, sy-vline,
  WA_VEWAOBJH-DATECHANGE, sy-vline,
  WA_VEWAOBJH-STATUS_SERV, sy-vline,
  WA_VEWAOBJH-STATUS_CUST, sy-vline,
  WA_VEWAOBJH-STARTTIME, sy-vline,
  WA_VEWAOBJH-STOPTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEWAOBJH 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_VEWAOBJH 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_VEWAOBJH INTO WA_VEWAOBJH.


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

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

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

*Conversion exit MM_TT, internal->external for field SEASON_FROM
CALL FUNCTION 'CONVERSION_EXIT_MM_TT_OUTPUT'
  EXPORTING
    input =                      WA_VEWAOBJH-SEASON_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWAOBJH-SEASON_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MM_TT, internal->external for field SEASON_TO
CALL FUNCTION 'CONVERSION_EXIT_MM_TT_OUTPUT'
  EXPORTING
    input =                      WA_VEWAOBJH-SEASON_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWAOBJH-SEASON_TO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CAPACITYKIND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEWAOBJH-CAPACITYKIND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEWAOBJH-CAPACITYKIND.
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_VEWAOBJH_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
LAUFNR TYPE STRING,
BIS TYPE STRING,
AB TYPE STRING,
TIMEFRAME TYPE STRING,
DATECHANGE TYPE STRING,
STATUS_SERV TYPE STRING,
STATUS_CUST TYPE STRING,
STARTTIME TYPE STRING,
STOPTIME TYPE STRING,
CONT_COUNT TYPE STRING,
ROUTE TYPE STRING,
ROUTE_SEQUENCE TYPE STRING,
DATE_CONCRETE TYPE STRING,
PRODUCT_AREA TYPE STRING,
SEASON_FROM TYPE STRING,
SEASON_TO TYPE STRING,
CAL_ID TYPE STRING,
SFREPLACE TYPE STRING,
SERVICE_TYPE TYPE STRING,
FREQZUS TYPE STRING,
WASTE_FLAG TYPE STRING,
GGVERTRAG TYPE STRING,
ROUTE_LFNR TYPE STRING,
ROUTE_BIS TYPE STRING,
CAPACITYKIND TYPE STRING,
SERVICE_GROUP TYPE STRING,
PLANNED_TIME TYPE STRING,
PLANNED_DURT TYPE STRING,
TSL_GUID TYPE STRING,
WEEKLY TYPE STRING,
MONTHLY TYPE STRING,
MONTH_COUNT TYPE STRING,
DAY_TYPE TYPE STRING,
DAY_FLAG TYPE STRING,
WEEK_FLAG TYPE STRING,
MNTH_FLAG TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
FLAG5 TYPE STRING,
FLAG6 TYPE STRING,
FLAG7 TYPE STRING,
STARTDATE TYPE STRING,
EWEEKDAY TYPE STRING,
DAY_FREQUENCY TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEWAOBJH_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_VEWAOBJH_STR-MANDT sy-vline 
WA_VEWAOBJH_STR-OBJNR sy-vline 
WA_VEWAOBJH_STR-LAUFNR sy-vline 
WA_VEWAOBJH_STR-BIS sy-vline 
WA_VEWAOBJH_STR-AB sy-vline 
WA_VEWAOBJH_STR-TIMEFRAME sy-vline 
WA_VEWAOBJH_STR-DATECHANGE sy-vline 
WA_VEWAOBJH_STR-STATUS_SERV sy-vline 
WA_VEWAOBJH_STR-STATUS_CUST sy-vline 
WA_VEWAOBJH_STR-STARTTIME sy-vline 
WA_VEWAOBJH_STR-STOPTIME sy-vline 
WA_VEWAOBJH_STR-CONT_COUNT sy-vline 
WA_VEWAOBJH_STR-ROUTE sy-vline 
WA_VEWAOBJH_STR-ROUTE_SEQUENCE sy-vline 
WA_VEWAOBJH_STR-DATE_CONCRETE sy-vline 
WA_VEWAOBJH_STR-PRODUCT_AREA sy-vline 
WA_VEWAOBJH_STR-SEASON_FROM sy-vline 
WA_VEWAOBJH_STR-SEASON_TO sy-vline 
WA_VEWAOBJH_STR-CAL_ID sy-vline 
WA_VEWAOBJH_STR-SFREPLACE sy-vline 
WA_VEWAOBJH_STR-SERVICE_TYPE sy-vline 
WA_VEWAOBJH_STR-FREQZUS sy-vline 
WA_VEWAOBJH_STR-WASTE_FLAG sy-vline 
WA_VEWAOBJH_STR-GGVERTRAG sy-vline 
WA_VEWAOBJH_STR-ROUTE_LFNR sy-vline 
WA_VEWAOBJH_STR-ROUTE_BIS sy-vline 
WA_VEWAOBJH_STR-CAPACITYKIND sy-vline 
WA_VEWAOBJH_STR-SERVICE_GROUP sy-vline 
WA_VEWAOBJH_STR-PLANNED_TIME sy-vline 
WA_VEWAOBJH_STR-PLANNED_DURT sy-vline 
WA_VEWAOBJH_STR-TSL_GUID sy-vline 
WA_VEWAOBJH_STR-WEEKLY sy-vline 
WA_VEWAOBJH_STR-MONTHLY sy-vline 
WA_VEWAOBJH_STR-MONTH_COUNT sy-vline 
WA_VEWAOBJH_STR-DAY_TYPE sy-vline 
WA_VEWAOBJH_STR-DAY_FLAG sy-vline 
WA_VEWAOBJH_STR-WEEK_FLAG sy-vline 
WA_VEWAOBJH_STR-MNTH_FLAG sy-vline 
WA_VEWAOBJH_STR-FLAG1 sy-vline 
WA_VEWAOBJH_STR-FLAG2 sy-vline 
WA_VEWAOBJH_STR-FLAG3 sy-vline 
WA_VEWAOBJH_STR-FLAG4 sy-vline 
WA_VEWAOBJH_STR-FLAG5 sy-vline 
WA_VEWAOBJH_STR-FLAG6 sy-vline 
WA_VEWAOBJH_STR-FLAG7 sy-vline 
WA_VEWAOBJH_STR-STARTDATE sy-vline 
WA_VEWAOBJH_STR-EWEEKDAY sy-vline 
WA_VEWAOBJH_STR-DAY_FREQUENCY sy-vline 
WA_VEWAOBJH_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.