ABAP Select data from SAP table VNWAT_SCO_WIKRAF into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VNWAT_SCO_WIKRAF
*  INTO TABLE @DATA(IT_VNWAT_SCO_WIKRAF2).
*--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_VNWAT_SCO_WIKRAF INDEX 1 INTO DATA(WA_VNWAT_SCO_WIKRAF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VNWAT_SCO_WIKRAF ASSIGNING <VNWAT_SCO_WIKRAF>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<VNWAT_SCO_WIKRAF>-MANDT = 1.
<VNWAT_SCO_WIKRAF>-EINRI = 1.
<VNWAT_SCO_WIKRAF>-FALNR = 1.
<VNWAT_SCO_WIKRAF>-LFDNR = 1.
<VNWAT_SCO_WIKRAF>-KUBD1 = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VNWAT_SCO_WIKRAF-PROZ1, sy-vline,
WA_VNWAT_SCO_WIKRAF-KUBD2, sy-vline,
WA_VNWAT_SCO_WIKRAF-PROZ2, sy-vline,
WA_VNWAT_SCO_WIKRAF-ERDAT, sy-vline,
WA_VNWAT_SCO_WIKRAF-ERTIM, sy-vline,
WA_VNWAT_SCO_WIKRAF-ERUSR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_VNWAT_SCO_WIKRAF 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_VNWAT_SCO_WIKRAF 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_VNWAT_SCO_WIKRAF INTO WA_VNWAT_SCO_WIKRAF. *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 EINRI CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VNWAT_SCO_WIKRAF-EINRI IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VNWAT_SCO_WIKRAF-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VNWAT_SCO_WIKRAF-FALNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VNWAT_SCO_WIKRAF-FALNR.
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_VNWAT_SCO_WIKRAF_STR,
MANDT TYPE STRING,
EINRI TYPE STRING,
FALNR TYPE STRING,
LFDNR TYPE STRING,
KUBD1 TYPE STRING,
PROZ1 TYPE STRING,
KUBD2 TYPE STRING,
PROZ2 TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
UPUSR TYPE STRING,
STORN TYPE STRING,
STDAT TYPE STRING,
STTIM TYPE STRING,
STUSR TYPE STRING,
KUEDT TYPE STRING,
LFDVV TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR. DATA: WA_VNWAT_SCO_WIKRAF_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_VNWAT_SCO_WIKRAF_STR-MANDT sy-vline
WA_VNWAT_SCO_WIKRAF_STR-EINRI sy-vline
WA_VNWAT_SCO_WIKRAF_STR-FALNR sy-vline
WA_VNWAT_SCO_WIKRAF_STR-LFDNR sy-vline
WA_VNWAT_SCO_WIKRAF_STR-KUBD1 sy-vline
WA_VNWAT_SCO_WIKRAF_STR-PROZ1 sy-vline
WA_VNWAT_SCO_WIKRAF_STR-KUBD2 sy-vline
WA_VNWAT_SCO_WIKRAF_STR-PROZ2 sy-vline
WA_VNWAT_SCO_WIKRAF_STR-ERDAT sy-vline
WA_VNWAT_SCO_WIKRAF_STR-ERTIM sy-vline
WA_VNWAT_SCO_WIKRAF_STR-ERUSR sy-vline
WA_VNWAT_SCO_WIKRAF_STR-UPDAT sy-vline
WA_VNWAT_SCO_WIKRAF_STR-UPTIM sy-vline
WA_VNWAT_SCO_WIKRAF_STR-UPUSR sy-vline
WA_VNWAT_SCO_WIKRAF_STR-STORN sy-vline
WA_VNWAT_SCO_WIKRAF_STR-STDAT sy-vline
WA_VNWAT_SCO_WIKRAF_STR-STTIM sy-vline
WA_VNWAT_SCO_WIKRAF_STR-STUSR sy-vline
WA_VNWAT_SCO_WIKRAF_STR-KUEDT sy-vline
WA_VNWAT_SCO_WIKRAF_STR-LFDVV sy-vline
WA_VNWAT_SCO_WIKRAF_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.