ABAP Select data from SAP table WINVESTBUY 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 WINVESTBUY 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 WINVESTBUY. 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 WINVESTBUY 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_WINVESTBUY TYPE STANDARD TABLE OF WINVESTBUY,
      WA_WINVESTBUY TYPE WINVESTBUY,
      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: <WINVESTBUY> TYPE WINVESTBUY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WINVESTBUY
*  INTO TABLE @DATA(IT_WINVESTBUY2).
*--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_WINVESTBUY INDEX 1 INTO DATA(WA_WINVESTBUY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WINVESTBUY ASSIGNING <WINVESTBUY>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<WINVESTBUY>-MATNR = 1.
<WINVESTBUY>-PRDAT = 1.
<WINVESTBUY>-LIFNR = 1.
<WINVESTBUY>-EKORG = 1.
<WINVESTBUY>-WERKS = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WINVESTBUY-MATKL, sy-vline,
WA_WINVESTBUY-WAERS, sy-vline,
WA_WINVESTBUY-BRTWR, sy-vline,
WA_WINVESTBUY-EFFWR, sy-vline,
WA_WINVESTBUY-NETPR, sy-vline,
WA_WINVESTBUY-NETWR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_WINVESTBUY 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_WINVESTBUY 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_WINVESTBUY INTO WA_WINVESTBUY. *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 MATN1, internal->external for field MATNR CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_WINVESTBUY-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WINVESTBUY-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field LMEIN CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_WINVESTBUY-LMEIN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WINVESTBUY-LMEIN.
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_WINVESTBUY_STR,
MATNR TYPE STRING,
PRDAT TYPE STRING,
LIFNR TYPE STRING,
EKORG TYPE STRING,
WERKS TYPE STRING,
MATKL TYPE STRING,
WAERS TYPE STRING,
BRTWR TYPE STRING,
EFFWR TYPE STRING,
NETPR TYPE STRING,
NETWR TYPE STRING,
PEINH TYPE STRING,
KZWI1 TYPE STRING,
KZWI2 TYPE STRING,
KZWI3 TYPE STRING,
KZWI4 TYPE STRING,
KZWI5 TYPE STRING,
KZWI6 TYPE STRING,
BONBA TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
BPRME TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
LMEIN TYPE STRING,END OF T_EKKO_STR. DATA: WA_WINVESTBUY_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_WINVESTBUY_STR-MATNR sy-vline
WA_WINVESTBUY_STR-PRDAT sy-vline
WA_WINVESTBUY_STR-LIFNR sy-vline
WA_WINVESTBUY_STR-EKORG sy-vline
WA_WINVESTBUY_STR-WERKS sy-vline
WA_WINVESTBUY_STR-MATKL sy-vline
WA_WINVESTBUY_STR-WAERS sy-vline
WA_WINVESTBUY_STR-BRTWR sy-vline
WA_WINVESTBUY_STR-EFFWR sy-vline
WA_WINVESTBUY_STR-NETPR sy-vline
WA_WINVESTBUY_STR-NETWR sy-vline
WA_WINVESTBUY_STR-PEINH sy-vline
WA_WINVESTBUY_STR-KZWI1 sy-vline
WA_WINVESTBUY_STR-KZWI2 sy-vline
WA_WINVESTBUY_STR-KZWI3 sy-vline
WA_WINVESTBUY_STR-KZWI4 sy-vline
WA_WINVESTBUY_STR-KZWI5 sy-vline
WA_WINVESTBUY_STR-KZWI6 sy-vline
WA_WINVESTBUY_STR-BONBA sy-vline
WA_WINVESTBUY_STR-MENGE sy-vline
WA_WINVESTBUY_STR-MEINS sy-vline
WA_WINVESTBUY_STR-BPRME sy-vline
WA_WINVESTBUY_STR-UMREZ sy-vline
WA_WINVESTBUY_STR-UMREN sy-vline
WA_WINVESTBUY_STR-LMEIN sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.