ABAP Select data from SAP table KPVAEN 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 KPVAEN 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 KPVAEN. 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 KPVAEN 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_KPVAEN TYPE STANDARD TABLE OF KPVAEN, WA_KPVAEN TYPE KPVAEN, 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: <KPVAEN> TYPE KPVAEN. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_KPVAEN. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM KPVAEN INTO TABLE IT_KPVAEN. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM KPVAEN * INTO TABLE @DATA(IT_KPVAEN2). *--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_KPVAEN INDEX 1 INTO DATA(WA_KPVAEN2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_KPVAEN ASSIGNING <KPVAEN>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<KPVAEN>-MANDT = 1.
<KPVAEN>-BUDAT = 1.
<KPVAEN>-BUKRS = 1.
<KPVAEN>-WERKS = 1.
<KPVAEN>-WNAME = 1.
ENDLOOP. LOOP AT IT_KPVAEN INTO WA_KPVAEN. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_KPVAEN-BWKEY, sy-vline,
WA_KPVAEN-BWTAR, sy-vline,
WA_KPVAEN-PV_GRUND, sy-vline,
WA_KPVAEN-PV_GRTXT, sy-vline,
WA_KPVAEN-VKORG, sy-vline,
WA_KPVAEN-VTWEG, sy-vline.
ENDLOOP. *Add any further fields from structure WA_KPVAEN 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_KPVAEN 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_KPVAEN INTO WA_KPVAEN. *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 PV_GRUND CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_KPVAEN-PV_GRUND IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPVAEN-PV_GRUND.
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_KPVAEN_STR,
MANDT TYPE STRING,
BUDAT TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
WNAME TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
PV_GRUND TYPE STRING,
PV_GRTXT TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,END OF T_EKKO_STR. DATA: WA_KPVAEN_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_KPVAEN_STR-MANDT sy-vline
WA_KPVAEN_STR-BUDAT sy-vline
WA_KPVAEN_STR-BUKRS sy-vline
WA_KPVAEN_STR-WERKS sy-vline
WA_KPVAEN_STR-WNAME sy-vline
WA_KPVAEN_STR-BWKEY sy-vline
WA_KPVAEN_STR-BWTAR sy-vline
WA_KPVAEN_STR-PV_GRUND sy-vline
WA_KPVAEN_STR-PV_GRTXT sy-vline
WA_KPVAEN_STR-VKORG sy-vline
WA_KPVAEN_STR-VTWEG sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.