ABAP Select data from SAP table VNFAM 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 VNFAM 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 VNFAM. 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 VNFAM 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_VNFAM TYPE STANDARD TABLE OF VNFAM,
WA_VNFAM TYPE VNFAM,
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: <VNFAM> TYPE VNFAM.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_VNFAM.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM VNFAM
INTO TABLE IT_VNFAM.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM VNFAM
* INTO TABLE @DATA(IT_VNFAM2).
*--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_VNFAM INDEX 1 INTO DATA(WA_VNFAM2).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VNFAM ASSIGNING <VNFAM>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<VNFAM>-MANDT = 1.
<VNFAM>-EINRI = 1.
<VNFAM>-SELKZ = 1.
<VNFAM>-FALNR = 1.
<VNFAM>-LFDNR = 1.
ENDLOOP. LOOP AT IT_VNFAM INTO WA_VNFAM. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_VNFAM-MSGTY, sy-vline,
WA_VNFAM-MSGTX, sy-vline,
WA_VNFAM-ARBGB, sy-vline,
WA_VNFAM-TXTNR, sy-vline,
WA_VNFAM-MSGV1, sy-vline,
WA_VNFAM-MSGV2, sy-vline.
ENDLOOP. *Add any further fields from structure WA_VNFAM 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_VNFAM 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_VNFAM INTO WA_VNFAM. *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_VNFAM-EINRI IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VNFAM-EINRI.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field SELKZ CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VNFAM-SELKZ IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VNFAM-SELKZ.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field FALNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VNFAM-FALNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VNFAM-FALNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field ACTION CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VNFAM-ACTION IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VNFAM-ACTION.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field BELNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VNFAM-BELNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VNFAM-BELNR.
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_VNFAM_STR,
MANDT TYPE STRING,
EINRI TYPE STRING,
SELKZ TYPE STRING,
FALNR TYPE STRING,
LFDNR TYPE STRING,
MSGTY TYPE STRING,
MSGTX TYPE STRING,
ARBGB TYPE STRING,
TXTNR TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
ACTION TYPE STRING,
CATEGORY TYPE STRING,
BELNR TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR. DATA: WA_VNFAM_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_VNFAM_STR-MANDT sy-vline
WA_VNFAM_STR-EINRI sy-vline
WA_VNFAM_STR-SELKZ sy-vline
WA_VNFAM_STR-FALNR sy-vline
WA_VNFAM_STR-LFDNR sy-vline
WA_VNFAM_STR-MSGTY sy-vline
WA_VNFAM_STR-MSGTX sy-vline
WA_VNFAM_STR-ARBGB sy-vline
WA_VNFAM_STR-TXTNR sy-vline
WA_VNFAM_STR-MSGV1 sy-vline
WA_VNFAM_STR-MSGV2 sy-vline
WA_VNFAM_STR-MSGV3 sy-vline
WA_VNFAM_STR-MSGV4 sy-vline
WA_VNFAM_STR-ACTION sy-vline
WA_VNFAM_STR-CATEGORY sy-vline
WA_VNFAM_STR-BELNR sy-vline
WA_VNFAM_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.
