ABAP Select data from SAP table REF_TKOMVX 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 REF_TKOMVX 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 REF_TKOMVX. 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 REF_TKOMVX 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_REF_TKOMVX TYPE STANDARD TABLE OF REF_TKOMVX, WA_REF_TKOMVX TYPE REF_TKOMVX, 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: <REF_TKOMVX> TYPE REF_TKOMVX. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_REF_TKOMVX. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM REF_TKOMVX INTO TABLE IT_REF_TKOMVX. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM REF_TKOMVX * INTO TABLE @DATA(IT_REF_TKOMVX2). *--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_REF_TKOMVX INDEX 1 INTO DATA(WA_REF_TKOMVX2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_REF_TKOMVX ASSIGNING <REF_TKOMVX>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<REF_TKOMVX>-POSNR = 1.
<REF_TKOMVX>-KNUMV = 1.
<REF_TKOMVX>-KPOSN = 1.
<REF_TKOMVX>-STUNR = 1.
<REF_TKOMVX>-ZAEHK = 1.
ENDLOOP. LOOP AT IT_REF_TKOMVX INTO WA_REF_TKOMVX. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_REF_TKOMVX-KSCHL, sy-vline,
WA_REF_TKOMVX-UPDATEFLAG, sy-vline,
WA_REF_TKOMVX-KBETR, sy-vline,
WA_REF_TKOMVX-WAERS, sy-vline,
WA_REF_TKOMVX-KPEIN, sy-vline,
WA_REF_TKOMVX-KMEIN, sy-vline.
ENDLOOP. *Add any further fields from structure WA_REF_TKOMVX 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_REF_TKOMVX 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_REF_TKOMVX INTO WA_REF_TKOMVX. *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.
ENDFORM. *&---------------------------------------------------------------------* *& Form process_as_string_field_values *&---------------------------------------------------------------------* FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO. TYPES: BEGIN OF T_REF_TKOMVX_STR,
POSNR TYPE STRING,
KNUMV TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
KSCHL TYPE STRING,
UPDATEFLAG TYPE STRING,
KBETR TYPE STRING,
WAERS TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,END OF T_EKKO_STR. DATA: WA_REF_TKOMVX_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_REF_TKOMVX_STR-POSNR sy-vline
WA_REF_TKOMVX_STR-KNUMV sy-vline
WA_REF_TKOMVX_STR-KPOSN sy-vline
WA_REF_TKOMVX_STR-STUNR sy-vline
WA_REF_TKOMVX_STR-ZAEHK sy-vline
WA_REF_TKOMVX_STR-KSCHL sy-vline
WA_REF_TKOMVX_STR-UPDATEFLAG sy-vline
WA_REF_TKOMVX_STR-KBETR sy-vline
WA_REF_TKOMVX_STR-WAERS sy-vline
WA_REF_TKOMVX_STR-KPEIN sy-vline
WA_REF_TKOMVX_STR-KMEIN sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.