ABAP Select data from SAP table DFS_V_T001L 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 DFS_V_T001L 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 DFS_V_T001L. 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 DFS_V_T001L 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_DFS_V_T001L TYPE STANDARD TABLE OF DFS_V_T001L,
      WA_DFS_V_T001L TYPE DFS_V_T001L,
      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: <DFS_V_T001L> TYPE DFS_V_T001L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DFS_V_T001L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DFS_V_T001L
  INTO TABLE IT_DFS_V_T001L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFS_V_T001L
*  INTO TABLE @DATA(IT_DFS_V_T001L2).
*--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_DFS_V_T001L INDEX 1 INTO DATA(WA_DFS_V_T001L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DFS_V_T001L ASSIGNING <DFS_V_T001L>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFS_V_T001L>-MANDT = 1.
<DFS_V_T001L>-WERKS = 1.
<DFS_V_T001L>-LGORT = 1.
<DFS_V_T001L>-LGOBE = 1.
<DFS_V_T001L>-XHUPF = 1.
ENDLOOP.

LOOP AT IT_DFS_V_T001L INTO WA_DFS_V_T001L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFS_V_T001L-PARLG, sy-vline,
WA_DFS_V_T001L-SPART, sy-vline,
WA_DFS_V_T001L-VKORG, sy-vline,
WA_DFS_V_T001L-VTWEG, sy-vline,
WA_DFS_V_T001L-VSTEL, sy-vline,
WA_DFS_V_T001L-LIFNR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_DFS_V_T001L 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_DFS_V_T001L 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_DFS_V_T001L INTO WA_DFS_V_T001L. *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 LIFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_DFS_V_T001L-LIFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_DFS_V_T001L-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_DFS_V_T001L-KUNNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_DFS_V_T001L-KUNNR.
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_DFS_V_T001L_STR,
MANDT TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
LGOBE TYPE STRING,
XHUPF TYPE STRING,
PARLG TYPE STRING,
SPART TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
VSTEL TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,END OF T_EKKO_STR. DATA: WA_DFS_V_T001L_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_DFS_V_T001L_STR-MANDT sy-vline
WA_DFS_V_T001L_STR-WERKS sy-vline
WA_DFS_V_T001L_STR-LGORT sy-vline
WA_DFS_V_T001L_STR-LGOBE sy-vline
WA_DFS_V_T001L_STR-XHUPF sy-vline
WA_DFS_V_T001L_STR-PARLG sy-vline
WA_DFS_V_T001L_STR-SPART sy-vline
WA_DFS_V_T001L_STR-VKORG sy-vline
WA_DFS_V_T001L_STR-VTWEG sy-vline
WA_DFS_V_T001L_STR-VSTEL sy-vline
WA_DFS_V_T001L_STR-LIFNR sy-vline
WA_DFS_V_T001L_STR-KUNNR sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.