ABAP Select data from SAP table WRF_POTB_TRF 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 WRF_POTB_TRF 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 WRF_POTB_TRF. 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 WRF_POTB_TRF 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_WRF_POTB_TRF TYPE STANDARD TABLE OF WRF_POTB_TRF, WA_WRF_POTB_TRF TYPE WRF_POTB_TRF, 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: <WRF_POTB_TRF> TYPE WRF_POTB_TRF. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_WRF_POTB_TRF. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM WRF_POTB_TRF INTO TABLE IT_WRF_POTB_TRF. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM WRF_POTB_TRF * INTO TABLE @DATA(IT_WRF_POTB_TRF2). *--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_WRF_POTB_TRF INDEX 1 INTO DATA(WA_WRF_POTB_TRF2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_WRF_POTB_TRF ASSIGNING <WRF_POTB_TRF>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRF_POTB_TRF>-MANDT = 1.
<WRF_POTB_TRF>-TRANSF_ID = 1.
<WRF_POTB_TRF>-TRANSF_STATUS = 1.
<WRF_POTB_TRF>-TRANSF_DATE_FROM = 1.
<WRF_POTB_TRF>-MAT_HIER_ID = 1.
ENDLOOP. LOOP AT IT_WRF_POTB_TRF INTO WA_WRF_POTB_TRF. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_WRF_POTB_TRF-MAT_HIER_LEVEL, sy-vline,
WA_WRF_POTB_TRF-MATNR, sy-vline,
WA_WRF_POTB_TRF-NODE_OLD, sy-vline,
WA_WRF_POTB_TRF-DATE_FROM_OLD, sy-vline,
WA_WRF_POTB_TRF-DATE_TO_OLD, sy-vline,
WA_WRF_POTB_TRF-NODE_NEW, sy-vline.
ENDLOOP. *Add any further fields from structure WA_WRF_POTB_TRF 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_WRF_POTB_TRF 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_WRF_POTB_TRF INTO WA_WRF_POTB_TRF. *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_WRF_POTB_TRF-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WRF_POTB_TRF-MATNR.
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_WRF_POTB_TRF_STR,
MANDT TYPE STRING,
TRANSF_ID TYPE STRING,
TRANSF_STATUS TYPE STRING,
TRANSF_DATE_FROM TYPE STRING,
MAT_HIER_ID TYPE STRING,
MAT_HIER_LEVEL TYPE STRING,
MATNR TYPE STRING,
NODE_OLD TYPE STRING,
DATE_FROM_OLD TYPE STRING,
DATE_TO_OLD TYPE STRING,
NODE_NEW TYPE STRING,
DATE_FROM_NEW TYPE STRING,
DATE_TO_NEW TYPE STRING,
TIMESTAMP TYPE STRING,
UNAME TYPE STRING,
PROGRAMM TYPE STRING,END OF T_EKKO_STR. DATA: WA_WRF_POTB_TRF_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_WRF_POTB_TRF_STR-MANDT sy-vline
WA_WRF_POTB_TRF_STR-TRANSF_ID sy-vline
WA_WRF_POTB_TRF_STR-TRANSF_STATUS sy-vline
WA_WRF_POTB_TRF_STR-TRANSF_DATE_FROM sy-vline
WA_WRF_POTB_TRF_STR-MAT_HIER_ID sy-vline
WA_WRF_POTB_TRF_STR-MAT_HIER_LEVEL sy-vline
WA_WRF_POTB_TRF_STR-MATNR sy-vline
WA_WRF_POTB_TRF_STR-NODE_OLD sy-vline
WA_WRF_POTB_TRF_STR-DATE_FROM_OLD sy-vline
WA_WRF_POTB_TRF_STR-DATE_TO_OLD sy-vline
WA_WRF_POTB_TRF_STR-NODE_NEW sy-vline
WA_WRF_POTB_TRF_STR-DATE_FROM_NEW sy-vline
WA_WRF_POTB_TRF_STR-DATE_TO_NEW sy-vline
WA_WRF_POTB_TRF_STR-TIMESTAMP sy-vline
WA_WRF_POTB_TRF_STR-UNAME sy-vline
WA_WRF_POTB_TRF_STR-PROGRAMM sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.