ABAP Select data from SAP table BKNBW 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 BKNBW 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 BKNBW. 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 BKNBW 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_BKNBW TYPE STANDARD TABLE OF BKNBW, WA_BKNBW TYPE BKNBW, 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: <BKNBW> TYPE BKNBW. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_BKNBW. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM BKNBW INTO TABLE IT_BKNBW. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM BKNBW * INTO TABLE @DATA(IT_BKNBW2). *--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_BKNBW INDEX 1 INTO DATA(WA_BKNBW2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_BKNBW ASSIGNING <BKNBW>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKNBW>-STYPE = 1.
<BKNBW>-TBNAM = 1.
<BKNBW>-XDELE = 1.
<BKNBW>-WITHT = 1.
<BKNBW>-WT_WITHCD = 1.
ENDLOOP. LOOP AT IT_BKNBW INTO WA_BKNBW. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_BKNBW-WT_AGENT, sy-vline,
WA_BKNBW-WT_AGTDF, sy-vline,
WA_BKNBW-WT_AGTDT, sy-vline,
WA_BKNBW-WT_WTSTCD, sy-vline,
WA_BKNBW-WT_EXNR, sy-vline,
WA_BKNBW-WT_EXRT, sy-vline.
ENDLOOP. *Add any further fields from structure WA_BKNBW 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_BKNBW 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_BKNBW INTO WA_BKNBW. *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_BKNBW_STR,
STYPE TYPE STRING,
TBNAM TYPE STRING,
XDELE TYPE STRING,
WITHT TYPE STRING,
WT_WITHCD TYPE STRING,
WT_AGENT TYPE STRING,
WT_AGTDF TYPE STRING,
WT_AGTDT TYPE STRING,
WT_WTSTCD TYPE STRING,
WT_EXNR TYPE STRING,
WT_EXRT TYPE STRING,
WT_EXDF TYPE STRING,
WT_EXDT TYPE STRING,
WT_WTEXRS TYPE STRING,
SENDE TYPE STRING,END OF T_EKKO_STR. DATA: WA_BKNBW_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_BKNBW_STR-STYPE sy-vline
WA_BKNBW_STR-TBNAM sy-vline
WA_BKNBW_STR-XDELE sy-vline
WA_BKNBW_STR-WITHT sy-vline
WA_BKNBW_STR-WT_WITHCD sy-vline
WA_BKNBW_STR-WT_AGENT sy-vline
WA_BKNBW_STR-WT_AGTDF sy-vline
WA_BKNBW_STR-WT_AGTDT sy-vline
WA_BKNBW_STR-WT_WTSTCD sy-vline
WA_BKNBW_STR-WT_EXNR sy-vline
WA_BKNBW_STR-WT_EXRT sy-vline
WA_BKNBW_STR-WT_EXDF sy-vline
WA_BKNBW_STR-WT_EXDT sy-vline
WA_BKNBW_STR-WT_WTEXRS sy-vline
WA_BKNBW_STR-SENDE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.