ABAP Select data from SAP table LK01 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 LK01 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 LK01. 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 LK01 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_LK01 TYPE STANDARD TABLE OF LK01, WA_LK01 TYPE LK01, 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: <LK01> TYPE LK01. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_LK01. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM LK01 INTO TABLE IT_LK01. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM LK01 * INTO TABLE @DATA(IT_LK012). *--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_LK01 INDEX 1 INTO DATA(WA_LK012). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_LK01 ASSIGNING <LK01>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<LK01>-MANDT = 1.
<LK01>-SAKOM = 1.
<LK01>-LGNUM = 1.
<LK01>-TBNUM = 1.
<LK01>-TBPOS = 1.
ENDLOOP. LOOP AT IT_LK01 INTO WA_LK01. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_LK01-TRART, sy-vline,
WA_LK01-TBPRI, sy-vline,
WA_LK01-TBFKZ, sy-vline,
WA_LK01-BNAME, sy-vline,
WA_LK01-MATNR, sy-vline,
WA_LK01-WERKS, sy-vline.
ENDLOOP. *Add any further fields from structure WA_LK01 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_LK01 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_LK01 INTO WA_LK01. *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_LK01-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-MATNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field SONUM CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_LK01-SONUM IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-SONUM.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field MEINS CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_LK01-MEINS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-MEINS.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field ALTME CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_LK01-ALTME IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-ALTME.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field MBLNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_LK01-MBLNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-MBLNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit GJAHR, internal->external for field MJAHR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_LK01-MJAHR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-MJAHR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field SMBLN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_LK01-SMBLN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-SMBLN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit GJAHR, internal->external for field SJAHR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_LK01-SJAHR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-SJAHR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field GEWEI CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_LK01-GEWEI IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-GEWEI.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field BENUM CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_LK01-BENUM IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-BENUM.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field QPLOS CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_LK01-QPLOS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-QPLOS.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field PKNUM CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_LK01-PKNUM IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-PKNUM.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field QPLOA CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_LK01-QPLOA IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-QPLOA.
WRITE:/ 'New Value:', ld_input.
*Conversion exit LENUM, internal->external for field LENUM CALL FUNCTION 'CONVERSION_EXIT_LENUM_OUTPUT' EXPORTING input = WA_LK01-LENUM IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-LENUM.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field VBELN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_LK01-VBELN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LK01-VBELN.
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_LK01_STR,
MANDT TYPE STRING,
SAKOM TYPE STRING,
LGNUM TYPE STRING,
TBNUM TYPE STRING,
TBPOS TYPE STRING,
TRART TYPE STRING,
TBPRI TYPE STRING,
TBFKZ TYPE STRING,
BNAME TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
CHARG TYPE STRING,
BESTQ TYPE STRING,
SOBKZ TYPE STRING,
SONUM TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
MENGA TYPE STRING,
ALTME TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
WDATU TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
MBPOS TYPE STRING,
SMBLN TYPE STRING,
SMBLP TYPE STRING,
SJAHR TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
BETYP TYPE STRING,
BENUM TYPE STRING,
BWART TYPE STRING,
BWLVS TYPE STRING,
VLTYP TYPE STRING,
VLPLA TYPE STRING,
VKDYN TYPE STRING,
VSCHN TYPE STRING,
NLTYP TYPE STRING,
NLPLA TYPE STRING,
NKDYN TYPE STRING,
NSCHN TYPE STRING,
PDATU TYPE STRING,
PZEIT TYPE STRING,
KLFR2 TYPE STRING,
LQNUM TYPE STRING,
QPLOS TYPE STRING,
TBKTX TYPE STRING,
TBRUE TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
LZNUM TYPE STRING,
ANZL1 TYPE STRING,
ANZL2 TYPE STRING,
LMEN1 TYPE STRING,
LMEN2 TYPE STRING,
LETY1 TYPE STRING,
LETY2 TYPE STRING,
VFDAT TYPE STRING,
BDART TYPE STRING,
AUTTA TYPE STRING,
PKNUM TYPE STRING,
PKPOS TYPE STRING,
ZEUGN TYPE STRING,
QPLOA TYPE STRING,
RSART TYPE STRING,
DIRTA TYPE STRING,
KZECH TYPE STRING,
LGORT TYPE STRING,
LGNTB TYPE STRING,
L2SKR TYPE STRING,
XSTBW TYPE STRING,
KBNKZ TYPE STRING,
PKKEY TYPE STRING,
KZFME TYPE STRING,
LENUM TYPE STRING,
LETYP TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
LDUMM TYPE STRING,
XHUPF TYPE STRING,
QKAPV TYPE STRING,
LKAPA TYPE STRING,
KKAPV TYPE STRING,
MAXLE TYPE STRING,
PLPOS TYPE STRING,
STEIN TYPE STRING,
SUMME TYPE STRING,
PLAUF TYPE STRING,
SGT_SCAT TYPE STRING,END OF T_EKKO_STR. DATA: WA_LK01_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_LK01_STR-MANDT sy-vline
WA_LK01_STR-SAKOM sy-vline
WA_LK01_STR-LGNUM sy-vline
WA_LK01_STR-TBNUM sy-vline
WA_LK01_STR-TBPOS sy-vline
WA_LK01_STR-TRART sy-vline
WA_LK01_STR-TBPRI sy-vline
WA_LK01_STR-TBFKZ sy-vline
WA_LK01_STR-BNAME sy-vline
WA_LK01_STR-MATNR sy-vline
WA_LK01_STR-WERKS sy-vline
WA_LK01_STR-CHARG sy-vline
WA_LK01_STR-BESTQ sy-vline
WA_LK01_STR-SOBKZ sy-vline
WA_LK01_STR-SONUM sy-vline
WA_LK01_STR-MENGE sy-vline
WA_LK01_STR-MEINS sy-vline
WA_LK01_STR-MENGA sy-vline
WA_LK01_STR-ALTME sy-vline
WA_LK01_STR-UMREZ sy-vline
WA_LK01_STR-UMREN sy-vline
WA_LK01_STR-WEMPF sy-vline
WA_LK01_STR-ABLAD sy-vline
WA_LK01_STR-WDATU sy-vline
WA_LK01_STR-MBLNR sy-vline
WA_LK01_STR-MJAHR sy-vline
WA_LK01_STR-MBPOS sy-vline
WA_LK01_STR-SMBLN sy-vline
WA_LK01_STR-SMBLP sy-vline
WA_LK01_STR-SJAHR sy-vline
WA_LK01_STR-BRGEW sy-vline
WA_LK01_STR-GEWEI sy-vline
WA_LK01_STR-BETYP sy-vline
WA_LK01_STR-BENUM sy-vline
WA_LK01_STR-BWART sy-vline
WA_LK01_STR-BWLVS sy-vline
WA_LK01_STR-VLTYP sy-vline
WA_LK01_STR-VLPLA sy-vline
WA_LK01_STR-VKDYN sy-vline
WA_LK01_STR-VSCHN sy-vline
WA_LK01_STR-NLTYP sy-vline
WA_LK01_STR-NLPLA sy-vline
WA_LK01_STR-NKDYN sy-vline
WA_LK01_STR-NSCHN sy-vline
WA_LK01_STR-PDATU sy-vline
WA_LK01_STR-PZEIT sy-vline
WA_LK01_STR-KLFR2 sy-vline
WA_LK01_STR-LQNUM sy-vline
WA_LK01_STR-QPLOS sy-vline
WA_LK01_STR-TBKTX sy-vline
WA_LK01_STR-TBRUE sy-vline
WA_LK01_STR-RSNUM sy-vline
WA_LK01_STR-RSPOS sy-vline
WA_LK01_STR-LZNUM sy-vline
WA_LK01_STR-ANZL1 sy-vline
WA_LK01_STR-ANZL2 sy-vline
WA_LK01_STR-LMEN1 sy-vline
WA_LK01_STR-LMEN2 sy-vline
WA_LK01_STR-LETY1 sy-vline
WA_LK01_STR-LETY2 sy-vline
WA_LK01_STR-VFDAT sy-vline
WA_LK01_STR-BDART sy-vline
WA_LK01_STR-AUTTA sy-vline
WA_LK01_STR-PKNUM sy-vline
WA_LK01_STR-PKPOS sy-vline
WA_LK01_STR-ZEUGN sy-vline
WA_LK01_STR-QPLOA sy-vline
WA_LK01_STR-RSART sy-vline
WA_LK01_STR-DIRTA sy-vline
WA_LK01_STR-KZECH sy-vline
WA_LK01_STR-LGORT sy-vline
WA_LK01_STR-LGNTB sy-vline
WA_LK01_STR-L2SKR sy-vline
WA_LK01_STR-XSTBW sy-vline
WA_LK01_STR-KBNKZ sy-vline
WA_LK01_STR-PKKEY sy-vline
WA_LK01_STR-KZFME sy-vline
WA_LK01_STR-LENUM sy-vline
WA_LK01_STR-LETYP sy-vline
WA_LK01_STR-VBELN sy-vline
WA_LK01_STR-POSNR sy-vline
WA_LK01_STR-LDUMM sy-vline
WA_LK01_STR-XHUPF sy-vline
WA_LK01_STR-QKAPV sy-vline
WA_LK01_STR-LKAPA sy-vline
WA_LK01_STR-KKAPV sy-vline
WA_LK01_STR-MAXLE sy-vline
WA_LK01_STR-PLPOS sy-vline
WA_LK01_STR-STEIN sy-vline
WA_LK01_STR-SUMME sy-vline
WA_LK01_STR-PLAUF sy-vline
WA_LK01_STR-SGT_SCAT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.