ABAP Select data from SAP table V_WLF_DATA_NAST 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 V_WLF_DATA_NAST 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 V_WLF_DATA_NAST. 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 V_WLF_DATA_NAST 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_V_WLF_DATA_NAST TYPE STANDARD TABLE OF V_WLF_DATA_NAST, WA_V_WLF_DATA_NAST TYPE V_WLF_DATA_NAST, 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: <V_WLF_DATA_NAST> TYPE V_WLF_DATA_NAST. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_V_WLF_DATA_NAST. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM V_WLF_DATA_NAST INTO TABLE IT_V_WLF_DATA_NAST. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM V_WLF_DATA_NAST * INTO TABLE @DATA(IT_V_WLF_DATA_NAST2). *--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_V_WLF_DATA_NAST INDEX 1 INTO DATA(WA_V_WLF_DATA_NAST2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_V_WLF_DATA_NAST ASSIGNING <V_WLF_DATA_NAST>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_WLF_DATA_NAST>-MANDT = 1.
<V_WLF_DATA_NAST>-KSCHL = 1.
<V_WLF_DATA_NAST>-VTEXT = 1.
<V_WLF_DATA_NAST>-KOMLFK_POS_READ = 1.
<V_WLF_DATA_NAST>-KOMLFK_POS_POS_R = 1.
ENDLOOP. LOOP AT IT_V_WLF_DATA_NAST INTO WA_V_WLF_DATA_NAST. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_V_WLF_DATA_NAST-KOMLFP_READ, sy-vline,
WA_V_WLF_DATA_NAST-KONV_READ, sy-vline,
WA_V_WLF_DATA_NAST-KONV_POS_READ, sy-vline,
WA_V_WLF_DATA_NAST-KOMVD, sy-vline,
WA_V_WLF_DATA_NAST-KOMVD_ITEM, sy-vline,
WA_V_WLF_DATA_NAST-KONH_READ, sy-vline.
ENDLOOP. *Add any further fields from structure WA_V_WLF_DATA_NAST 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_V_WLF_DATA_NAST 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_V_WLF_DATA_NAST INTO WA_V_WLF_DATA_NAST. *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_V_WLF_DATA_NAST_STR,
MANDT TYPE STRING,
KSCHL TYPE STRING,
VTEXT TYPE STRING,
KOMLFK_POS_READ TYPE STRING,
KOMLFK_POS_POS_R TYPE STRING,
KOMLFP_READ TYPE STRING,
KONV_READ TYPE STRING,
KONV_POS_READ TYPE STRING,
KOMVD TYPE STRING,
KOMVD_ITEM TYPE STRING,
KONH_READ TYPE STRING,
KONP_READ TYPE STRING,
ITEM_COMPRESS TYPE STRING,
ORG_DATA_READ TYPE STRING,
KOMV_HD_DOC TYPE STRING,
KOMV_HD_LIST_SIN TYPE STRING,
MATERIAL_READ TYPE STRING,
T685T_READ TYPE STRING,
OVERALL_COMPRESS TYPE STRING,
MWSKZ_SET TYPE STRING,
KOMLFK_V_READ TYPE STRING,
ADDR_KEY_READ TYPE STRING,
ZTERM_READ TYPE STRING,
MLAN_READ TYPE STRING,
T134_READ TYPE STRING,
TOCOUNTRY_READ TYPE STRING,
VOLLG_LEERG_SPLI TYPE STRING,
KOMK_READ TYPE STRING,
FOREIGN_DOCS TYPE STRING,
TEXT_READ TYPE STRING,
TEXT_READ_V TYPE STRING,
TEXT_READ_POS TYPE STRING,
PARTNER_READ TYPE STRING,
PARTNER_POS_READ TYPE STRING,
WCOCOH_READ TYPE STRING,END OF T_EKKO_STR. DATA: WA_V_WLF_DATA_NAST_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_V_WLF_DATA_NAST_STR-MANDT sy-vline
WA_V_WLF_DATA_NAST_STR-KSCHL sy-vline
WA_V_WLF_DATA_NAST_STR-VTEXT sy-vline
WA_V_WLF_DATA_NAST_STR-KOMLFK_POS_READ sy-vline
WA_V_WLF_DATA_NAST_STR-KOMLFK_POS_POS_R sy-vline
WA_V_WLF_DATA_NAST_STR-KOMLFP_READ sy-vline
WA_V_WLF_DATA_NAST_STR-KONV_READ sy-vline
WA_V_WLF_DATA_NAST_STR-KONV_POS_READ sy-vline
WA_V_WLF_DATA_NAST_STR-KOMVD sy-vline
WA_V_WLF_DATA_NAST_STR-KOMVD_ITEM sy-vline
WA_V_WLF_DATA_NAST_STR-KONH_READ sy-vline
WA_V_WLF_DATA_NAST_STR-KONP_READ sy-vline
WA_V_WLF_DATA_NAST_STR-ITEM_COMPRESS sy-vline
WA_V_WLF_DATA_NAST_STR-ORG_DATA_READ sy-vline
WA_V_WLF_DATA_NAST_STR-KOMV_HD_DOC sy-vline
WA_V_WLF_DATA_NAST_STR-KOMV_HD_LIST_SIN sy-vline
WA_V_WLF_DATA_NAST_STR-MATERIAL_READ sy-vline
WA_V_WLF_DATA_NAST_STR-T685T_READ sy-vline
WA_V_WLF_DATA_NAST_STR-OVERALL_COMPRESS sy-vline
WA_V_WLF_DATA_NAST_STR-MWSKZ_SET sy-vline
WA_V_WLF_DATA_NAST_STR-KOMLFK_V_READ sy-vline
WA_V_WLF_DATA_NAST_STR-ADDR_KEY_READ sy-vline
WA_V_WLF_DATA_NAST_STR-ZTERM_READ sy-vline
WA_V_WLF_DATA_NAST_STR-MLAN_READ sy-vline
WA_V_WLF_DATA_NAST_STR-T134_READ sy-vline
WA_V_WLF_DATA_NAST_STR-TOCOUNTRY_READ sy-vline
WA_V_WLF_DATA_NAST_STR-VOLLG_LEERG_SPLI sy-vline
WA_V_WLF_DATA_NAST_STR-KOMK_READ sy-vline
WA_V_WLF_DATA_NAST_STR-FOREIGN_DOCS sy-vline
WA_V_WLF_DATA_NAST_STR-TEXT_READ sy-vline
WA_V_WLF_DATA_NAST_STR-TEXT_READ_V sy-vline
WA_V_WLF_DATA_NAST_STR-TEXT_READ_POS sy-vline
WA_V_WLF_DATA_NAST_STR-PARTNER_READ sy-vline
WA_V_WLF_DATA_NAST_STR-PARTNER_POS_READ sy-vline
WA_V_WLF_DATA_NAST_STR-WCOCOH_READ sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.