ABAP Select data from SAP table CLS_LINKED_OBJ 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 CLS_LINKED_OBJ 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 CLS_LINKED_OBJ. 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 CLS_LINKED_OBJ 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_CLS_LINKED_OBJ TYPE STANDARD TABLE OF CLS_LINKED_OBJ, WA_CLS_LINKED_OBJ TYPE CLS_LINKED_OBJ, 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: <CLS_LINKED_OBJ> TYPE CLS_LINKED_OBJ. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_CLS_LINKED_OBJ. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM CLS_LINKED_OBJ INTO TABLE IT_CLS_LINKED_OBJ. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM CLS_LINKED_OBJ * INTO TABLE @DATA(IT_CLS_LINKED_OBJ2). *--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_CLS_LINKED_OBJ INDEX 1 INTO DATA(WA_CLS_LINKED_OBJ2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_CLS_LINKED_OBJ ASSIGNING <CLS_LINKED_OBJ>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLS_LINKED_OBJ>-GUID = 1.
<CLS_LINKED_OBJ>-TROBJTYPELNK = 1.
<CLS_LINKED_OBJ>-SOBJ_NAMELNK = 1.
<CLS_LINKED_OBJ>-OBJECT_TYPELNK = 1.
<CLS_LINKED_OBJ>-SUB_KEYLNK = 1.
ENDLOOP. LOOP AT IT_CLS_LINKED_OBJ INTO WA_CLS_LINKED_OBJ. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_CLS_LINKED_OBJ-TROBJTYPE, sy-vline,
WA_CLS_LINKED_OBJ-SOBJ_NAME, sy-vline,
WA_CLS_LINKED_OBJ-OBJECT_TYPE, sy-vline,
WA_CLS_LINKED_OBJ-SUB_KEY, sy-vline,
WA_CLS_LINKED_OBJ-ATTRIBUTE, sy-vline,
WA_CLS_LINKED_OBJ-CHANGED_ON, sy-vline.
ENDLOOP. *Add any further fields from structure WA_CLS_LINKED_OBJ 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_CLS_LINKED_OBJ 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_CLS_LINKED_OBJ INTO WA_CLS_LINKED_OBJ. *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_CLS_LINKED_OBJ_STR,
GUID TYPE STRING,
TROBJTYPELNK TYPE STRING,
SOBJ_NAMELNK TYPE STRING,
OBJECT_TYPELNK TYPE STRING,
SUB_KEYLNK TYPE STRING,
TROBJTYPE TYPE STRING,
SOBJ_NAME TYPE STRING,
OBJECT_TYPE TYPE STRING,
SUB_KEY TYPE STRING,
ATTRIBUTE TYPE STRING,
CHANGED_ON TYPE STRING,
SET_BY TYPE STRING,
TEXT TYPE STRING,
REMARK TYPE STRING,END OF T_EKKO_STR. DATA: WA_CLS_LINKED_OBJ_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_CLS_LINKED_OBJ_STR-GUID sy-vline
WA_CLS_LINKED_OBJ_STR-TROBJTYPELNK sy-vline
WA_CLS_LINKED_OBJ_STR-SOBJ_NAMELNK sy-vline
WA_CLS_LINKED_OBJ_STR-OBJECT_TYPELNK sy-vline
WA_CLS_LINKED_OBJ_STR-SUB_KEYLNK sy-vline
WA_CLS_LINKED_OBJ_STR-TROBJTYPE sy-vline
WA_CLS_LINKED_OBJ_STR-SOBJ_NAME sy-vline
WA_CLS_LINKED_OBJ_STR-OBJECT_TYPE sy-vline
WA_CLS_LINKED_OBJ_STR-SUB_KEY sy-vline
WA_CLS_LINKED_OBJ_STR-ATTRIBUTE sy-vline
WA_CLS_LINKED_OBJ_STR-CHANGED_ON sy-vline
WA_CLS_LINKED_OBJ_STR-SET_BY sy-vline
WA_CLS_LINKED_OBJ_STR-TEXT sy-vline
WA_CLS_LINKED_OBJ_STR-REMARK sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.