ABAP Select data from SAP table CLS_ASSIGNMENTSTATE_GRID_LINE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CLS_ASSIGNMENTSTATE_GRID_LINE 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_ASSIGNMENTSTATE_GRID_LINE. 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_ASSIGNMENTSTATE_GRID_LINE 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_ASSIGNMENTSTATE_GRID_LINE TYPE STANDARD TABLE OF CLS_ASSIGNMENTSTATE_GRID_LINE,
      WA_CLS_ASSIGNMENTSTATE_GRID_LINE TYPE CLS_ASSIGNMENTSTATE_GRID_LINE,
      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_ASSIGNMENTSTATE_GRID_LINE> TYPE CLS_ASSIGNMENTSTATE_GRID_LINE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CLS_ASSIGNMENTSTATE_GRID_LINE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CLS_ASSIGNMENTSTATE_GRID_LINE
  INTO TABLE IT_CLS_ASSIGNMENTSTATE_GRID_LINE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLS_ASSIGNMENTSTATE_GRID_LINE
*  INTO TABLE @DATA(IT_CLS_ASSIGNMENTSTATE_GRID_LINE2).
*--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_ASSIGNMENTSTATE_GRID_LINE INDEX 1 INTO DATA(WA_CLS_ASSIGNMENTSTATE_GRID_LINE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CLS_ASSIGNMENTSTATE_GRID_LINE ASSIGNING <CLS_ASSIGNMENTSTATE_GRID_LINE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLS_ASSIGNMENTSTATE_GRID_LINE>-TROBJTYPE = 1.
<CLS_ASSIGNMENTSTATE_GRID_LINE>-SOBJ_NAME = 1.
<CLS_ASSIGNMENTSTATE_GRID_LINE>-OBJECT_TYPE = 1.
<CLS_ASSIGNMENTSTATE_GRID_LINE>-SUB_KEY = 1.
<CLS_ASSIGNMENTSTATE_GRID_LINE>-STATE1 = 1.

ENDLOOP.

LOOP AT IT_CLS_ASSIGNMENTSTATE_GRID_LINE INTO WA_CLS_ASSIGNMENTSTATE_GRID_LINE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLS_ASSIGNMENTSTATE_GRID_LINE-STATE2, sy-vline,
  WA_CLS_ASSIGNMENTSTATE_GRID_LINE-STATE3, sy-vline,
  WA_CLS_ASSIGNMENTSTATE_GRID_LINE-STATE4, sy-vline,
  WA_CLS_ASSIGNMENTSTATE_GRID_LINE-STATE5, sy-vline,
  WA_CLS_ASSIGNMENTSTATE_GRID_LINE-STATE6, sy-vline,
  WA_CLS_ASSIGNMENTSTATE_GRID_LINE-STATE7, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLS_ASSIGNMENTSTATE_GRID_LINE 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_ASSIGNMENTSTATE_GRID_LINE 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_ASSIGNMENTSTATE_GRID_LINE INTO WA_CLS_ASSIGNMENTSTATE_GRID_LINE.


*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_ASSIGNMENTSTATE_GRID_LINE_STR, 
TROBJTYPE TYPE STRING,
SOBJ_NAME TYPE STRING,
OBJECT_TYPE TYPE STRING,
SUB_KEY TYPE STRING,
STATE1 TYPE STRING,
STATE2 TYPE STRING,
STATE3 TYPE STRING,
STATE4 TYPE STRING,
STATE5 TYPE STRING,
STATE6 TYPE STRING,
STATE7 TYPE STRING,
STATE8 TYPE STRING,
STATE9 TYPE STRING,
STATE10 TYPE STRING,
STATE11 TYPE STRING,
STATE12 TYPE STRING,
STATE13 TYPE STRING,
STATE14 TYPE STRING,
STATE15 TYPE STRING,
STATE16 TYPE STRING,
STATE17 TYPE STRING,
STATE18 TYPE STRING,
STATE19 TYPE STRING,
STATE20 TYPE STRING,
STATE21 TYPE STRING,
STATE22 TYPE STRING,
STATE23 TYPE STRING,
STATE24 TYPE STRING,
STATE25 TYPE STRING,
STATE26 TYPE STRING,
STATE27 TYPE STRING,
STATE28 TYPE STRING,
STATE29 TYPE STRING,
STATE30 TYPE STRING,
CELL_PROP TYPE STRING,
COLORS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLS_ASSIGNMENTSTATE_GRID_LINE_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_ASSIGNMENTSTATE_GRID_LINE_STR-TROBJTYPE sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-SOBJ_NAME sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-OBJECT_TYPE sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-SUB_KEY sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE1 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE2 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE3 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE4 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE5 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE6 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE7 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE8 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE9 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE10 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE11 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE12 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE13 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE14 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE15 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE16 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE17 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE18 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE19 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE20 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE21 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE22 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE23 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE24 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE25 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE26 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE27 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE28 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE29 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-STATE30 sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-CELL_PROP sy-vline 
WA_CLS_ASSIGNMENTSTATE_GRID_LINE_STR-COLORS sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.