ABAP Select data from SAP table CNVTDMSSCR_TS_RANDOM_TABLE_15 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNVTDMSSCR_TS_RANDOM_TABLE_15 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 CNVTDMSSCR_TS_RANDOM_TABLE_15. 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 CNVTDMSSCR_TS_RANDOM_TABLE_15 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_CNVTDMSSCR_TS_RANDOM_TABLE_15 TYPE STANDARD TABLE OF CNVTDMSSCR_TS_RANDOM_TABLE_15,
      WA_CNVTDMSSCR_TS_RANDOM_TABLE_15 TYPE CNVTDMSSCR_TS_RANDOM_TABLE_15,
      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: <CNVTDMSSCR_TS_RANDOM_TABLE_15> TYPE CNVTDMSSCR_TS_RANDOM_TABLE_15.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNVTDMSSCR_TS_RANDOM_TABLE_15.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNVTDMSSCR_TS_RANDOM_TABLE_15
  INTO TABLE IT_CNVTDMSSCR_TS_RANDOM_TABLE_15.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVTDMSSCR_TS_RANDOM_TABLE_15
*  INTO TABLE @DATA(IT_CNVTDMSSCR_TS_RANDOM_TABLE_152).
*--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_CNVTDMSSCR_TS_RANDOM_TABLE_15 INDEX 1 INTO DATA(WA_CNVTDMSSCR_TS_RANDOM_TABLE_152).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNVTDMSSCR_TS_RANDOM_TABLE_15 ASSIGNING <CNVTDMSSCR_TS_RANDOM_TABLE_15>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVTDMSSCR_TS_RANDOM_TABLE_15>-ROW_NO = 1.
<CNVTDMSSCR_TS_RANDOM_TABLE_15>-COLUMN1 = 1.
<CNVTDMSSCR_TS_RANDOM_TABLE_15>-COLUMN2 = 1.
<CNVTDMSSCR_TS_RANDOM_TABLE_15>-COLUMN3 = 1.
<CNVTDMSSCR_TS_RANDOM_TABLE_15>-COLUMN4 = 1.

ENDLOOP.

LOOP AT IT_CNVTDMSSCR_TS_RANDOM_TABLE_15 INTO WA_CNVTDMSSCR_TS_RANDOM_TABLE_15.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVTDMSSCR_TS_RANDOM_TABLE_15-COLUMN5, sy-vline,
  WA_CNVTDMSSCR_TS_RANDOM_TABLE_15-COLUMN6, sy-vline,
  WA_CNVTDMSSCR_TS_RANDOM_TABLE_15-COLUMN7, sy-vline,
  WA_CNVTDMSSCR_TS_RANDOM_TABLE_15-COLUMN8, sy-vline,
  WA_CNVTDMSSCR_TS_RANDOM_TABLE_15-COLUMN9, sy-vline,
  WA_CNVTDMSSCR_TS_RANDOM_TABLE_15-COLUMN10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVTDMSSCR_TS_RANDOM_TABLE_15 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_CNVTDMSSCR_TS_RANDOM_TABLE_15 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_CNVTDMSSCR_TS_RANDOM_TABLE_15 INTO WA_CNVTDMSSCR_TS_RANDOM_TABLE_15.


*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_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR, 
ROW_NO TYPE STRING,
COLUMN1 TYPE STRING,
COLUMN2 TYPE STRING,
COLUMN3 TYPE STRING,
COLUMN4 TYPE STRING,
COLUMN5 TYPE STRING,
COLUMN6 TYPE STRING,
COLUMN7 TYPE STRING,
COLUMN8 TYPE STRING,
COLUMN9 TYPE STRING,
COLUMN10 TYPE STRING,
COLUMN11 TYPE STRING,
COLUMN12 TYPE STRING,
COLUMN13 TYPE STRING,
COLUMN14 TYPE STRING,
COLUMN15 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_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_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-ROW_NO sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN1 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN2 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN3 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN4 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN5 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN6 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN7 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN8 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN9 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN10 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN11 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN12 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN13 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN14 sy-vline 
WA_CNVTDMSSCR_TS_RANDOM_TABLE_15_STR-COLUMN15 sy-vline      INTO ld_text SEPARATED BY SPACE.

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