ABAP Select data from SAP table DEMO_CHESS_SP2L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DEMO_CHESS_SP2L 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 DEMO_CHESS_SP2L. 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 DEMO_CHESS_SP2L 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_DEMO_CHESS_SP2L TYPE STANDARD TABLE OF DEMO_CHESS_SP2L,
      WA_DEMO_CHESS_SP2L TYPE DEMO_CHESS_SP2L,
      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: <DEMO_CHESS_SP2L> TYPE DEMO_CHESS_SP2L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DEMO_CHESS_SP2L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DEMO_CHESS_SP2L
  INTO TABLE IT_DEMO_CHESS_SP2L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DEMO_CHESS_SP2L
*  INTO TABLE @DATA(IT_DEMO_CHESS_SP2L2).
*--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_DEMO_CHESS_SP2L INDEX 1 INTO DATA(WA_DEMO_CHESS_SP2L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DEMO_CHESS_SP2L ASSIGNING <DEMO_CHESS_SP2L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DEMO_CHESS_SP2L>-MANDT = 1.
<DEMO_CHESS_SP2L>-GAMEUUID = 1.
<DEMO_CHESS_SP2L>-MOVECNT = 1.
<DEMO_CHESS_SP2L>-COLOR = 1.
<DEMO_CHESS_SP2L>-CASTLING_WHITE_LONG = 1.

ENDLOOP.

LOOP AT IT_DEMO_CHESS_SP2L INTO WA_DEMO_CHESS_SP2L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DEMO_CHESS_SP2L-CASTLING_WHITE_SHORT, sy-vline,
  WA_DEMO_CHESS_SP2L-CASTLING_BLACK_LONG, sy-vline,
  WA_DEMO_CHESS_SP2L-CASTLING_BLACK_SHORT, sy-vline,
  WA_DEMO_CHESS_SP2L-A1_COLOR, sy-vline,
  WA_DEMO_CHESS_SP2L-A1_CHESSMAN, sy-vline,
  WA_DEMO_CHESS_SP2L-B1_COLOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DEMO_CHESS_SP2L 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_DEMO_CHESS_SP2L 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_DEMO_CHESS_SP2L INTO WA_DEMO_CHESS_SP2L.


*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_DEMO_CHESS_SP2L_STR, 
MANDT TYPE STRING,
GAMEUUID TYPE STRING,
MOVECNT TYPE STRING,
COLOR TYPE STRING,
CASTLING_WHITE_LONG TYPE STRING,
CASTLING_WHITE_SHORT TYPE STRING,
CASTLING_BLACK_LONG TYPE STRING,
CASTLING_BLACK_SHORT TYPE STRING,
A1_COLOR TYPE STRING,
A1_CHESSMAN TYPE STRING,
B1_COLOR TYPE STRING,
B1_CHESSMAN TYPE STRING,
C1_COLOR TYPE STRING,
C1_CHESSMAN TYPE STRING,
D1_COLOR TYPE STRING,
D1_CHESSMAN TYPE STRING,
E1_COLOR TYPE STRING,
E1_CHESSMAN TYPE STRING,
F1_COLOR TYPE STRING,
F1_CHESSMAN TYPE STRING,
G1_COLOR TYPE STRING,
G1_CHESSMAN TYPE STRING,
H1_COLOR TYPE STRING,
H1_CHESSMAN TYPE STRING,
A2_COLOR TYPE STRING,
A2_CHESSMAN TYPE STRING,
B2_COLOR TYPE STRING,
B2_CHESSMAN TYPE STRING,
C2_COLOR TYPE STRING,
C2_CHESSMAN TYPE STRING,
D2_COLOR TYPE STRING,
D2_CHESSMAN TYPE STRING,
E2_COLOR TYPE STRING,
E2_CHESSMAN TYPE STRING,
F2_COLOR TYPE STRING,
F2_CHESSMAN TYPE STRING,
G2_COLOR TYPE STRING,
G2_CHESSMAN TYPE STRING,
H2_COLOR TYPE STRING,
H2_CHESSMAN TYPE STRING,
A3_COLOR TYPE STRING,
A3_CHESSMAN TYPE STRING,
B3_COLOR TYPE STRING,
B3_CHESSMAN TYPE STRING,
C3_COLOR TYPE STRING,
C3_CHESSMAN TYPE STRING,
D3_COLOR TYPE STRING,
D3_CHESSMAN TYPE STRING,
E3_COLOR TYPE STRING,
E3_CHESSMAN TYPE STRING,
F3_COLOR TYPE STRING,
F3_CHESSMAN TYPE STRING,
G3_COLOR TYPE STRING,
G3_CHESSMAN TYPE STRING,
H3_COLOR TYPE STRING,
H3_CHESSMAN TYPE STRING,
A4_COLOR TYPE STRING,
A4_CHESSMAN TYPE STRING,
B4_COLOR TYPE STRING,
B4_CHESSMAN TYPE STRING,
C4_COLOR TYPE STRING,
C4_CHESSMAN TYPE STRING,
D4_COLOR TYPE STRING,
D4_CHESSMAN TYPE STRING,
E4_COLOR TYPE STRING,
E4_CHESSMAN TYPE STRING,
F4_COLOR TYPE STRING,
F4_CHESSMAN TYPE STRING,
G4_COLOR TYPE STRING,
G4_CHESSMAN TYPE STRING,
H4_COLOR TYPE STRING,
H4_CHESSMAN TYPE STRING,
A5_COLOR TYPE STRING,
A5_CHESSMAN TYPE STRING,
B5_COLOR TYPE STRING,
B5_CHESSMAN TYPE STRING,
C5_COLOR TYPE STRING,
C5_CHESSMAN TYPE STRING,
D5_COLOR TYPE STRING,
D5_CHESSMAN TYPE STRING,
E5_COLOR TYPE STRING,
E5_CHESSMAN TYPE STRING,
F5_COLOR TYPE STRING,
F5_CHESSMAN TYPE STRING,
G5_COLOR TYPE STRING,
G5_CHESSMAN TYPE STRING,
H5_COLOR TYPE STRING,
H5_CHESSMAN TYPE STRING,
A6_COLOR TYPE STRING,
A6_CHESSMAN TYPE STRING,
B6_COLOR TYPE STRING,
B6_CHESSMAN TYPE STRING,
C6_COLOR TYPE STRING,
C6_CHESSMAN TYPE STRING,
D6_COLOR TYPE STRING,
D6_CHESSMAN TYPE STRING,
E6_COLOR TYPE STRING,
E6_CHESSMAN TYPE STRING,
F6_COLOR TYPE STRING,
F6_CHESSMAN TYPE STRING,
G6_COLOR TYPE STRING,
G6_CHESSMAN TYPE STRING,
H6_COLOR TYPE STRING,
H6_CHESSMAN TYPE STRING,
A7_COLOR TYPE STRING,
A7_CHESSMAN TYPE STRING,
B7_COLOR TYPE STRING,
B7_CHESSMAN TYPE STRING,
C7_COLOR TYPE STRING,
C7_CHESSMAN TYPE STRING,
D7_COLOR TYPE STRING,
D7_CHESSMAN TYPE STRING,
E7_COLOR TYPE STRING,
E7_CHESSMAN TYPE STRING,
F7_COLOR TYPE STRING,
F7_CHESSMAN TYPE STRING,
G7_COLOR TYPE STRING,
G7_CHESSMAN TYPE STRING,
H7_COLOR TYPE STRING,
H7_CHESSMAN TYPE STRING,
A8_COLOR TYPE STRING,
A8_CHESSMAN TYPE STRING,
B8_COLOR TYPE STRING,
B8_CHESSMAN TYPE STRING,
C8_COLOR TYPE STRING,
C8_CHESSMAN TYPE STRING,
D8_COLOR TYPE STRING,
D8_CHESSMAN TYPE STRING,
E8_COLOR TYPE STRING,
E8_CHESSMAN TYPE STRING,
F8_COLOR TYPE STRING,
F8_CHESSMAN TYPE STRING,
G8_COLOR TYPE STRING,
G8_CHESSMAN TYPE STRING,
H8_COLOR TYPE STRING,
H8_CHESSMAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DEMO_CHESS_SP2L_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_DEMO_CHESS_SP2L_STR-MANDT sy-vline 
WA_DEMO_CHESS_SP2L_STR-GAMEUUID sy-vline 
WA_DEMO_CHESS_SP2L_STR-MOVECNT sy-vline 
WA_DEMO_CHESS_SP2L_STR-COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-CASTLING_WHITE_LONG sy-vline 
WA_DEMO_CHESS_SP2L_STR-CASTLING_WHITE_SHORT sy-vline 
WA_DEMO_CHESS_SP2L_STR-CASTLING_BLACK_LONG sy-vline 
WA_DEMO_CHESS_SP2L_STR-CASTLING_BLACK_SHORT sy-vline 
WA_DEMO_CHESS_SP2L_STR-A1_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-A1_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-B1_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-B1_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-C1_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-C1_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-D1_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-D1_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-E1_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-E1_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-F1_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-F1_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-G1_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-G1_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-H1_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-H1_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-A2_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-A2_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-B2_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-B2_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-C2_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-C2_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-D2_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-D2_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-E2_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-E2_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-F2_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-F2_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-G2_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-G2_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-H2_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-H2_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-A3_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-A3_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-B3_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-B3_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-C3_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-C3_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-D3_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-D3_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-E3_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-E3_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-F3_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-F3_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-G3_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-G3_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-H3_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-H3_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-A4_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-A4_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-B4_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-B4_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-C4_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-C4_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-D4_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-D4_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-E4_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-E4_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-F4_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-F4_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-G4_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-G4_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-H4_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-H4_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-A5_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-A5_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-B5_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-B5_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-C5_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-C5_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-D5_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-D5_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-E5_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-E5_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-F5_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-F5_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-G5_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-G5_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-H5_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-H5_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-A6_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-A6_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-B6_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-B6_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-C6_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-C6_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-D6_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-D6_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-E6_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-E6_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-F6_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-F6_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-G6_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-G6_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-H6_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-H6_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-A7_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-A7_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-B7_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-B7_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-C7_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-C7_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-D7_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-D7_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-E7_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-E7_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-F7_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-F7_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-G7_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-G7_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-H7_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-H7_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-A8_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-A8_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-B8_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-B8_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-C8_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-C8_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-D8_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-D8_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-E8_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-E8_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-F8_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-F8_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-G8_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-G8_CHESSMAN sy-vline 
WA_DEMO_CHESS_SP2L_STR-H8_COLOR sy-vline 
WA_DEMO_CHESS_SP2L_STR-H8_CHESSMAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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