ABAP Select data from SAP table TQSCR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TQSCR
*  INTO TABLE @DATA(IT_TQSCR2).
*--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_TQSCR INDEX 1 INTO DATA(WA_TQSCR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TQSCR>-MANDT = 1.
<TQSCR>-QMART = 1.
<TQSCR>-TABCD = 1.
<TQSCR>-AKTYP = 1.
<TQSCR>-QMTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TQSCR-IKONE, sy-vline,
  WA_TQSCR-ACTIVE, sy-vline,
  WA_TQSCR-SUB01, sy-vline,
  WA_TQSCR-SUB02, sy-vline,
  WA_TQSCR-SUB03, sy-vline,
  WA_TQSCR-SUB04, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TQSCR 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_TQSCR 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_TQSCR INTO WA_TQSCR.


*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.

*Conversion exit ALPHA, internal->external for field SCRAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TQSCR-SCRAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TQSCR-SCRAR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TQSCR_STR, 
MANDT TYPE STRING,
QMART TYPE STRING,
TABCD TYPE STRING,
AKTYP TYPE STRING,
QMTYP TYPE STRING,
IKONE TYPE STRING,
ACTIVE TYPE STRING,
SUB01 TYPE STRING,
SUB02 TYPE STRING,
SUB03 TYPE STRING,
SUB04 TYPE STRING,
SUB05 TYPE STRING,
SCRAR TYPE STRING,
DYN01 TYPE STRING,
DYN02 TYPE STRING,
DYN03 TYPE STRING,
DYN04 TYPE STRING,
DYN05 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TQSCR_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_TQSCR_STR-MANDT sy-vline 
WA_TQSCR_STR-QMART sy-vline 
WA_TQSCR_STR-TABCD sy-vline 
WA_TQSCR_STR-AKTYP sy-vline 
WA_TQSCR_STR-QMTYP sy-vline 
WA_TQSCR_STR-IKONE sy-vline 
WA_TQSCR_STR-ACTIVE sy-vline 
WA_TQSCR_STR-SUB01 sy-vline 
WA_TQSCR_STR-SUB02 sy-vline 
WA_TQSCR_STR-SUB03 sy-vline 
WA_TQSCR_STR-SUB04 sy-vline 
WA_TQSCR_STR-SUB05 sy-vline 
WA_TQSCR_STR-SCRAR sy-vline 
WA_TQSCR_STR-DYN01 sy-vline 
WA_TQSCR_STR-DYN02 sy-vline 
WA_TQSCR_STR-DYN03 sy-vline 
WA_TQSCR_STR-DYN04 sy-vline 
WA_TQSCR_STR-DYN05 sy-vline      INTO ld_text SEPARATED BY SPACE.

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