ABAP Select data from SAP table Q0204 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0204 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 Q0204. 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 Q0204 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_Q0204 TYPE STANDARD TABLE OF Q0204,
      WA_Q0204 TYPE Q0204,
      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: <Q0204> TYPE Q0204.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0204.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0204
  INTO TABLE IT_Q0204.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0204
*  INTO TABLE @DATA(IT_Q02042).
*--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_Q0204 INDEX 1 INTO DATA(WA_Q02042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0204 ASSIGNING <Q0204>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0204>-BOLIGX = 1.
<Q0204>-KSOM2X = 1.
<Q0204>-KSOM1X = 1.
<Q0204>-DAIN1X = 1.
<Q0204>-DAIN2X = 1.

ENDLOOP.

LOOP AT IT_Q0204 INTO WA_Q0204.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0204-DAIN3X, sy-vline,
  WA_Q0204-DAIN4X, sy-vline,
  WA_Q0204-DAIN5X, sy-vline,
  WA_Q0204-DAIN6X, sy-vline,
  WA_Q0204-DAIN7X, sy-vline,
  WA_Q0204-DAIN8X, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0204 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_Q0204 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_Q0204 INTO WA_Q0204.


*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_Q0204_STR, 
BOLIGX TYPE STRING,
KSOM2X TYPE STRING,
KSOM1X TYPE STRING,
DAIN1X TYPE STRING,
DAIN2X TYPE STRING,
DAIN3X TYPE STRING,
DAIN4X TYPE STRING,
DAIN5X TYPE STRING,
DAIN6X TYPE STRING,
DAIN7X TYPE STRING,
DAIN8X TYPE STRING,
DAIN9X TYPE STRING,
ARBS2X TYPE STRING,
ARBS3X TYPE STRING,
ECOD1X TYPE STRING,
ECOD2X TYPE STRING,
ECOD3X TYPE STRING,
WCOD1X TYPE STRING,
WCOD2X TYPE STRING,
WCOD3X TYPE STRING,
COL23X TYPE STRING,
DAFERX TYPE STRING,
VAR01X TYPE STRING,
VAR02X TYPE STRING,
VAR03X TYPE STRING,
VAR04X TYPE STRING,
VAR05X TYPE STRING,
VAR06X TYPE STRING,
VAR07X TYPE STRING,
VAR08X TYPE STRING,
VAR09X TYPE STRING,
VAR10X TYPE STRING,
VAR11X TYPE STRING,
VAR12X TYPE STRING,
VAR13X TYPE STRING,
VAR14X TYPE STRING,
VAR15X TYPE STRING,
VAR16X TYPE STRING,
VAR17X TYPE STRING,
VAR18X TYPE STRING,
VAR19X TYPE STRING,
VAR20X TYPE STRING,
VAR21X TYPE STRING,
VAR22X TYPE STRING,
VAR23X TYPE STRING,
VAR24X TYPE STRING,
VAR25X TYPE STRING,
VAR26X TYPE STRING,
VAR27X TYPE STRING,
VAR28X TYPE STRING,
VAR29X TYPE STRING,
VAR30X TYPE STRING,
TARARX TYPE STRING,
GRAUSX TYPE STRING,
ARBS4X TYPE STRING,
CTTYPX TYPE STRING,
HERKNX TYPE STRING,
RCLDTX TYPE STRING,
ARBFKX TYPE STRING,
ARBSTX TYPE STRING,
MGTNVX TYPE STRING,
FAPOSX TYPE STRING,
FAAUSX TYPE STRING,
ENRSNX TYPE STRING,
FAX01X TYPE STRING,
FAX02X TYPE STRING,
FAX03X TYPE STRING,
SYSPG TYPE STRING,
SYSPL TYPE STRING,
SYSGT TYPE STRING,
PAYGT TYPE STRING,
STTYPX TYPE STRING,
BSGRD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0204_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_Q0204_STR-BOLIGX sy-vline 
WA_Q0204_STR-KSOM2X sy-vline 
WA_Q0204_STR-KSOM1X sy-vline 
WA_Q0204_STR-DAIN1X sy-vline 
WA_Q0204_STR-DAIN2X sy-vline 
WA_Q0204_STR-DAIN3X sy-vline 
WA_Q0204_STR-DAIN4X sy-vline 
WA_Q0204_STR-DAIN5X sy-vline 
WA_Q0204_STR-DAIN6X sy-vline 
WA_Q0204_STR-DAIN7X sy-vline 
WA_Q0204_STR-DAIN8X sy-vline 
WA_Q0204_STR-DAIN9X sy-vline 
WA_Q0204_STR-ARBS2X sy-vline 
WA_Q0204_STR-ARBS3X sy-vline 
WA_Q0204_STR-ECOD1X sy-vline 
WA_Q0204_STR-ECOD2X sy-vline 
WA_Q0204_STR-ECOD3X sy-vline 
WA_Q0204_STR-WCOD1X sy-vline 
WA_Q0204_STR-WCOD2X sy-vline 
WA_Q0204_STR-WCOD3X sy-vline 
WA_Q0204_STR-COL23X sy-vline 
WA_Q0204_STR-DAFERX sy-vline 
WA_Q0204_STR-VAR01X sy-vline 
WA_Q0204_STR-VAR02X sy-vline 
WA_Q0204_STR-VAR03X sy-vline 
WA_Q0204_STR-VAR04X sy-vline 
WA_Q0204_STR-VAR05X sy-vline 
WA_Q0204_STR-VAR06X sy-vline 
WA_Q0204_STR-VAR07X sy-vline 
WA_Q0204_STR-VAR08X sy-vline 
WA_Q0204_STR-VAR09X sy-vline 
WA_Q0204_STR-VAR10X sy-vline 
WA_Q0204_STR-VAR11X sy-vline 
WA_Q0204_STR-VAR12X sy-vline 
WA_Q0204_STR-VAR13X sy-vline 
WA_Q0204_STR-VAR14X sy-vline 
WA_Q0204_STR-VAR15X sy-vline 
WA_Q0204_STR-VAR16X sy-vline 
WA_Q0204_STR-VAR17X sy-vline 
WA_Q0204_STR-VAR18X sy-vline 
WA_Q0204_STR-VAR19X sy-vline 
WA_Q0204_STR-VAR20X sy-vline 
WA_Q0204_STR-VAR21X sy-vline 
WA_Q0204_STR-VAR22X sy-vline 
WA_Q0204_STR-VAR23X sy-vline 
WA_Q0204_STR-VAR24X sy-vline 
WA_Q0204_STR-VAR25X sy-vline 
WA_Q0204_STR-VAR26X sy-vline 
WA_Q0204_STR-VAR27X sy-vline 
WA_Q0204_STR-VAR28X sy-vline 
WA_Q0204_STR-VAR29X sy-vline 
WA_Q0204_STR-VAR30X sy-vline 
WA_Q0204_STR-TARARX sy-vline 
WA_Q0204_STR-GRAUSX sy-vline 
WA_Q0204_STR-ARBS4X sy-vline 
WA_Q0204_STR-CTTYPX sy-vline 
WA_Q0204_STR-HERKNX sy-vline 
WA_Q0204_STR-RCLDTX sy-vline 
WA_Q0204_STR-ARBFKX sy-vline 
WA_Q0204_STR-ARBSTX sy-vline 
WA_Q0204_STR-MGTNVX sy-vline 
WA_Q0204_STR-FAPOSX sy-vline 
WA_Q0204_STR-FAAUSX sy-vline 
WA_Q0204_STR-ENRSNX sy-vline 
WA_Q0204_STR-FAX01X sy-vline 
WA_Q0204_STR-FAX02X sy-vline 
WA_Q0204_STR-FAX03X sy-vline 
WA_Q0204_STR-SYSPG sy-vline 
WA_Q0204_STR-SYSPL sy-vline 
WA_Q0204_STR-SYSGT sy-vline 
WA_Q0204_STR-PAYGT sy-vline 
WA_Q0204_STR-STTYPX sy-vline 
WA_Q0204_STR-BSGRD sy-vline      INTO ld_text SEPARATED BY SPACE.

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