ABAP Select data from SAP table Q0584 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0584 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 Q0584. 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 Q0584 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_Q0584 TYPE STANDARD TABLE OF Q0584,
      WA_Q0584 TYPE Q0584,
      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: <Q0584> TYPE Q0584.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0584.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0584
  INTO TABLE IT_Q0584.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0584
*  INTO TABLE @DATA(IT_Q05842).
*--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_Q0584 INDEX 1 INTO DATA(WA_Q05842).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0584 ASSIGNING <Q0584>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0584>-HSELF = 1.
<Q0584>-HRENT = 1.
<Q0584>-HPRNT = 1.
<Q0584>-LLMIT = 1.
<Q0584>-LETVL = 1.

ENDLOOP.

LOOP AT IT_Q0584 INTO WA_Q0584.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0584-SEC23, sy-vline,
  WA_Q0584-INT24, sy-vline,
  WA_Q0584-REP24, sy-vline,
  WA_Q0584-OTH24, sy-vline,
  WA_Q0584-WAE01, sy-vline,
  WA_Q0584-WAE02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0584 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_Q0584 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_Q0584 INTO WA_Q0584.


*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_Q0584_STR, 
HSELF TYPE STRING,
HRENT TYPE STRING,
HPRNT TYPE STRING,
LLMIT TYPE STRING,
LETVL TYPE STRING,
SEC23 TYPE STRING,
INT24 TYPE STRING,
REP24 TYPE STRING,
OTH24 TYPE STRING,
WAE01 TYPE STRING,
WAE02 TYPE STRING,
WAE03 TYPE STRING,
WAE04 TYPE STRING,
WAE05 TYPE STRING,
BSPFT TYPE STRING,
CPGLN TYPE STRING,
CPGLS TYPE STRING,
CPGNS TYPE STRING,
CPGSS TYPE STRING,
DVDND TYPE STRING,
INTRS TYPE STRING,
UNSPI TYPE STRING,
TDSOT TYPE STRING,
TDSAT TYPE STRING,
WAE06 TYPE STRING,
WAE07 TYPE STRING,
WAE08 TYPE STRING,
WAE09 TYPE STRING,
WAE10 TYPE STRING,
WAE11 TYPE STRING,
WAE12 TYPE STRING,
WAE13 TYPE STRING,
WAE14 TYPE STRING,
WAE15 TYPE STRING,
LENAM TYPE STRING,
LEAD1 TYPE STRING,
LEAD2 TYPE STRING,
LEAD3 TYPE STRING,
LEPAN TYPE STRING,
LETYP TYPE STRING,
DVDED TYPE STRING,
WAE16 TYPE STRING,
INTST TYPE STRING,
WAE17 TYPE STRING,
DEDIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0584_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_Q0584_STR-HSELF sy-vline 
WA_Q0584_STR-HRENT sy-vline 
WA_Q0584_STR-HPRNT sy-vline 
WA_Q0584_STR-LLMIT sy-vline 
WA_Q0584_STR-LETVL sy-vline 
WA_Q0584_STR-SEC23 sy-vline 
WA_Q0584_STR-INT24 sy-vline 
WA_Q0584_STR-REP24 sy-vline 
WA_Q0584_STR-OTH24 sy-vline 
WA_Q0584_STR-WAE01 sy-vline 
WA_Q0584_STR-WAE02 sy-vline 
WA_Q0584_STR-WAE03 sy-vline 
WA_Q0584_STR-WAE04 sy-vline 
WA_Q0584_STR-WAE05 sy-vline 
WA_Q0584_STR-BSPFT sy-vline 
WA_Q0584_STR-CPGLN sy-vline 
WA_Q0584_STR-CPGLS sy-vline 
WA_Q0584_STR-CPGNS sy-vline 
WA_Q0584_STR-CPGSS sy-vline 
WA_Q0584_STR-DVDND sy-vline 
WA_Q0584_STR-INTRS sy-vline 
WA_Q0584_STR-UNSPI sy-vline 
WA_Q0584_STR-TDSOT sy-vline 
WA_Q0584_STR-TDSAT sy-vline 
WA_Q0584_STR-WAE06 sy-vline 
WA_Q0584_STR-WAE07 sy-vline 
WA_Q0584_STR-WAE08 sy-vline 
WA_Q0584_STR-WAE09 sy-vline 
WA_Q0584_STR-WAE10 sy-vline 
WA_Q0584_STR-WAE11 sy-vline 
WA_Q0584_STR-WAE12 sy-vline 
WA_Q0584_STR-WAE13 sy-vline 
WA_Q0584_STR-WAE14 sy-vline 
WA_Q0584_STR-WAE15 sy-vline 
WA_Q0584_STR-LENAM sy-vline 
WA_Q0584_STR-LEAD1 sy-vline 
WA_Q0584_STR-LEAD2 sy-vline 
WA_Q0584_STR-LEAD3 sy-vline 
WA_Q0584_STR-LEPAN sy-vline 
WA_Q0584_STR-LETYP sy-vline 
WA_Q0584_STR-DVDED sy-vline 
WA_Q0584_STR-WAE16 sy-vline 
WA_Q0584_STR-INTST sy-vline 
WA_Q0584_STR-WAE17 sy-vline 
WA_Q0584_STR-DEDIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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