ABAP Select data from SAP table Q3228 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q3228 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 Q3228. 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 Q3228 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_Q3228 TYPE STANDARD TABLE OF Q3228,
      WA_Q3228 TYPE Q3228,
      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: <Q3228> TYPE Q3228.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q3228.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q3228
  INTO TABLE IT_Q3228.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q3228
*  INTO TABLE @DATA(IT_Q32282).
*--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_Q3228 INDEX 1 INTO DATA(WA_Q32282).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q3228 ASSIGNING <Q3228>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q3228>-BEGDA = 1.
<Q3228>-ENDDA = 1.
<Q3228>-MOLGA = 1.
<Q3228>-ELTYP = 1.
<Q3228>-ELTYP_TXT = 1.

ENDLOOP.

LOOP AT IT_Q3228 INTO WA_Q3228.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q3228-MODEL, sy-vline,
  WA_Q3228-CDATE, sy-vline,
  WA_Q3228-CTIME, sy-vline,
  WA_Q3228-CNAME, sy-vline,
  WA_Q3228-CPROG, sy-vline,
  WA_Q3228-ELQUE01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q3228 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_Q3228 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_Q3228 INTO WA_Q3228.


*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_Q3228_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
MOLGA TYPE STRING,
ELTYP TYPE STRING,
ELTYP_TXT TYPE STRING,
MODEL TYPE STRING,
CDATE TYPE STRING,
CTIME TYPE STRING,
CNAME TYPE STRING,
CPROG TYPE STRING,
ELQUE01 TYPE STRING,
ELRES01 TYPE STRING,
ELQUE_TXT01 TYPE STRING,
ELRES_TXT01 TYPE STRING,
ELQUE02 TYPE STRING,
ELRES02 TYPE STRING,
ELQUE_TXT02 TYPE STRING,
ELRES_TXT02 TYPE STRING,
ELQUE03 TYPE STRING,
ELRES03 TYPE STRING,
ELQUE_TXT03 TYPE STRING,
ELRES_TXT03 TYPE STRING,
ELQUE04 TYPE STRING,
ELRES04 TYPE STRING,
ELQUE_TXT04 TYPE STRING,
ELRES_TXT04 TYPE STRING,
ELQUE05 TYPE STRING,
ELRES05 TYPE STRING,
ELQUE_TXT05 TYPE STRING,
ELRES_TXT05 TYPE STRING,
ELQUE06 TYPE STRING,
ELRES06 TYPE STRING,
ELQUE_TXT06 TYPE STRING,
ELRES_TXT06 TYPE STRING,
ELQUE07 TYPE STRING,
ELRES07 TYPE STRING,
ELQUE_TXT07 TYPE STRING,
ELRES_TXT07 TYPE STRING,
ELQUE08 TYPE STRING,
ELRES08 TYPE STRING,
ELQUE_TXT08 TYPE STRING,
ELRES_TXT08 TYPE STRING,
ELQUE09 TYPE STRING,
ELRES09 TYPE STRING,
ELQUE_TXT09 TYPE STRING,
ELRES_TXT09 TYPE STRING,
ELQUE10 TYPE STRING,
ELRES10 TYPE STRING,
ELQUE_TXT10 TYPE STRING,
ELRES_TXT10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q3228_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_Q3228_STR-BEGDA sy-vline 
WA_Q3228_STR-ENDDA sy-vline 
WA_Q3228_STR-MOLGA sy-vline 
WA_Q3228_STR-ELTYP sy-vline 
WA_Q3228_STR-ELTYP_TXT sy-vline 
WA_Q3228_STR-MODEL sy-vline 
WA_Q3228_STR-CDATE sy-vline 
WA_Q3228_STR-CTIME sy-vline 
WA_Q3228_STR-CNAME sy-vline 
WA_Q3228_STR-CPROG sy-vline 
WA_Q3228_STR-ELQUE01 sy-vline 
WA_Q3228_STR-ELRES01 sy-vline 
WA_Q3228_STR-ELQUE_TXT01 sy-vline 
WA_Q3228_STR-ELRES_TXT01 sy-vline 
WA_Q3228_STR-ELQUE02 sy-vline 
WA_Q3228_STR-ELRES02 sy-vline 
WA_Q3228_STR-ELQUE_TXT02 sy-vline 
WA_Q3228_STR-ELRES_TXT02 sy-vline 
WA_Q3228_STR-ELQUE03 sy-vline 
WA_Q3228_STR-ELRES03 sy-vline 
WA_Q3228_STR-ELQUE_TXT03 sy-vline 
WA_Q3228_STR-ELRES_TXT03 sy-vline 
WA_Q3228_STR-ELQUE04 sy-vline 
WA_Q3228_STR-ELRES04 sy-vline 
WA_Q3228_STR-ELQUE_TXT04 sy-vline 
WA_Q3228_STR-ELRES_TXT04 sy-vline 
WA_Q3228_STR-ELQUE05 sy-vline 
WA_Q3228_STR-ELRES05 sy-vline 
WA_Q3228_STR-ELQUE_TXT05 sy-vline 
WA_Q3228_STR-ELRES_TXT05 sy-vline 
WA_Q3228_STR-ELQUE06 sy-vline 
WA_Q3228_STR-ELRES06 sy-vline 
WA_Q3228_STR-ELQUE_TXT06 sy-vline 
WA_Q3228_STR-ELRES_TXT06 sy-vline 
WA_Q3228_STR-ELQUE07 sy-vline 
WA_Q3228_STR-ELRES07 sy-vline 
WA_Q3228_STR-ELQUE_TXT07 sy-vline 
WA_Q3228_STR-ELRES_TXT07 sy-vline 
WA_Q3228_STR-ELQUE08 sy-vline 
WA_Q3228_STR-ELRES08 sy-vline 
WA_Q3228_STR-ELQUE_TXT08 sy-vline 
WA_Q3228_STR-ELRES_TXT08 sy-vline 
WA_Q3228_STR-ELQUE09 sy-vline 
WA_Q3228_STR-ELRES09 sy-vline 
WA_Q3228_STR-ELQUE_TXT09 sy-vline 
WA_Q3228_STR-ELRES_TXT09 sy-vline 
WA_Q3228_STR-ELQUE10 sy-vline 
WA_Q3228_STR-ELRES10 sy-vline 
WA_Q3228_STR-ELQUE_TXT10 sy-vline 
WA_Q3228_STR-ELRES_TXT10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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