ABAP Select data from SAP table Q3529 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q3529 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 Q3529. 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 Q3529 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_Q3529 TYPE STANDARD TABLE OF Q3529,
      WA_Q3529 TYPE Q3529,
      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: <Q3529> TYPE Q3529.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q3529.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q3529
  INTO TABLE IT_Q3529.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q3529
*  INTO TABLE @DATA(IT_Q35292).
*--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_Q3529 INDEX 1 INTO DATA(WA_Q35292).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q3529 ASSIGNING <Q3529>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q3529>-SLART = 1.
<Q3529>-STEXT = 1.
<Q3529>-INSTI = 1.
<Q3529>-ANZKL = 1.
<Q3529>-ANZEH = 1.

ENDLOOP.

LOOP AT IT_Q3529 INTO WA_Q3529.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q3529-SLAND, sy-vline,
  WA_Q3529-INSAT, sy-vline,
  WA_Q3529-INSTE, sy-vline,
  WA_Q3529-INSCT, sy-vline,
  WA_Q3529-INSCA, sy-vline,
  WA_Q3529-INSMO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q3529 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_Q3529 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_Q3529 INTO WA_Q3529.


*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_Q3529_STR, 
SLART TYPE STRING,
STEXT TYPE STRING,
INSTI TYPE STRING,
ANZKL TYPE STRING,
ANZEH TYPE STRING,
SLAND TYPE STRING,
INSAT TYPE STRING,
INSTE TYPE STRING,
INSCT TYPE STRING,
INSCA TYPE STRING,
INSMO TYPE STRING,
INSMT TYPE STRING,
ACAQU TYPE STRING,
ACAQT TYPE STRING,
ACAQM TYPE STRING,
ACAQD TYPE STRING,
ACACM TYPE STRING,
ACACD TYPE STRING,
SLABS TYPE STRING,
FACH3 TYPE STRING,
EINHT TYPE STRING,
LANDX TYPE STRING,
ACQID TYPE STRING,
ACCID TYPE STRING,
BFWKQ TYPE STRING,
AUSBI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q3529_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_Q3529_STR-SLART sy-vline 
WA_Q3529_STR-STEXT sy-vline 
WA_Q3529_STR-INSTI sy-vline 
WA_Q3529_STR-ANZKL sy-vline 
WA_Q3529_STR-ANZEH sy-vline 
WA_Q3529_STR-SLAND sy-vline 
WA_Q3529_STR-INSAT sy-vline 
WA_Q3529_STR-INSTE sy-vline 
WA_Q3529_STR-INSCT sy-vline 
WA_Q3529_STR-INSCA sy-vline 
WA_Q3529_STR-INSMO sy-vline 
WA_Q3529_STR-INSMT sy-vline 
WA_Q3529_STR-ACAQU sy-vline 
WA_Q3529_STR-ACAQT sy-vline 
WA_Q3529_STR-ACAQM sy-vline 
WA_Q3529_STR-ACAQD sy-vline 
WA_Q3529_STR-ACACM sy-vline 
WA_Q3529_STR-ACACD sy-vline 
WA_Q3529_STR-SLABS sy-vline 
WA_Q3529_STR-FACH3 sy-vline 
WA_Q3529_STR-EINHT sy-vline 
WA_Q3529_STR-LANDX sy-vline 
WA_Q3529_STR-ACQID sy-vline 
WA_Q3529_STR-ACCID sy-vline 
WA_Q3529_STR-BFWKQ sy-vline 
WA_Q3529_STR-AUSBI sy-vline      INTO ld_text SEPARATED BY SPACE.

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