ABAP Select data from SAP table Q5A4Q into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q5A4Q 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 Q5A4Q. 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 Q5A4Q 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_Q5A4Q TYPE STANDARD TABLE OF Q5A4Q,
      WA_Q5A4Q TYPE Q5A4Q,
      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: <Q5A4Q> TYPE Q5A4Q.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q5A4Q.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q5A4Q
  INTO TABLE IT_Q5A4Q.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q5A4Q
*  INTO TABLE @DATA(IT_Q5A4Q2).
*--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_Q5A4Q INDEX 1 INTO DATA(WA_Q5A4Q2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q5A4Q ASSIGNING <Q5A4Q>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q5A4Q>-KZABW0 = 1.
<Q5A4Q>-KZABW1 = 1.
<Q5A4Q>-KZABW2 = 1.
<Q5A4Q>-KZABW3 = 1.
<Q5A4Q>-KZABW4 = 1.

ENDLOOP.

LOOP AT IT_Q5A4Q INTO WA_Q5A4Q.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q5A4Q-KZABW5, sy-vline,
  WA_Q5A4Q-KZABW6, sy-vline,
  WA_Q5A4Q-KZABW7, sy-vline,
  WA_Q5A4Q-KZABW8, sy-vline,
  WA_Q5A4Q-KZABWK, sy-vline,
  WA_Q5A4Q-KZABWU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q5A4Q 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_Q5A4Q 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_Q5A4Q INTO WA_Q5A4Q.


*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_Q5A4Q_STR, 
KZABW0 TYPE STRING,
KZABW1 TYPE STRING,
KZABW2 TYPE STRING,
KZABW3 TYPE STRING,
KZABW4 TYPE STRING,
KZABW5 TYPE STRING,
KZABW6 TYPE STRING,
KZABW7 TYPE STRING,
KZABW8 TYPE STRING,
KZABWK TYPE STRING,
KZABWU TYPE STRING,
KZABWA TYPE STRING,
KZABWB TYPE STRING,
KZABWF TYPE STRING,
KZABWO TYPE STRING,
PROZ00 TYPE STRING,
PROZ01 TYPE STRING,
PROZ02 TYPE STRING,
PROZ03 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q5A4Q_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_Q5A4Q_STR-KZABW0 sy-vline 
WA_Q5A4Q_STR-KZABW1 sy-vline 
WA_Q5A4Q_STR-KZABW2 sy-vline 
WA_Q5A4Q_STR-KZABW3 sy-vline 
WA_Q5A4Q_STR-KZABW4 sy-vline 
WA_Q5A4Q_STR-KZABW5 sy-vline 
WA_Q5A4Q_STR-KZABW6 sy-vline 
WA_Q5A4Q_STR-KZABW7 sy-vline 
WA_Q5A4Q_STR-KZABW8 sy-vline 
WA_Q5A4Q_STR-KZABWK sy-vline 
WA_Q5A4Q_STR-KZABWU sy-vline 
WA_Q5A4Q_STR-KZABWA sy-vline 
WA_Q5A4Q_STR-KZABWB sy-vline 
WA_Q5A4Q_STR-KZABWF sy-vline 
WA_Q5A4Q_STR-KZABWO sy-vline 
WA_Q5A4Q_STR-PROZ00 sy-vline 
WA_Q5A4Q_STR-PROZ01 sy-vline 
WA_Q5A4Q_STR-PROZ02 sy-vline 
WA_Q5A4Q_STR-PROZ03 sy-vline      INTO ld_text SEPARATED BY SPACE.

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