ABAP Select data from SAP table Q559P into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q559P 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 Q559P. 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 Q559P 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_Q559P TYPE STANDARD TABLE OF Q559P,
      WA_Q559P TYPE Q559P,
      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: <Q559P> TYPE Q559P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q559P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q559P
  INTO TABLE IT_Q559P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q559P
*  INTO TABLE @DATA(IT_Q559P2).
*--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_Q559P INDEX 1 INTO DATA(WA_Q559P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q559P ASSIGNING <Q559P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q559P>-UPLIM = 1.
<Q559P>-AGUNT = 1.
<Q559P>-CKPTX = 1.
<Q559P>-ZTEXT = 1.
<Q559P>-CPPTX = 1.

ENDLOOP.

LOOP AT IT_Q559P INTO WA_Q559P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q559P-CPUNT, sy-vline,
  WA_Q559P-ZTXST, sy-vline,
  WA_Q559P-CZTXT, sy-vline,
  WA_Q559P-XVZZT, sy-vline,
  WA_Q559P-LGTXT, sy-vline,
  WA_Q559P-XVZLG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q559P 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_Q559P 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_Q559P INTO WA_Q559P.


*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_Q559P_STR, 
UPLIM TYPE STRING,
AGUNT TYPE STRING,
CKPTX TYPE STRING,
ZTEXT TYPE STRING,
CPPTX TYPE STRING,
CPUNT TYPE STRING,
ZTXST TYPE STRING,
CZTXT TYPE STRING,
XVZZT TYPE STRING,
LGTXT TYPE STRING,
XVZLG TYPE STRING,
CMTXT TYPE STRING,
RMTXT TYPE STRING,
CKDAY TYPE STRING,
CKTIM TYPE STRING,
CKPAY TYPE STRING,
CKWWK TYPE STRING,
CKPER TYPE STRING,
CKEND TYPE STRING,
CKEPM TYPE STRING,
CPTIM TYPE STRING,
CPWWK TYPE STRING,
CPPAY TYPE STRING,
CPPMD TYPE STRING,
CPDAY TYPE STRING,
CPINT TYPE STRING,
CPPER TYPE STRING,
CMNTE TYPE STRING,
CMINF TYPE STRING,
CMERR TYPE STRING,
CMABT TYPE STRING,
MDMAX TYPE STRING,
MDMIN TYPE STRING,
MDCUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q559P_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_Q559P_STR-UPLIM sy-vline 
WA_Q559P_STR-AGUNT sy-vline 
WA_Q559P_STR-CKPTX sy-vline 
WA_Q559P_STR-ZTEXT sy-vline 
WA_Q559P_STR-CPPTX sy-vline 
WA_Q559P_STR-CPUNT sy-vline 
WA_Q559P_STR-ZTXST sy-vline 
WA_Q559P_STR-CZTXT sy-vline 
WA_Q559P_STR-XVZZT sy-vline 
WA_Q559P_STR-LGTXT sy-vline 
WA_Q559P_STR-XVZLG sy-vline 
WA_Q559P_STR-CMTXT sy-vline 
WA_Q559P_STR-RMTXT sy-vline 
WA_Q559P_STR-CKDAY sy-vline 
WA_Q559P_STR-CKTIM sy-vline 
WA_Q559P_STR-CKPAY sy-vline 
WA_Q559P_STR-CKWWK sy-vline 
WA_Q559P_STR-CKPER sy-vline 
WA_Q559P_STR-CKEND sy-vline 
WA_Q559P_STR-CKEPM sy-vline 
WA_Q559P_STR-CPTIM sy-vline 
WA_Q559P_STR-CPWWK sy-vline 
WA_Q559P_STR-CPPAY sy-vline 
WA_Q559P_STR-CPPMD sy-vline 
WA_Q559P_STR-CPDAY sy-vline 
WA_Q559P_STR-CPINT sy-vline 
WA_Q559P_STR-CPPER sy-vline 
WA_Q559P_STR-CMNTE sy-vline 
WA_Q559P_STR-CMINF sy-vline 
WA_Q559P_STR-CMERR sy-vline 
WA_Q559P_STR-CMABT sy-vline 
WA_Q559P_STR-MDMAX sy-vline 
WA_Q559P_STR-MDMIN sy-vline 
WA_Q559P_STR-MDCUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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