ABAP Select data from SAP table Q0149 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0149 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 Q0149. 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 Q0149 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_Q0149 TYPE STANDARD TABLE OF Q0149,
      WA_Q0149 TYPE Q0149,
      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: <Q0149> TYPE Q0149.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0149.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0149
  INTO TABLE IT_Q0149.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0149
*  INTO TABLE @DATA(IT_Q01492).
*--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_Q0149 INDEX 1 INTO DATA(WA_Q01492).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0149 ASSIGNING <Q0149>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0149>-PERNR = 1.
<Q0149>-INFTY = 1.
<Q0149>-SUBTY = 1.
<Q0149>-OBJPS = 1.
<Q0149>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_Q0149 INTO WA_Q0149.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0149-ENDDA, sy-vline,
  WA_Q0149-BEGDA, sy-vline,
  WA_Q0149-SEQNR, sy-vline,
  WA_Q0149-AEDTM, sy-vline,
  WA_Q0149-UNAME, sy-vline,
  WA_Q0149-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0149 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_Q0149 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_Q0149 INTO WA_Q0149.


*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_Q0149_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
PREAS TYPE STRING,
FZAMT TYPE STRING,
TOTXT TYPE STRING,
REFNO TYPE STRING,
TXSTA TYPE STRING,
STTXT TYPE STRING,
STDIR TYPE STRING,
NODEP TYPE STRING,
AGIND TYPE STRING,
AGTXT TYPE STRING,
PFIND TYPE STRING,
PFTXT TYPE STRING,
DIRPC TYPE STRING,
PCDIR TYPE STRING,
RBAMT TYPE STRING,
EXAMT TYPE STRING,
TXPRO TYPE STRING,
PTEXT TYPE STRING,
FLEXI TYPE STRING,
IBBEG TYPE STRING,
RGTXT TYPE STRING,
WAE01 TYPE STRING,
RSCDE TYPE STRING,
SZTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0149_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_Q0149_STR-PERNR sy-vline 
WA_Q0149_STR-INFTY sy-vline 
WA_Q0149_STR-SUBTY sy-vline 
WA_Q0149_STR-OBJPS sy-vline 
WA_Q0149_STR-SPRPS sy-vline 
WA_Q0149_STR-ENDDA sy-vline 
WA_Q0149_STR-BEGDA sy-vline 
WA_Q0149_STR-SEQNR sy-vline 
WA_Q0149_STR-AEDTM sy-vline 
WA_Q0149_STR-UNAME sy-vline 
WA_Q0149_STR-HISTO sy-vline 
WA_Q0149_STR-ITXNR sy-vline 
WA_Q0149_STR-PREAS sy-vline 
WA_Q0149_STR-FZAMT sy-vline 
WA_Q0149_STR-TOTXT sy-vline 
WA_Q0149_STR-REFNO sy-vline 
WA_Q0149_STR-TXSTA sy-vline 
WA_Q0149_STR-STTXT sy-vline 
WA_Q0149_STR-STDIR sy-vline 
WA_Q0149_STR-NODEP sy-vline 
WA_Q0149_STR-AGIND sy-vline 
WA_Q0149_STR-AGTXT sy-vline 
WA_Q0149_STR-PFIND sy-vline 
WA_Q0149_STR-PFTXT sy-vline 
WA_Q0149_STR-DIRPC sy-vline 
WA_Q0149_STR-PCDIR sy-vline 
WA_Q0149_STR-RBAMT sy-vline 
WA_Q0149_STR-EXAMT sy-vline 
WA_Q0149_STR-TXPRO sy-vline 
WA_Q0149_STR-PTEXT sy-vline 
WA_Q0149_STR-FLEXI sy-vline 
WA_Q0149_STR-IBBEG sy-vline 
WA_Q0149_STR-RGTXT sy-vline 
WA_Q0149_STR-WAE01 sy-vline 
WA_Q0149_STR-RSCDE sy-vline 
WA_Q0149_STR-SZTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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