ABAP Select data from SAP table QASER into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QASER 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 QASER. 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 QASER 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_QASER TYPE STANDARD TABLE OF QASER,
      WA_QASER TYPE QASER,
      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: <QASER> TYPE QASER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QASER
*  INTO TABLE @DATA(IT_QASER2).
*--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_QASER INDEX 1 INTO DATA(WA_QASER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QASER>-VORGLFNR = 1.
<QASER>-MERKNR = 1.
<QASER>-PROBENR = 1.
<QASER>-STUECKNR = 1.
<QASER>-UPSL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QASER-MARK, sy-vline,
  WA_QASER-DETAILERG, sy-vline,
  WA_QASER-ATTRIBUT, sy-vline,
  WA_QASER-ERSTELLER, sy-vline,
  WA_QASER-ERSTELLDAT, sy-vline,
  WA_QASER-AENDERER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QASER 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_QASER 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_QASER INTO WA_QASER.


*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.

*Conversion exit ISOLA, internal->external for field LTEXTSPR
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_QASER-LTEXTSPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASER-LTEXTSPR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSION1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QASER-VERSION1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASER-VERSION1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSION2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QASER-VERSION2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASER-VERSION2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSION3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QASER-VERSION3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASER-VERSION3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSION4
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QASER-VERSION4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASER-VERSION4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSION5
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QASER-VERSION5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASER-VERSION5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SERIALNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QASER-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASER-SERIALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MASCHINE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QASER-MASCHINE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QASER-MASCHINE.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_QASER_STR, 
VORGLFNR TYPE STRING,
MERKNR TYPE STRING,
PROBENR TYPE STRING,
STUECKNR TYPE STRING,
UPSL TYPE STRING,
MARK TYPE STRING,
DETAILERG TYPE STRING,
ATTRIBUT TYPE STRING,
ERSTELLER TYPE STRING,
ERSTELLDAT TYPE STRING,
AENDERER TYPE STRING,
AENDERDAT TYPE STRING,
PRUEFER TYPE STRING,
PRUEFDATUV TYPE STRING,
PRUEFDATUB TYPE STRING,
PRUEFZEITV TYPE STRING,
PRUEFZEITB TYPE STRING,
PRUEFBEMKT TYPE STRING,
PRLTEXTKZ TYPE STRING,
LTEXTSPR TYPE STRING,
MESSWERTNI TYPE STRING,
MESSWERT TYPE STRING,
KATALGART1 TYPE STRING,
GRUPPE1 TYPE STRING,
CODE1 TYPE STRING,
VERSION1 TYPE STRING,
KATALGART2 TYPE STRING,
GRUPPE2 TYPE STRING,
CODE2 TYPE STRING,
VERSION2 TYPE STRING,
KATALGART3 TYPE STRING,
GRUPPE3 TYPE STRING,
CODE3 TYPE STRING,
VERSION3 TYPE STRING,
KATALGART4 TYPE STRING,
GRUPPE4 TYPE STRING,
CODE4 TYPE STRING,
VERSION4 TYPE STRING,
KATALGART5 TYPE STRING,
GRUPPE5 TYPE STRING,
CODE5 TYPE STRING,
VERSION5 TYPE STRING,
ANZFEHLER TYPE STRING,
FEHLKLAS TYPE STRING,
MBEWERTG TYPE STRING,
ESTUECKNR TYPE STRING,
SERIALNR TYPE STRING,
MASCHINE TYPE STRING,
POSITION TYPE STRING,
AENDBELEG TYPE STRING,
ZEITERSTL TYPE STRING,
ZEITAEND TYPE STRING,
ORIGINAL_INPUT TYPE STRING,
DIFF_DEC_PLACES TYPE STRING,
INPPROC_READY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QASER_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_QASER_STR-VORGLFNR sy-vline 
WA_QASER_STR-MERKNR sy-vline 
WA_QASER_STR-PROBENR sy-vline 
WA_QASER_STR-STUECKNR sy-vline 
WA_QASER_STR-UPSL sy-vline 
WA_QASER_STR-MARK sy-vline 
WA_QASER_STR-DETAILERG sy-vline 
WA_QASER_STR-ATTRIBUT sy-vline 
WA_QASER_STR-ERSTELLER sy-vline 
WA_QASER_STR-ERSTELLDAT sy-vline 
WA_QASER_STR-AENDERER sy-vline 
WA_QASER_STR-AENDERDAT sy-vline 
WA_QASER_STR-PRUEFER sy-vline 
WA_QASER_STR-PRUEFDATUV sy-vline 
WA_QASER_STR-PRUEFDATUB sy-vline 
WA_QASER_STR-PRUEFZEITV sy-vline 
WA_QASER_STR-PRUEFZEITB sy-vline 
WA_QASER_STR-PRUEFBEMKT sy-vline 
WA_QASER_STR-PRLTEXTKZ sy-vline 
WA_QASER_STR-LTEXTSPR sy-vline 
WA_QASER_STR-MESSWERTNI sy-vline 
WA_QASER_STR-MESSWERT sy-vline 
WA_QASER_STR-KATALGART1 sy-vline 
WA_QASER_STR-GRUPPE1 sy-vline 
WA_QASER_STR-CODE1 sy-vline 
WA_QASER_STR-VERSION1 sy-vline 
WA_QASER_STR-KATALGART2 sy-vline 
WA_QASER_STR-GRUPPE2 sy-vline 
WA_QASER_STR-CODE2 sy-vline 
WA_QASER_STR-VERSION2 sy-vline 
WA_QASER_STR-KATALGART3 sy-vline 
WA_QASER_STR-GRUPPE3 sy-vline 
WA_QASER_STR-CODE3 sy-vline 
WA_QASER_STR-VERSION3 sy-vline 
WA_QASER_STR-KATALGART4 sy-vline 
WA_QASER_STR-GRUPPE4 sy-vline 
WA_QASER_STR-CODE4 sy-vline 
WA_QASER_STR-VERSION4 sy-vline 
WA_QASER_STR-KATALGART5 sy-vline 
WA_QASER_STR-GRUPPE5 sy-vline 
WA_QASER_STR-CODE5 sy-vline 
WA_QASER_STR-VERSION5 sy-vline 
WA_QASER_STR-ANZFEHLER sy-vline 
WA_QASER_STR-FEHLKLAS sy-vline 
WA_QASER_STR-MBEWERTG sy-vline 
WA_QASER_STR-ESTUECKNR sy-vline 
WA_QASER_STR-SERIALNR sy-vline 
WA_QASER_STR-MASCHINE sy-vline 
WA_QASER_STR-POSITION sy-vline 
WA_QASER_STR-AENDBELEG sy-vline 
WA_QASER_STR-ZEITERSTL sy-vline 
WA_QASER_STR-ZEITAEND sy-vline 
WA_QASER_STR-ORIGINAL_INPUT sy-vline 
WA_QASER_STR-DIFF_DEC_PLACES sy-vline 
WA_QASER_STR-INPPROC_READY sy-vline      INTO ld_text SEPARATED BY SPACE.

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