ABAP Select data from SAP table QSTQNPRINT 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 QSTQNPRINT 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 QSTQNPRINT. 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 QSTQNPRINT 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_QSTQNPRINT TYPE STANDARD TABLE OF QSTQNPRINT,
      WA_QSTQNPRINT TYPE QSTQNPRINT,
      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: <QSTQNPRINT> TYPE QSTQNPRINT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QSTQNPRINT
*  INTO TABLE @DATA(IT_QSTQNPRINT2).
*--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_QSTQNPRINT INDEX 1 INTO DATA(WA_QSTQNPRINT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QSTQNPRINT>-MANDT = 1.
<QSTQNPRINT>-PHYNR = 1.
<QSTQNPRINT>-OBJNR = 1.
<QSTQNPRINT>-STSMA = 1.
<QSTQNPRINT>-PRART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QSTQNPRINT-PRTYP, sy-vline,
  WA_QSTQNPRINT-PN_NR, sy-vline,
  WA_QSTQNPRINT-XMANU, sy-vline,
  WA_QSTQNPRINT-GBTYP, sy-vline,
  WA_QSTQNPRINT-MENGE, sy-vline,
  WA_QSTQNPRINT-MEINH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QSTQNPRINT 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_QSTQNPRINT 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_QSTQNPRINT INTO WA_QSTQNPRINT.


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

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QSTQNPRINT-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTQNPRINT-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLOS2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QSTQNPRINT-PLOS2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTQNPRINT-PLOS2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_QSTQNPRINT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTQNPRINT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field REVLV
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_QSTQNPRINT-REVLV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTQNPRINT-REVLV.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field GEBEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QSTQNPRINT-GEBEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTQNPRINT-GEBEH.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field ENTORT
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_QSTQNPRINT-ENTORT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTQNPRINT-ENTORT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DFTUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QSTQNPRINT-DFTUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTQNPRINT-DFTUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field STOUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QSTQNPRINT-STOUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTQNPRINT-STOUNIT.
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_QSTQNPRINT_STR, 
MANDT TYPE STRING,
PHYNR TYPE STRING,
OBJNR TYPE STRING,
STSMA TYPE STRING,
PRART TYPE STRING,
PRTYP TYPE STRING,
PN_NR TYPE STRING,
XMANU TYPE STRING,
GBTYP TYPE STRING,
MENGE TYPE STRING,
MEINH TYPE STRING,
PLOS2 TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
REVLV TYPE STRING,
CHARG TYPE STRING,
KTEXT TYPE STRING,
QAUTH TYPE STRING,
PNVER TYPE STRING,
PNVEV TYPE STRING,
PNPOS TYPE STRING,
GEBEH TYPE STRING,
TPBIS TYPE STRING,
LGORT TYPE STRING,
ABORT TYPE STRING,
ABDAU TYPE STRING,
ABDAT TYPE STRING,
ABINF TYPE STRING,
AENNA TYPE STRING,
AENDT TYPE STRING,
AENZT TYPE STRING,
VENUM TYPE STRING,
VEPOS TYPE STRING,
ADDON_DUMMY TYPE STRING,
PRIMPACK TYPE STRING,
STABICON TYPE STRING,
EINGDT TYPE STRING,
EINLDT TYPE STRING,
AUSLDT TYPE STRING,
ENTORT TYPE STRING,
INFEORT TYPE STRING,
ENTDATUM TYPE STRING,
ENTZEIT TYPE STRING,
BEARBEITER TYPE STRING,
LABOR TYPE STRING,
DUMMY_QPRS_INCL_EEW_PS TYPE STRING,
PRARTKTXT TYPE STRING,
PRTYPTXT TYPE STRING,
GBTYPKTEXT TYPE STRING,
PRIMPACKTXT TYPE STRING,
MAKTX TYPE STRING,
WERKSNAME TYPE STRING,
KURZTXTAO TYPE STRING,
STABICONTXT TYPE STRING,
STATU TYPE STRING,
ANWST TYPE STRING,
AUFBX TYPE STRING,
DFTQUANT TYPE STRING,
DFTUNIT TYPE STRING,
STOQUANT TYPE STRING,
STOUNIT TYPE STRING,
INSPNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QSTQNPRINT_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_QSTQNPRINT_STR-MANDT sy-vline 
WA_QSTQNPRINT_STR-PHYNR sy-vline 
WA_QSTQNPRINT_STR-OBJNR sy-vline 
WA_QSTQNPRINT_STR-STSMA sy-vline 
WA_QSTQNPRINT_STR-PRART sy-vline 
WA_QSTQNPRINT_STR-PRTYP sy-vline 
WA_QSTQNPRINT_STR-PN_NR sy-vline 
WA_QSTQNPRINT_STR-XMANU sy-vline 
WA_QSTQNPRINT_STR-GBTYP sy-vline 
WA_QSTQNPRINT_STR-MENGE sy-vline 
WA_QSTQNPRINT_STR-MEINH sy-vline 
WA_QSTQNPRINT_STR-PLOS2 sy-vline 
WA_QSTQNPRINT_STR-MATNR sy-vline 
WA_QSTQNPRINT_STR-WERKS sy-vline 
WA_QSTQNPRINT_STR-REVLV sy-vline 
WA_QSTQNPRINT_STR-CHARG sy-vline 
WA_QSTQNPRINT_STR-KTEXT sy-vline 
WA_QSTQNPRINT_STR-QAUTH sy-vline 
WA_QSTQNPRINT_STR-PNVER sy-vline 
WA_QSTQNPRINT_STR-PNVEV sy-vline 
WA_QSTQNPRINT_STR-PNPOS sy-vline 
WA_QSTQNPRINT_STR-GEBEH sy-vline 
WA_QSTQNPRINT_STR-TPBIS sy-vline 
WA_QSTQNPRINT_STR-LGORT sy-vline 
WA_QSTQNPRINT_STR-ABORT sy-vline 
WA_QSTQNPRINT_STR-ABDAU sy-vline 
WA_QSTQNPRINT_STR-ABDAT sy-vline 
WA_QSTQNPRINT_STR-ABINF sy-vline 
WA_QSTQNPRINT_STR-AENNA sy-vline 
WA_QSTQNPRINT_STR-AENDT sy-vline 
WA_QSTQNPRINT_STR-AENZT sy-vline 
WA_QSTQNPRINT_STR-VENUM sy-vline 
WA_QSTQNPRINT_STR-VEPOS sy-vline 
WA_QSTQNPRINT_STR-ADDON_DUMMY sy-vline 
WA_QSTQNPRINT_STR-PRIMPACK sy-vline 
WA_QSTQNPRINT_STR-STABICON sy-vline 
WA_QSTQNPRINT_STR-EINGDT sy-vline 
WA_QSTQNPRINT_STR-EINLDT sy-vline 
WA_QSTQNPRINT_STR-AUSLDT sy-vline 
WA_QSTQNPRINT_STR-ENTORT sy-vline 
WA_QSTQNPRINT_STR-INFEORT sy-vline 
WA_QSTQNPRINT_STR-ENTDATUM sy-vline 
WA_QSTQNPRINT_STR-ENTZEIT sy-vline 
WA_QSTQNPRINT_STR-BEARBEITER sy-vline 
WA_QSTQNPRINT_STR-LABOR sy-vline 
WA_QSTQNPRINT_STR-DUMMY_QPRS_INCL_EEW_PS sy-vline 
WA_QSTQNPRINT_STR-PRARTKTXT sy-vline 
WA_QSTQNPRINT_STR-PRTYPTXT sy-vline 
WA_QSTQNPRINT_STR-GBTYPKTEXT sy-vline 
WA_QSTQNPRINT_STR-PRIMPACKTXT sy-vline 
WA_QSTQNPRINT_STR-MAKTX sy-vline 
WA_QSTQNPRINT_STR-WERKSNAME sy-vline 
WA_QSTQNPRINT_STR-KURZTXTAO sy-vline 
WA_QSTQNPRINT_STR-STABICONTXT sy-vline 
WA_QSTQNPRINT_STR-STATU sy-vline 
WA_QSTQNPRINT_STR-ANWST sy-vline 
WA_QSTQNPRINT_STR-AUFBX sy-vline 
WA_QSTQNPRINT_STR-DFTQUANT sy-vline 
WA_QSTQNPRINT_STR-DFTUNIT sy-vline 
WA_QSTQNPRINT_STR-STOQUANT sy-vline 
WA_QSTQNPRINT_STR-STOUNIT sy-vline 
WA_QSTQNPRINT_STR-INSPNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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