ABAP Select data from SAP table QEWLL 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 QEWLL 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 QEWLL. 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 QEWLL 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_QEWLL TYPE STANDARD TABLE OF QEWLL,
      WA_QEWLL TYPE QEWLL,
      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: <QEWLL> TYPE QEWLL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QEWLL
*  INTO TABLE @DATA(IT_QEWLL2).
*--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_QEWLL INDEX 1 INTO DATA(WA_QEWLL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QEWLL>-STTXT = 1.
<QEWLL>-USTXT = 1.
<QEWLL>-WERK = 1.
<QEWLL>-ART = 1.
<QEWLL>-HERKUNFT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QEWLL-OBJNR, sy-vline,
  WA_QEWLL-OBTYP, sy-vline,
  WA_QEWLL-KTEXTMAT, sy-vline,
  WA_QEWLL-STSMA, sy-vline,
  WA_QEWLL-STAT02, sy-vline,
  WA_QEWLL-STAT07, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QEWLL 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_QEWLL 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_QEWLL INTO WA_QEWLL.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QEWLL-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QEWLL-AUFNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_QEWLL-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QEWLL-MJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_QEWLL-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QEWLL-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field LS_VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QEWLL-LS_VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QEWLL-LS_VBELN.
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_QEWLL_STR, 
STTXT TYPE STRING,
USTXT TYPE STRING,
WERK TYPE STRING,
ART TYPE STRING,
HERKUNFT TYPE STRING,
OBJNR TYPE STRING,
OBTYP TYPE STRING,
KTEXTMAT TYPE STRING,
STSMA TYPE STRING,
STAT02 TYPE STRING,
STAT07 TYPE STRING,
STAT09 TYPE STRING,
STAT19 TYPE STRING,
KZSKIPLOT TYPE STRING,
HPZ TYPE STRING,
ENSTEHDAT TYPE STRING,
ENTSTEZEIT TYPE STRING,
ERSTELLER TYPE STRING,
ERSTELDAT TYPE STRING,
ERSTELZEIT TYPE STRING,
AENDERER TYPE STRING,
AENDERDAT TYPE STRING,
AENDERZEIT TYPE STRING,
PASTRTERM TYPE STRING,
PASTRZEIT TYPE STRING,
PAENDTERM TYPE STRING,
PAENDZEIT TYPE STRING,
STAT13 TYPE STRING,
AUFNR TYPE STRING,
VERID TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
HERSTELLER TYPE STRING,
EMATNR TYPE STRING,
MATNR TYPE STRING,
REVLV TYPE STRING,
XCHPF TYPE STRING,
CHARG TYPE STRING,
LICHN TYPE STRING,
LAGORTCHRG TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
MJAHR TYPE STRING,
MBLNR TYPE STRING,
ZEILE TYPE STRING,
WERKVORG TYPE STRING,
LAGORTVORG TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
SPRACHE TYPE STRING,
KTEXTLOS TYPE STRING,
ZUSMKZAEHL TYPE STRING,
OFFENNLZMK TYPE STRING,
OFFEN_LZMK TYPE STRING,
LOSMENGE TYPE STRING,
MENGENEINH TYPE STRING,
ANZGEB TYPE STRING,
GEBEH TYPE STRING,
GESSTICHPR TYPE STRING,
EINHPROBE TYPE STRING,
PS_PSP_PNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
SOBKZ TYPE STRING,
LS_KDAUF TYPE STRING,
LS_KDPOS TYPE STRING,
LS_VBELN TYPE STRING,
LS_POSNR TYPE STRING,
LS_KDMAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QEWLL_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_QEWLL_STR-STTXT sy-vline 
WA_QEWLL_STR-USTXT sy-vline 
WA_QEWLL_STR-WERK sy-vline 
WA_QEWLL_STR-ART sy-vline 
WA_QEWLL_STR-HERKUNFT sy-vline 
WA_QEWLL_STR-OBJNR sy-vline 
WA_QEWLL_STR-OBTYP sy-vline 
WA_QEWLL_STR-KTEXTMAT sy-vline 
WA_QEWLL_STR-STSMA sy-vline 
WA_QEWLL_STR-STAT02 sy-vline 
WA_QEWLL_STR-STAT07 sy-vline 
WA_QEWLL_STR-STAT09 sy-vline 
WA_QEWLL_STR-STAT19 sy-vline 
WA_QEWLL_STR-KZSKIPLOT sy-vline 
WA_QEWLL_STR-HPZ sy-vline 
WA_QEWLL_STR-ENSTEHDAT sy-vline 
WA_QEWLL_STR-ENTSTEZEIT sy-vline 
WA_QEWLL_STR-ERSTELLER sy-vline 
WA_QEWLL_STR-ERSTELDAT sy-vline 
WA_QEWLL_STR-ERSTELZEIT sy-vline 
WA_QEWLL_STR-AENDERER sy-vline 
WA_QEWLL_STR-AENDERDAT sy-vline 
WA_QEWLL_STR-AENDERZEIT sy-vline 
WA_QEWLL_STR-PASTRTERM sy-vline 
WA_QEWLL_STR-PASTRZEIT sy-vline 
WA_QEWLL_STR-PAENDTERM sy-vline 
WA_QEWLL_STR-PAENDZEIT sy-vline 
WA_QEWLL_STR-STAT13 sy-vline 
WA_QEWLL_STR-AUFNR sy-vline 
WA_QEWLL_STR-VERID sy-vline 
WA_QEWLL_STR-KUNNR sy-vline 
WA_QEWLL_STR-LIFNR sy-vline 
WA_QEWLL_STR-HERSTELLER sy-vline 
WA_QEWLL_STR-EMATNR sy-vline 
WA_QEWLL_STR-MATNR sy-vline 
WA_QEWLL_STR-REVLV sy-vline 
WA_QEWLL_STR-XCHPF sy-vline 
WA_QEWLL_STR-CHARG sy-vline 
WA_QEWLL_STR-LICHN sy-vline 
WA_QEWLL_STR-LAGORTCHRG sy-vline 
WA_QEWLL_STR-EBELN sy-vline 
WA_QEWLL_STR-EBELP sy-vline 
WA_QEWLL_STR-MJAHR sy-vline 
WA_QEWLL_STR-MBLNR sy-vline 
WA_QEWLL_STR-ZEILE sy-vline 
WA_QEWLL_STR-WERKVORG sy-vline 
WA_QEWLL_STR-LAGORTVORG sy-vline 
WA_QEWLL_STR-LGNUM sy-vline 
WA_QEWLL_STR-LGTYP sy-vline 
WA_QEWLL_STR-LGPLA sy-vline 
WA_QEWLL_STR-SPRACHE sy-vline 
WA_QEWLL_STR-KTEXTLOS sy-vline 
WA_QEWLL_STR-ZUSMKZAEHL sy-vline 
WA_QEWLL_STR-OFFENNLZMK sy-vline 
WA_QEWLL_STR-OFFEN_LZMK sy-vline 
WA_QEWLL_STR-LOSMENGE sy-vline 
WA_QEWLL_STR-MENGENEINH sy-vline 
WA_QEWLL_STR-ANZGEB sy-vline 
WA_QEWLL_STR-GEBEH sy-vline 
WA_QEWLL_STR-GESSTICHPR sy-vline 
WA_QEWLL_STR-EINHPROBE sy-vline 
WA_QEWLL_STR-PS_PSP_PNR sy-vline 
WA_QEWLL_STR-KDAUF sy-vline 
WA_QEWLL_STR-KDPOS sy-vline 
WA_QEWLL_STR-SOBKZ sy-vline 
WA_QEWLL_STR-LS_KDAUF sy-vline 
WA_QEWLL_STR-LS_KDPOS sy-vline 
WA_QEWLL_STR-LS_VBELN sy-vline 
WA_QEWLL_STR-LS_POSNR sy-vline 
WA_QEWLL_STR-LS_KDMAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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