ABAP Select data from SAP table QISR_LIST_EXTENDED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QISR_LIST_EXTENDED
*  INTO TABLE @DATA(IT_QISR_LIST_EXTENDED2).
*--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_QISR_LIST_EXTENDED INDEX 1 INTO DATA(WA_QISR_LIST_EXTENDED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QISR_LIST_EXTENDED>-QMNUM = 1.
<QISR_LIST_EXTENDED>-QMART = 1.
<QISR_LIST_EXTENDED>-TEXT = 1.
<QISR_LIST_EXTENDED>-STATUS = 1.
<QISR_LIST_EXTENDED>-ARTPR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QISR_LIST_EXTENDED-PRIOK, sy-vline,
  WA_QISR_LIST_EXTENDED-ERNAM, sy-vline,
  WA_QISR_LIST_EXTENDED-ERDAT, sy-vline,
  WA_QISR_LIST_EXTENDED-AENAM, sy-vline,
  WA_QISR_LIST_EXTENDED-AEDAT, sy-vline,
  WA_QISR_LIST_EXTENDED-MZEIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QISR_LIST_EXTENDED 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_QISR_LIST_EXTENDED 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_QISR_LIST_EXTENDED INTO WA_QISR_LIST_EXTENDED.


*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 QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QISR_LIST_EXTENDED-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QISR_LIST_EXTENDED-QMNUM.
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_QISR_LIST_EXTENDED_STR, 
QMNUM TYPE STRING,
QMART TYPE STRING,
TEXT TYPE STRING,
STATUS TYPE STRING,
ARTPR TYPE STRING,
PRIOK TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
MZEIT TYPE STRING,
QMDAT TYPE STRING,
PRIMARY_STATUS TYPE STRING,
QMNAM TYPE STRING,
AUSWIRK TYPE STRING,
MYREQ TYPE STRING,
OBJNR TYPE STRING,
DESCR1 TYPE STRING,
FIELD1 TYPE STRING,
DESCR2 TYPE STRING,
FIELD2 TYPE STRING,
DESCR3 TYPE STRING,
FIELD3 TYPE STRING,
DESCR4 TYPE STRING,
FIELD4 TYPE STRING,
DESCR5 TYPE STRING,
FIELD5 TYPE STRING,
DISPLAY_URL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QISR_LIST_EXTENDED_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_QISR_LIST_EXTENDED_STR-QMNUM sy-vline 
WA_QISR_LIST_EXTENDED_STR-QMART sy-vline 
WA_QISR_LIST_EXTENDED_STR-TEXT sy-vline 
WA_QISR_LIST_EXTENDED_STR-STATUS sy-vline 
WA_QISR_LIST_EXTENDED_STR-ARTPR sy-vline 
WA_QISR_LIST_EXTENDED_STR-PRIOK sy-vline 
WA_QISR_LIST_EXTENDED_STR-ERNAM sy-vline 
WA_QISR_LIST_EXTENDED_STR-ERDAT sy-vline 
WA_QISR_LIST_EXTENDED_STR-AENAM sy-vline 
WA_QISR_LIST_EXTENDED_STR-AEDAT sy-vline 
WA_QISR_LIST_EXTENDED_STR-MZEIT sy-vline 
WA_QISR_LIST_EXTENDED_STR-QMDAT sy-vline 
WA_QISR_LIST_EXTENDED_STR-PRIMARY_STATUS sy-vline 
WA_QISR_LIST_EXTENDED_STR-QMNAM sy-vline 
WA_QISR_LIST_EXTENDED_STR-AUSWIRK sy-vline 
WA_QISR_LIST_EXTENDED_STR-MYREQ sy-vline 
WA_QISR_LIST_EXTENDED_STR-OBJNR sy-vline 
WA_QISR_LIST_EXTENDED_STR-DESCR1 sy-vline 
WA_QISR_LIST_EXTENDED_STR-FIELD1 sy-vline 
WA_QISR_LIST_EXTENDED_STR-DESCR2 sy-vline 
WA_QISR_LIST_EXTENDED_STR-FIELD2 sy-vline 
WA_QISR_LIST_EXTENDED_STR-DESCR3 sy-vline 
WA_QISR_LIST_EXTENDED_STR-FIELD3 sy-vline 
WA_QISR_LIST_EXTENDED_STR-DESCR4 sy-vline 
WA_QISR_LIST_EXTENDED_STR-FIELD4 sy-vline 
WA_QISR_LIST_EXTENDED_STR-DESCR5 sy-vline 
WA_QISR_LIST_EXTENDED_STR-FIELD5 sy-vline 
WA_QISR_LIST_EXTENDED_STR-DISPLAY_URL sy-vline      INTO ld_text SEPARATED BY SPACE.

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