ABAP Select data from SAP table /DMBE/SM_QS_LINE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /DMBE/SM_QS_LINE 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 /DMBE/SM_QS_LINE. 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 /DMBE/SM_QS_LINE 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_/DMBE/SM_QS_LINE TYPE STANDARD TABLE OF /DMBE/SM_QS_LINE,
      WA_/DMBE/SM_QS_LINE TYPE /DMBE/SM_QS_LINE,
      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: </DMBE/SM_QS_LINE> TYPE /DMBE/SM_QS_LINE.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /DMBE/SM_QS_LINE
  INTO TABLE IT_/DMBE/SM_QS_LINE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /DMBE/SM_QS_LINE
*  INTO TABLE @DATA(IT_/DMBE/SM_QS_LINE2).
*--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_/DMBE/SM_QS_LINE INDEX 1 INTO DATA(WA_/DMBE/SM_QS_LINE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/DMBE/SM_QS_LINE ASSIGNING </DMBE/SM_QS_LINE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</DMBE/SM_QS_LINE>-MANDT = 1.
</DMBE/SM_QS_LINE>-BUKRS = 1.
</DMBE/SM_QS_LINE>-DOCUM = 1.
</DMBE/SM_QS_LINE>-ITEM = 1.
</DMBE/SM_QS_LINE>-SUBITM = 1.

ENDLOOP.

LOOP AT IT_/DMBE/SM_QS_LINE INTO WA_/DMBE/SM_QS_LINE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/DMBE/SM_QS_LINE-SEQENT, sy-vline,
  WA_/DMBE/SM_QS_LINE-SCHDDT, sy-vline,
  WA_/DMBE/SM_QS_LINE-SMENGE, sy-vline,
  WA_/DMBE/SM_QS_LINE-INTQTY, sy-vline,
  WA_/DMBE/SM_QS_LINE-RECQTY, sy-vline,
  WA_/DMBE/SM_QS_LINE-ENTLU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/DMBE/SM_QS_LINE 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_/DMBE/SM_QS_LINE 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_/DMBE/SM_QS_LINE INTO WA_/DMBE/SM_QS_LINE.


*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_/DMBE/SM_QS_LINE_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
DOCUM TYPE STRING,
ITEM TYPE STRING,
SUBITM TYPE STRING,
SEQENT TYPE STRING,
SCHDDT TYPE STRING,
SMENGE TYPE STRING,
INTQTY TYPE STRING,
RECQTY TYPE STRING,
ENTLU TYPE STRING,
AUTIND TYPE STRING,
KZ TYPE STRING,
SELKZ TYPE STRING,
/DMBE/CLOSEDINDICATOR TYPE STRING,
/DMBE/TLINK TYPE STRING,
/DMBE/CYCLE_ID TYPE STRING,
CALENDAR_DAYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/DMBE/SM_QS_LINE_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_/DMBE/SM_QS_LINE_STR-MANDT sy-vline 
WA_/DMBE/SM_QS_LINE_STR-BUKRS sy-vline 
WA_/DMBE/SM_QS_LINE_STR-DOCUM sy-vline 
WA_/DMBE/SM_QS_LINE_STR-ITEM sy-vline 
WA_/DMBE/SM_QS_LINE_STR-SUBITM sy-vline 
WA_/DMBE/SM_QS_LINE_STR-SEQENT sy-vline 
WA_/DMBE/SM_QS_LINE_STR-SCHDDT sy-vline 
WA_/DMBE/SM_QS_LINE_STR-SMENGE sy-vline 
WA_/DMBE/SM_QS_LINE_STR-INTQTY sy-vline 
WA_/DMBE/SM_QS_LINE_STR-RECQTY sy-vline 
WA_/DMBE/SM_QS_LINE_STR-ENTLU sy-vline 
WA_/DMBE/SM_QS_LINE_STR-AUTIND sy-vline 
WA_/DMBE/SM_QS_LINE_STR-KZ sy-vline 
WA_/DMBE/SM_QS_LINE_STR-SELKZ sy-vline 
WA_/DMBE/SM_QS_LINE_STR-/DMBE/CLOSEDINDICATOR sy-vline 
WA_/DMBE/SM_QS_LINE_STR-/DMBE/TLINK sy-vline 
WA_/DMBE/SM_QS_LINE_STR-/DMBE/CYCLE_ID sy-vline 
WA_/DMBE/SM_QS_LINE_STR-CALENDAR_DAYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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