ABAP Select data from SAP table TDS_SLINE_QTY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_SLINE_QTY
*  INTO TABLE @DATA(IT_TDS_SLINE_QTY2).
*--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_TDS_SLINE_QTY INDEX 1 INTO DATA(WA_TDS_SLINE_QTY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_SLINE_QTY>-VBELN = 1.
<TDS_SLINE_QTY>-POSNR = 1.
<TDS_SLINE_QTY>-ETENR = 1.
<TDS_SLINE_QTY>-MEINS = 1.
<TDS_SLINE_QTY>-VRKME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_SLINE_QTY-WMENG, sy-vline,
  WA_TDS_SLINE_QTY-CMENG, sy-vline,
  WA_TDS_SLINE_QTY-BMENG, sy-vline,
  WA_TDS_SLINE_QTY-LMENG, sy-vline,
  WA_TDS_SLINE_QTY-UMVKZ, sy-vline,
  WA_TDS_SLINE_QTY-UMVKN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_SLINE_QTY 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_TDS_SLINE_QTY 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_TDS_SLINE_QTY INTO WA_TDS_SLINE_QTY.


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

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

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TDS_SLINE_QTY-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_SLINE_QTY-VRKME.
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_TDS_SLINE_QTY_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
ETENR TYPE STRING,
MEINS TYPE STRING,
VRKME TYPE STRING,
WMENG TYPE STRING,
CMENG TYPE STRING,
BMENG TYPE STRING,
LMENG TYPE STRING,
UMVKZ TYPE STRING,
UMVKN TYPE STRING,
OCDQTY_BU TYPE STRING,
OCDQTY_SU TYPE STRING,
OCDQTY_BU_FLT TYPE STRING,
OCDQTY_SU_FLT TYPE STRING,
DLVQTY_BU TYPE STRING,
DLVQTY_SU TYPE STRING,
DLVQTY_BU_FLT TYPE STRING,
DLVQTY_SU_FLT TYPE STRING,
ORDQTY_BU TYPE STRING,
ORDQTY_SU TYPE STRING,
WAERK TYPE STRING,
ODN_AMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_SLINE_QTY_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_TDS_SLINE_QTY_STR-VBELN sy-vline 
WA_TDS_SLINE_QTY_STR-POSNR sy-vline 
WA_TDS_SLINE_QTY_STR-ETENR sy-vline 
WA_TDS_SLINE_QTY_STR-MEINS sy-vline 
WA_TDS_SLINE_QTY_STR-VRKME sy-vline 
WA_TDS_SLINE_QTY_STR-WMENG sy-vline 
WA_TDS_SLINE_QTY_STR-CMENG sy-vline 
WA_TDS_SLINE_QTY_STR-BMENG sy-vline 
WA_TDS_SLINE_QTY_STR-LMENG sy-vline 
WA_TDS_SLINE_QTY_STR-UMVKZ sy-vline 
WA_TDS_SLINE_QTY_STR-UMVKN sy-vline 
WA_TDS_SLINE_QTY_STR-OCDQTY_BU sy-vline 
WA_TDS_SLINE_QTY_STR-OCDQTY_SU sy-vline 
WA_TDS_SLINE_QTY_STR-OCDQTY_BU_FLT sy-vline 
WA_TDS_SLINE_QTY_STR-OCDQTY_SU_FLT sy-vline 
WA_TDS_SLINE_QTY_STR-DLVQTY_BU sy-vline 
WA_TDS_SLINE_QTY_STR-DLVQTY_SU sy-vline 
WA_TDS_SLINE_QTY_STR-DLVQTY_BU_FLT sy-vline 
WA_TDS_SLINE_QTY_STR-DLVQTY_SU_FLT sy-vline 
WA_TDS_SLINE_QTY_STR-ORDQTY_BU sy-vline 
WA_TDS_SLINE_QTY_STR-ORDQTY_SU sy-vline 
WA_TDS_SLINE_QTY_STR-WAERK sy-vline 
WA_TDS_SLINE_QTY_STR-ODN_AMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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