ABAP Select data from SAP table TDS_SLINECOMXC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_SLINECOMXC 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_SLINECOMXC. 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_SLINECOMXC 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_SLINECOMXC TYPE STANDARD TABLE OF TDS_SLINECOMXC,
      WA_TDS_SLINECOMXC TYPE TDS_SLINECOMXC,
      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_SLINECOMXC> TYPE TDS_SLINECOMXC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_SLINECOMXC
*  INTO TABLE @DATA(IT_TDS_SLINECOMXC2).
*--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_SLINECOMXC INDEX 1 INTO DATA(WA_TDS_SLINECOMXC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_SLINECOMXC>-HANDLE_ITEM = 1.
<TDS_SLINECOMXC>-HANDLE = 1.
<TDS_SLINECOMXC>-SELKZ = 1.
<TDS_SLINECOMXC>-POSNR = 1.
<TDS_SLINECOMXC>-ETENR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_SLINECOMXC-PRGBZ, sy-vline,
  WA_TDS_SLINECOMXC-ETDAT, sy-vline,
  WA_TDS_SLINECOMXC-WMENG, sy-vline,
  WA_TDS_SLINECOMXC-CMENG, sy-vline,
  WA_TDS_SLINECOMXC-BMENG, sy-vline,
  WA_TDS_SLINECOMXC-VRKME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_SLINECOMXC 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_SLINECOMXC 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_SLINECOMXC INTO WA_TDS_SLINECOMXC.


*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_TDS_SLINECOMXC_STR, 
HANDLE_ITEM TYPE STRING,
HANDLE TYPE STRING,
SELKZ TYPE STRING,
POSNR TYPE STRING,
ETENR TYPE STRING,
PRGBZ TYPE STRING,
ETDAT TYPE STRING,
WMENG TYPE STRING,
CMENG TYPE STRING,
BMENG TYPE STRING,
VRKME TYPE STRING,
LIFSP TYPE STRING,
VSMNG TYPE STRING,
ROMS1 TYPE STRING,
ETTYP TYPE STRING,
WADAT TYPE STRING,
LDDAT TYPE STRING,
MBDAT TYPE STRING,
TDDAT TYPE STRING,
EZEIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_SLINECOMXC_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_SLINECOMXC_STR-HANDLE_ITEM sy-vline 
WA_TDS_SLINECOMXC_STR-HANDLE sy-vline 
WA_TDS_SLINECOMXC_STR-SELKZ sy-vline 
WA_TDS_SLINECOMXC_STR-POSNR sy-vline 
WA_TDS_SLINECOMXC_STR-ETENR sy-vline 
WA_TDS_SLINECOMXC_STR-PRGBZ sy-vline 
WA_TDS_SLINECOMXC_STR-ETDAT sy-vline 
WA_TDS_SLINECOMXC_STR-WMENG sy-vline 
WA_TDS_SLINECOMXC_STR-CMENG sy-vline 
WA_TDS_SLINECOMXC_STR-BMENG sy-vline 
WA_TDS_SLINECOMXC_STR-VRKME sy-vline 
WA_TDS_SLINECOMXC_STR-LIFSP sy-vline 
WA_TDS_SLINECOMXC_STR-VSMNG sy-vline 
WA_TDS_SLINECOMXC_STR-ROMS1 sy-vline 
WA_TDS_SLINECOMXC_STR-ETTYP sy-vline 
WA_TDS_SLINECOMXC_STR-WADAT sy-vline 
WA_TDS_SLINECOMXC_STR-LDDAT sy-vline 
WA_TDS_SLINECOMXC_STR-MBDAT sy-vline 
WA_TDS_SLINECOMXC_STR-TDDAT sy-vline 
WA_TDS_SLINECOMXC_STR-EZEIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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