ABAP Select data from SAP table LSPARTDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LSPARTDATA
*  INTO TABLE @DATA(IT_LSPARTDATA2).
*--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_LSPARTDATA INDEX 1 INTO DATA(WA_LSPARTDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LSPARTDATA>-PLVAR = 1.
<LSPARTDATA>-LEARNERTYPE = 1.
<LSPARTDATA>-LEARNERID = 1.
<LSPARTDATA>-LEARNERNAME = 1.
<LSPARTDATA>-TRAININGOTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LSPARTDATA-TRAININGID, sy-vline,
  WA_LSPARTDATA-PRIORITY, sy-vline,
  WA_LSPARTDATA-NUMBEROFBOOKINGS, sy-vline,
  WA_LSPARTDATA-COST, sy-vline,
  WA_LSPARTDATA-CURRENCY, sy-vline,
  WA_LSPARTDATA-BOOKDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LSPARTDATA 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_LSPARTDATA 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_LSPARTDATA INTO WA_LSPARTDATA.


*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 SXIDN, internal->external for field SMTPADR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_LSPARTDATA-SMTPADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LSPARTDATA-SMTPADR.
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_LSPARTDATA_STR, 
PLVAR TYPE STRING,
LEARNERTYPE TYPE STRING,
LEARNERID TYPE STRING,
LEARNERNAME TYPE STRING,
TRAININGOTYPE TYPE STRING,
TRAININGID TYPE STRING,
PRIORITY TYPE STRING,
NUMBEROFBOOKINGS TYPE STRING,
COST TYPE STRING,
CURRENCY TYPE STRING,
BOOKDATE TYPE STRING,
SMTPADR TYPE STRING,
SEQNR TYPE STRING,
TPARTDOCNO TYPE STRING,
CE_PERNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LSPARTDATA_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_LSPARTDATA_STR-PLVAR sy-vline 
WA_LSPARTDATA_STR-LEARNERTYPE sy-vline 
WA_LSPARTDATA_STR-LEARNERID sy-vline 
WA_LSPARTDATA_STR-LEARNERNAME sy-vline 
WA_LSPARTDATA_STR-TRAININGOTYPE sy-vline 
WA_LSPARTDATA_STR-TRAININGID sy-vline 
WA_LSPARTDATA_STR-PRIORITY sy-vline 
WA_LSPARTDATA_STR-NUMBEROFBOOKINGS sy-vline 
WA_LSPARTDATA_STR-COST sy-vline 
WA_LSPARTDATA_STR-CURRENCY sy-vline 
WA_LSPARTDATA_STR-BOOKDATE sy-vline 
WA_LSPARTDATA_STR-SMTPADR sy-vline 
WA_LSPARTDATA_STR-SEQNR sy-vline 
WA_LSPARTDATA_STR-TPARTDOCNO sy-vline 
WA_LSPARTDATA_STR-CE_PERNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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