ABAP Select data from SAP table LSCURRTRAINING into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LSCURRTRAINING
*  INTO TABLE @DATA(IT_LSCURRTRAINING2).
*--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_LSCURRTRAINING INDEX 1 INTO DATA(WA_LSCURRTRAINING2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LSCURRTRAINING>-SEQNO = 1.
<LSCURRTRAINING>-ELEM_TYPE = 1.
<LSCURRTRAINING>-ELEM_ID = 1.
<LSCURRTRAINING>-ELEM_SHORT = 1.
<LSCURRTRAINING>-ELEM_STEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LSCURRTRAINING-ELEM_TFORM, sy-vline,
  WA_LSCURRTRAINING-ELEM_TFTEXT, sy-vline,
  WA_LSCURRTRAINING-ELEM_POSITION, sy-vline,
  WA_LSCURRTRAINING-ELEM_GROUP, sy-vline,
  WA_LSCURRTRAINING-ELEM_RATING, sy-vline,
  WA_LSCURRTRAINING-ELEM_DEFAULT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LSCURRTRAINING 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_LSCURRTRAINING 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_LSCURRTRAINING INTO WA_LSCURRTRAINING.


*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_LSCURRTRAINING_STR, 
SEQNO TYPE STRING,
ELEM_TYPE TYPE STRING,
ELEM_ID TYPE STRING,
ELEM_SHORT TYPE STRING,
ELEM_STEXT TYPE STRING,
ELEM_TFORM TYPE STRING,
ELEM_TFTEXT TYPE STRING,
ELEM_POSITION TYPE STRING,
ELEM_GROUP TYPE STRING,
ELEM_RATING TYPE STRING,
ELEM_DEFAULT TYPE STRING,
BEF_AMOUNT TYPE STRING,
BEF_UNIT TYPE STRING,
BEF_UNITTXT TYPE STRING,
BEF_TOJ TYPE STRING,
AFT_AMOUNT TYPE STRING,
AFT_UNIT TYPE STRING,
AFT_UNITTXT TYPE STRING,
AFT_TOJ TYPE STRING,
PLVAR TYPE STRING,
EOTYP TYPE STRING,
EVEID TYPE STRING,
EVTEX TYPE STRING,
ETEXT TYPE STRING,
EBEGD TYPE STRING,
EENDA TYPE STRING,
ETTYP TYPE STRING,
ETYID TYPE STRING,
EVLNG TYPE STRING,
KAPZ1 TYPE STRING,
KAPZ2 TYPE STRING,
KAPZ3 TYPE STRING,
FCONT TYPE STRING,
BCONT TYPE STRING,
WCONT TYPE STRING,
LOCID TYPE STRING,
EVLOC TYPE STRING,
TEILX TYPE STRING,
EVFIX TYPE STRING,
ISTAT TYPE STRING,
EVEXT TYPE STRING,
LOCKM TYPE STRING,
HISTO TYPE STRING,
DELET TYPE STRING,
FLUPX TYPE STRING,
NCONT TYPE STRING,
MCONT TYPE STRING,
ORGTY TYPE STRING,
ORGID TYPE STRING,
ORGSH TYPE STRING,
ORGTX TYPE STRING,
DURMAX TYPE STRING,
MAXBZGME TYPE STRING,
DURMIN TYPE STRING,
MINBZGME TYPE STRING,
DEALEND TYPE STRING,
DUROPT TYPE STRING,
OPTBZGME TYPE STRING,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LSCURRTRAINING_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_LSCURRTRAINING_STR-SEQNO sy-vline 
WA_LSCURRTRAINING_STR-ELEM_TYPE sy-vline 
WA_LSCURRTRAINING_STR-ELEM_ID sy-vline 
WA_LSCURRTRAINING_STR-ELEM_SHORT sy-vline 
WA_LSCURRTRAINING_STR-ELEM_STEXT sy-vline 
WA_LSCURRTRAINING_STR-ELEM_TFORM sy-vline 
WA_LSCURRTRAINING_STR-ELEM_TFTEXT sy-vline 
WA_LSCURRTRAINING_STR-ELEM_POSITION sy-vline 
WA_LSCURRTRAINING_STR-ELEM_GROUP sy-vline 
WA_LSCURRTRAINING_STR-ELEM_RATING sy-vline 
WA_LSCURRTRAINING_STR-ELEM_DEFAULT sy-vline 
WA_LSCURRTRAINING_STR-BEF_AMOUNT sy-vline 
WA_LSCURRTRAINING_STR-BEF_UNIT sy-vline 
WA_LSCURRTRAINING_STR-BEF_UNITTXT sy-vline 
WA_LSCURRTRAINING_STR-BEF_TOJ sy-vline 
WA_LSCURRTRAINING_STR-AFT_AMOUNT sy-vline 
WA_LSCURRTRAINING_STR-AFT_UNIT sy-vline 
WA_LSCURRTRAINING_STR-AFT_UNITTXT sy-vline 
WA_LSCURRTRAINING_STR-AFT_TOJ sy-vline 
WA_LSCURRTRAINING_STR-PLVAR sy-vline 
WA_LSCURRTRAINING_STR-EOTYP sy-vline 
WA_LSCURRTRAINING_STR-EVEID sy-vline 
WA_LSCURRTRAINING_STR-EVTEX sy-vline 
WA_LSCURRTRAINING_STR-ETEXT sy-vline 
WA_LSCURRTRAINING_STR-EBEGD sy-vline 
WA_LSCURRTRAINING_STR-EENDA sy-vline 
WA_LSCURRTRAINING_STR-ETTYP sy-vline 
WA_LSCURRTRAINING_STR-ETYID sy-vline 
WA_LSCURRTRAINING_STR-EVLNG sy-vline 
WA_LSCURRTRAINING_STR-KAPZ1 sy-vline 
WA_LSCURRTRAINING_STR-KAPZ2 sy-vline 
WA_LSCURRTRAINING_STR-KAPZ3 sy-vline 
WA_LSCURRTRAINING_STR-FCONT sy-vline 
WA_LSCURRTRAINING_STR-BCONT sy-vline 
WA_LSCURRTRAINING_STR-WCONT sy-vline 
WA_LSCURRTRAINING_STR-LOCID sy-vline 
WA_LSCURRTRAINING_STR-EVLOC sy-vline 
WA_LSCURRTRAINING_STR-TEILX sy-vline 
WA_LSCURRTRAINING_STR-EVFIX sy-vline 
WA_LSCURRTRAINING_STR-ISTAT sy-vline 
WA_LSCURRTRAINING_STR-EVEXT sy-vline 
WA_LSCURRTRAINING_STR-LOCKM sy-vline 
WA_LSCURRTRAINING_STR-HISTO sy-vline 
WA_LSCURRTRAINING_STR-DELET sy-vline 
WA_LSCURRTRAINING_STR-FLUPX sy-vline 
WA_LSCURRTRAINING_STR-NCONT sy-vline 
WA_LSCURRTRAINING_STR-MCONT sy-vline 
WA_LSCURRTRAINING_STR-ORGTY sy-vline 
WA_LSCURRTRAINING_STR-ORGID sy-vline 
WA_LSCURRTRAINING_STR-ORGSH sy-vline 
WA_LSCURRTRAINING_STR-ORGTX sy-vline 
WA_LSCURRTRAINING_STR-DURMAX sy-vline 
WA_LSCURRTRAINING_STR-MAXBZGME sy-vline 
WA_LSCURRTRAINING_STR-DURMIN sy-vline 
WA_LSCURRTRAINING_STR-MINBZGME sy-vline 
WA_LSCURRTRAINING_STR-DEALEND sy-vline 
WA_LSCURRTRAINING_STR-DUROPT sy-vline 
WA_LSCURRTRAINING_STR-OPTBZGME sy-vline 
WA_LSCURRTRAINING_STR-BEGUZ sy-vline 
WA_LSCURRTRAINING_STR-ENDUZ sy-vline 
WA_LSCURRTRAINING_STR-ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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