ABAP Select data from SAP table LSO_TRAINING_C into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LSO_TRAINING_C
*  INTO TABLE @DATA(IT_LSO_TRAINING_C2).
*--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_LSO_TRAINING_C INDEX 1 INTO DATA(WA_LSO_TRAINING_C2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LSO_TRAINING_C>-PLANVERSION = 1.
<LSO_TRAINING_C>-OTYPE = 1.
<LSO_TRAINING_C>-OBJID = 1.
<LSO_TRAINING_C>-STATUS = 1.
<LSO_TRAINING_C>-SHORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LSO_TRAINING_C-STEXT, sy-vline,
  WA_LSO_TRAINING_C-BEGINDATE, sy-vline,
  WA_LSO_TRAINING_C-ENDDATE, sy-vline,
  WA_LSO_TRAINING_C-LANGUAGE, sy-vline,
  WA_LSO_TRAINING_C-INTERNAL, sy-vline,
  WA_LSO_TRAINING_C-TRAINTYPE_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LSO_TRAINING_C 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_LSO_TRAINING_C 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_LSO_TRAINING_C INTO WA_LSO_TRAINING_C.


*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 ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_LSO_TRAINING_C-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LSO_TRAINING_C-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_LSO_TRAINING_C-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LSO_TRAINING_C-LANGU.
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_LSO_TRAINING_C_STR, 
PLANVERSION TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
STATUS TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
BEGINDATE TYPE STRING,
ENDDATE TYPE STRING,
LANGUAGE TYPE STRING,
INTERNAL TYPE STRING,
TRAINTYPE_TYPE TYPE STRING,
TRAINTYPE_ID TYPE STRING,
IKOST TYPE STRING,
IWAER TYPE STRING,
EKOST TYPE STRING,
EWAER TYPE STRING,
PRIBEGDA TYPE STRING,
PRIENDDA TYPE STRING,
LUPUB TYPE STRING,
OFFLINE TYPE STRING,
ORGTY TYPE STRING,
ORGID TYPE STRING,
COSTY TYPE STRING,
COSID TYPE STRING,
LANGU TYPE STRING,
EXTID TYPE STRING,
TRACK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LSO_TRAINING_C_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_LSO_TRAINING_C_STR-PLANVERSION sy-vline 
WA_LSO_TRAINING_C_STR-OTYPE sy-vline 
WA_LSO_TRAINING_C_STR-OBJID sy-vline 
WA_LSO_TRAINING_C_STR-STATUS sy-vline 
WA_LSO_TRAINING_C_STR-SHORT sy-vline 
WA_LSO_TRAINING_C_STR-STEXT sy-vline 
WA_LSO_TRAINING_C_STR-BEGINDATE sy-vline 
WA_LSO_TRAINING_C_STR-ENDDATE sy-vline 
WA_LSO_TRAINING_C_STR-LANGUAGE sy-vline 
WA_LSO_TRAINING_C_STR-INTERNAL sy-vline 
WA_LSO_TRAINING_C_STR-TRAINTYPE_TYPE sy-vline 
WA_LSO_TRAINING_C_STR-TRAINTYPE_ID sy-vline 
WA_LSO_TRAINING_C_STR-IKOST sy-vline 
WA_LSO_TRAINING_C_STR-IWAER sy-vline 
WA_LSO_TRAINING_C_STR-EKOST sy-vline 
WA_LSO_TRAINING_C_STR-EWAER sy-vline 
WA_LSO_TRAINING_C_STR-PRIBEGDA sy-vline 
WA_LSO_TRAINING_C_STR-PRIENDDA sy-vline 
WA_LSO_TRAINING_C_STR-LUPUB sy-vline 
WA_LSO_TRAINING_C_STR-OFFLINE sy-vline 
WA_LSO_TRAINING_C_STR-ORGTY sy-vline 
WA_LSO_TRAINING_C_STR-ORGID sy-vline 
WA_LSO_TRAINING_C_STR-COSTY sy-vline 
WA_LSO_TRAINING_C_STR-COSID sy-vline 
WA_LSO_TRAINING_C_STR-LANGU sy-vline 
WA_LSO_TRAINING_C_STR-EXTID sy-vline 
WA_LSO_TRAINING_C_STR-TRACK sy-vline      INTO ld_text SEPARATED BY SPACE.

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