ABAP Select data from SAP table O2TLIBEDIT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP O2TLIBEDIT 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 O2TLIBEDIT. 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 O2TLIBEDIT 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_O2TLIBEDIT TYPE STANDARD TABLE OF O2TLIBEDIT,
      WA_O2TLIBEDIT TYPE O2TLIBEDIT,
      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: <O2TLIBEDIT> TYPE O2TLIBEDIT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_O2TLIBEDIT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM O2TLIBEDIT
  INTO TABLE IT_O2TLIBEDIT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM O2TLIBEDIT
*  INTO TABLE @DATA(IT_O2TLIBEDIT2).
*--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_O2TLIBEDIT INDEX 1 INTO DATA(WA_O2TLIBEDIT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_O2TLIBEDIT ASSIGNING <O2TLIBEDIT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<O2TLIBEDIT>-TLIBID = 1.
<O2TLIBEDIT>-AUTHOR = 1.
<O2TLIBEDIT>-CREATEDON = 1.
<O2TLIBEDIT>-CHANGEDBY = 1.
<O2TLIBEDIT>-CHANGEDON = 1.

ENDLOOP.

LOOP AT IT_O2TLIBEDIT INTO WA_O2TLIBEDIT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_O2TLIBEDIT-PREFIX, sy-vline,
  WA_O2TLIBEDIT-TLIBNAME, sy-vline,
  WA_O2TLIBEDIT-STAMP, sy-vline,
  WA_O2TLIBEDIT-DESCRIPT, sy-vline,
  WA_O2TLIBEDIT-TAGS, sy-vline,
  WA_O2TLIBEDIT-DEVCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_O2TLIBEDIT 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_O2TLIBEDIT 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_O2TLIBEDIT INTO WA_O2TLIBEDIT.


*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 MASTERLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_O2TLIBEDIT-MASTERLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_O2TLIBEDIT-MASTERLANG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field MODIFYLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_O2TLIBEDIT-MODIFYLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_O2TLIBEDIT-MODIFYLANG.
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_O2TLIBEDIT_STR, 
TLIBID TYPE STRING,
AUTHOR TYPE STRING,
CREATEDON TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
PREFIX TYPE STRING,
TLIBNAME TYPE STRING,
STAMP TYPE STRING,
DESCRIPT TYPE STRING,
TAGS TYPE STRING,
DEVCLASS TYPE STRING,
MASTERLANG TYPE STRING,
MODIFYLANG TYPE STRING,
TAGLIBCLASS TYPE STRING,
TAGBASECLASS TYPE STRING,
NOPAGEDONE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_O2TLIBEDIT_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_O2TLIBEDIT_STR-TLIBID sy-vline 
WA_O2TLIBEDIT_STR-AUTHOR sy-vline 
WA_O2TLIBEDIT_STR-CREATEDON sy-vline 
WA_O2TLIBEDIT_STR-CHANGEDBY sy-vline 
WA_O2TLIBEDIT_STR-CHANGEDON sy-vline 
WA_O2TLIBEDIT_STR-PREFIX sy-vline 
WA_O2TLIBEDIT_STR-TLIBNAME sy-vline 
WA_O2TLIBEDIT_STR-STAMP sy-vline 
WA_O2TLIBEDIT_STR-DESCRIPT sy-vline 
WA_O2TLIBEDIT_STR-TAGS sy-vline 
WA_O2TLIBEDIT_STR-DEVCLASS sy-vline 
WA_O2TLIBEDIT_STR-MASTERLANG sy-vline 
WA_O2TLIBEDIT_STR-MODIFYLANG sy-vline 
WA_O2TLIBEDIT_STR-TAGLIBCLASS sy-vline 
WA_O2TLIBEDIT_STR-TAGBASECLASS sy-vline 
WA_O2TLIBEDIT_STR-NOPAGEDONE sy-vline      INTO ld_text SEPARATED BY SPACE.

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