ABAP Select data from SAP table LTR2_UI_S_ES_TECHNICAL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LTR2_UI_S_ES_TECHNICAL 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 LTR2_UI_S_ES_TECHNICAL. 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 LTR2_UI_S_ES_TECHNICAL 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_LTR2_UI_S_ES_TECHNICAL TYPE STANDARD TABLE OF LTR2_UI_S_ES_TECHNICAL,
      WA_LTR2_UI_S_ES_TECHNICAL TYPE LTR2_UI_S_ES_TECHNICAL,
      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: <LTR2_UI_S_ES_TECHNICAL> TYPE LTR2_UI_S_ES_TECHNICAL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LTR2_UI_S_ES_TECHNICAL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LTR2_UI_S_ES_TECHNICAL
  INTO TABLE IT_LTR2_UI_S_ES_TECHNICAL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LTR2_UI_S_ES_TECHNICAL
*  INTO TABLE @DATA(IT_LTR2_UI_S_ES_TECHNICAL2).
*--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_LTR2_UI_S_ES_TECHNICAL INDEX 1 INTO DATA(WA_LTR2_UI_S_ES_TECHNICAL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LTR2_UI_S_ES_TECHNICAL ASSIGNING <LTR2_UI_S_ES_TECHNICAL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LTR2_UI_S_ES_TECHNICAL>-TAB_ANR = 1.
<LTR2_UI_S_ES_TECHNICAL>-PE_PROJECT = 1.
<LTR2_UI_S_ES_TECHNICAL>-SHOW_PE = 1.
<LTR2_UI_S_ES_TECHNICAL>-NCE_PROJECT = 1.
<LTR2_UI_S_ES_TECHNICAL>-PACKID = 1.

ENDLOOP.

LOOP AT IT_LTR2_UI_S_ES_TECHNICAL INTO WA_LTR2_UI_S_ES_TECHNICAL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LTR2_UI_S_ES_TECHNICAL-WS_GUID, sy-vline,
  WA_LTR2_UI_S_ES_TECHNICAL-MWB_PROJ, sy-vline,
  WA_LTR2_UI_S_ES_TECHNICAL-MWB_SUBPROJ, sy-vline,
  WA_LTR2_UI_S_ES_TECHNICAL-MWB_MTID, sy-vline,
  WA_LTR2_UI_S_ES_TECHNICAL-SHOW_MWB, sy-vline,
  WA_LTR2_UI_S_ES_TECHNICAL-REPL_MTID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LTR2_UI_S_ES_TECHNICAL 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_LTR2_UI_S_ES_TECHNICAL 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_LTR2_UI_S_ES_TECHNICAL INTO WA_LTR2_UI_S_ES_TECHNICAL.


*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_LTR2_UI_S_ES_TECHNICAL_STR, 
TAB_ANR TYPE STRING,
PE_PROJECT TYPE STRING,
SHOW_PE TYPE STRING,
NCE_PROJECT TYPE STRING,
PACKID TYPE STRING,
WS_GUID TYPE STRING,
MWB_PROJ TYPE STRING,
MWB_SUBPROJ TYPE STRING,
MWB_MTID TYPE STRING,
SHOW_MWB TYPE STRING,
REPL_MTID TYPE STRING,
INCR_MTID TYPE STRING,
SLT_MTID TYPE STRING,
SHOW_IOBT TYPE STRING,
DESTCNT TYPE STRING,
STATUSCNT TYPE STRING,
SYSIDCNT TYPE STRING,
SHOWCNT TYPE STRING,
LASTCHECKEDCNT TYPE STRING,
LASTCHECKED_TEXTCNT TYPE STRING,
PACKIDCNT TYPE STRING,
EXEC_TARGETCNT TYPE STRING,
DESTCTR TYPE STRING,
STATUSCTR TYPE STRING,
SYSIDCTR TYPE STRING,
SHOWCTR TYPE STRING,
LASTCHECKEDCTR TYPE STRING,
LASTCHECKED_TEXTCTR TYPE STRING,
PACKIDCTR TYPE STRING,
EXEC_TARGETCTR TYPE STRING,
DESTSND TYPE STRING,
STATUSSND TYPE STRING,
SYSIDSND TYPE STRING,
SHOWSND TYPE STRING,
LASTCHECKEDSND TYPE STRING,
LASTCHECKED_TEXTSND TYPE STRING,
PACKIDSND TYPE STRING,
EXEC_TARGETSND TYPE STRING,
DESTRCV TYPE STRING,
STATUSRCV TYPE STRING,
SYSIDRCV TYPE STRING,
SHOWRCV TYPE STRING,
LASTCHECKEDRCV TYPE STRING,
LASTCHECKED_TEXTRCV TYPE STRING,
PACKIDRCV TYPE STRING,
EXEC_TARGETRCV TYPE STRING,
DESTEXE TYPE STRING,
STATUSEXE TYPE STRING,
SYSIDEXE TYPE STRING,
SHOWEXE TYPE STRING,
LASTCHECKEDEXE TYPE STRING,
LASTCHECKED_TEXTEXE TYPE STRING,
PACKIDEXE TYPE STRING,
EXEC_TARGETEXE TYPE STRING,
SHOW_PCL TYPE STRING,
SHOW_RFC TYPE STRING,
PCL_PROJECT TYPE STRING,
PCL_SUBPROJECT TYPE STRING,
SHOW_MEC TYPE STRING,
SHOW_KB TYPE STRING,
KB_PROJ_NAME_BUSINESS TYPE STRING,
KB_PROJ_NAME_TECHNICAL TYPE STRING,
SHOW_DEL_RCV TYPE STRING,
SHOW_CONV TYPE STRING,
DESTUPG TYPE STRING,
STATUSUPG TYPE STRING,
SYSIDUPG TYPE STRING,
SHOWUPG TYPE STRING,
LASTCHECKEDUPG TYPE STRING,
LASTCHECKED_TEXTUPG TYPE STRING,
PACKIDUPG TYPE STRING,
EXEC_TARGETUPG TYPE STRING,
RN_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LTR2_UI_S_ES_TECHNICAL_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_LTR2_UI_S_ES_TECHNICAL_STR-TAB_ANR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PE_PROJECT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_PE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-NCE_PROJECT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PACKID sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-WS_GUID sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-MWB_PROJ sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-MWB_SUBPROJ sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-MWB_MTID sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_MWB sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-REPL_MTID sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-INCR_MTID sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SLT_MTID sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_IOBT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-DESTCNT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-STATUSCNT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SYSIDCNT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOWCNT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKEDCNT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKED_TEXTCNT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PACKIDCNT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-EXEC_TARGETCNT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-DESTCTR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-STATUSCTR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SYSIDCTR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOWCTR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKEDCTR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKED_TEXTCTR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PACKIDCTR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-EXEC_TARGETCTR sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-DESTSND sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-STATUSSND sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SYSIDSND sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOWSND sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKEDSND sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKED_TEXTSND sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PACKIDSND sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-EXEC_TARGETSND sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-DESTRCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-STATUSRCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SYSIDRCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOWRCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKEDRCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKED_TEXTRCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PACKIDRCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-EXEC_TARGETRCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-DESTEXE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-STATUSEXE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SYSIDEXE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOWEXE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKEDEXE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKED_TEXTEXE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PACKIDEXE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-EXEC_TARGETEXE sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_PCL sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_RFC sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PCL_PROJECT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PCL_SUBPROJECT sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_MEC sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_KB sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-KB_PROJ_NAME_BUSINESS sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-KB_PROJ_NAME_TECHNICAL sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_DEL_RCV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOW_CONV sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-DESTUPG sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-STATUSUPG sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SYSIDUPG sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-SHOWUPG sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKEDUPG sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-LASTCHECKED_TEXTUPG sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-PACKIDUPG sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-EXEC_TARGETUPG sy-vline 
WA_LTR2_UI_S_ES_TECHNICAL_STR-RN_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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