ABAP Select data from SAP table ITSEGDIAE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITSEGDIAE
*  INTO TABLE @DATA(IT_ITSEGDIAE2).
*--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_ITSEGDIAE INDEX 1 INTO DATA(WA_ITSEGDIAE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITSEGDIAE>-HEAD_HDL = 1.
<ITSEGDIAE>-HEAD_TXT = 1.
<ITSEGDIAE>-HEAD_SOR = 1.
<ITSEGDIAE>-EVEN = 1.
<ITSEGDIAE>-EVEN_TXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITSEGDIAE-EVEN_CNT, sy-vline,
  WA_ITSEGDIAE-EVEN_VERTY, sy-vline,
  WA_ITSEGDIAE-EVEN_VERTT, sy-vline,
  WA_ITSEGDIAE-EVEN_VERTI, sy-vline,
  WA_ITSEGDIAE-EVEN_VERNU, sy-vline,
  WA_ITSEGDIAE-EVEN_TIMTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITSEGDIAE 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_ITSEGDIAE 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_ITSEGDIAE INTO WA_ITSEGDIAE.


*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 EVTYA, internal->external for field EVEN
CALL FUNCTION 'CONVERSION_EXIT_EVTYA_OUTPUT'
  EXPORTING
    input =                      WA_ITSEGDIAE-EVEN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITSEGDIAE-EVEN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TIME_TST01
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ITSEGDIAE-TIME_TST01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITSEGDIAE-TIME_TST01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TIME_TST02
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ITSEGDIAE-TIME_TST02
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITSEGDIAE-TIME_TST02.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TIME_TST03
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ITSEGDIAE-TIME_TST03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITSEGDIAE-TIME_TST03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TIME_TST04
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ITSEGDIAE-TIME_TST04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITSEGDIAE-TIME_TST04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TIME_TST05
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ITSEGDIAE-TIME_TST05
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITSEGDIAE-TIME_TST05.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TIME_TST06
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ITSEGDIAE-TIME_TST06
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITSEGDIAE-TIME_TST06.
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_ITSEGDIAE_STR, 
HEAD_HDL TYPE STRING,
HEAD_TXT TYPE STRING,
HEAD_SOR TYPE STRING,
EVEN TYPE STRING,
EVEN_TXT TYPE STRING,
EVEN_CNT TYPE STRING,
EVEN_VERTY TYPE STRING,
EVEN_VERTT TYPE STRING,
EVEN_VERTI TYPE STRING,
EVEN_VERNU TYPE STRING,
EVEN_TIMTY TYPE STRING,
EVEN_TIMTT TYPE STRING,
EVEN_TIMTI TYPE STRING,
EVEN_SOR TYPE STRING,
EVEN_FLGTX TYPE STRING,
EVEN_ICOTX TYPE STRING,
EVEN_FLGAD TYPE STRING,
EVEN_ICOAD TYPE STRING,
EVEN_FLGAP TYPE STRING,
EVEN_ICOAP TYPE STRING,
TIME_TST01 TYPE STRING,
TIME_TST02 TYPE STRING,
TIME_TST03 TYPE STRING,
TIME_TST04 TYPE STRING,
TIME_TST05 TYPE STRING,
TIME_TST06 TYPE STRING,
TIME_FIX01 TYPE STRING,
TIME_FII01 TYPE STRING,
TIME_FIX02 TYPE STRING,
TIME_FII02 TYPE STRING,
TIME_FIX03 TYPE STRING,
TIME_FII03 TYPE STRING,
TIME_FIX04 TYPE STRING,
TIME_FII04 TYPE STRING,
TIME_FIX05 TYPE STRING,
TIME_FII05 TYPE STRING,
TIME_FIX06 TYPE STRING,
TIME_FII06 TYPE STRING,
LOCA_ZON01 TYPE STRING,
LOCA_ZON02 TYPE STRING,
LOCA_ZON03 TYPE STRING,
LOCA_ZON04 TYPE STRING,
LOCA_ZON05 TYPE STRING,
LOCA_ZON06 TYPE STRING,
DIAG_ROW TYPE STRING,
DIAG_MARK TYPE STRING,
DIAG_MODIF TYPE STRING,
DIAG_DIS01 TYPE STRING,
DIAG_DIS02 TYPE STRING,
DIAG_DIS03 TYPE STRING,
DIAG_DIS04 TYPE STRING,
DIAG_DIS05 TYPE STRING,
DIAG_DIS06 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITSEGDIAE_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_ITSEGDIAE_STR-HEAD_HDL sy-vline 
WA_ITSEGDIAE_STR-HEAD_TXT sy-vline 
WA_ITSEGDIAE_STR-HEAD_SOR sy-vline 
WA_ITSEGDIAE_STR-EVEN sy-vline 
WA_ITSEGDIAE_STR-EVEN_TXT sy-vline 
WA_ITSEGDIAE_STR-EVEN_CNT sy-vline 
WA_ITSEGDIAE_STR-EVEN_VERTY sy-vline 
WA_ITSEGDIAE_STR-EVEN_VERTT sy-vline 
WA_ITSEGDIAE_STR-EVEN_VERTI sy-vline 
WA_ITSEGDIAE_STR-EVEN_VERNU sy-vline 
WA_ITSEGDIAE_STR-EVEN_TIMTY sy-vline 
WA_ITSEGDIAE_STR-EVEN_TIMTT sy-vline 
WA_ITSEGDIAE_STR-EVEN_TIMTI sy-vline 
WA_ITSEGDIAE_STR-EVEN_SOR sy-vline 
WA_ITSEGDIAE_STR-EVEN_FLGTX sy-vline 
WA_ITSEGDIAE_STR-EVEN_ICOTX sy-vline 
WA_ITSEGDIAE_STR-EVEN_FLGAD sy-vline 
WA_ITSEGDIAE_STR-EVEN_ICOAD sy-vline 
WA_ITSEGDIAE_STR-EVEN_FLGAP sy-vline 
WA_ITSEGDIAE_STR-EVEN_ICOAP sy-vline 
WA_ITSEGDIAE_STR-TIME_TST01 sy-vline 
WA_ITSEGDIAE_STR-TIME_TST02 sy-vline 
WA_ITSEGDIAE_STR-TIME_TST03 sy-vline 
WA_ITSEGDIAE_STR-TIME_TST04 sy-vline 
WA_ITSEGDIAE_STR-TIME_TST05 sy-vline 
WA_ITSEGDIAE_STR-TIME_TST06 sy-vline 
WA_ITSEGDIAE_STR-TIME_FIX01 sy-vline 
WA_ITSEGDIAE_STR-TIME_FII01 sy-vline 
WA_ITSEGDIAE_STR-TIME_FIX02 sy-vline 
WA_ITSEGDIAE_STR-TIME_FII02 sy-vline 
WA_ITSEGDIAE_STR-TIME_FIX03 sy-vline 
WA_ITSEGDIAE_STR-TIME_FII03 sy-vline 
WA_ITSEGDIAE_STR-TIME_FIX04 sy-vline 
WA_ITSEGDIAE_STR-TIME_FII04 sy-vline 
WA_ITSEGDIAE_STR-TIME_FIX05 sy-vline 
WA_ITSEGDIAE_STR-TIME_FII05 sy-vline 
WA_ITSEGDIAE_STR-TIME_FIX06 sy-vline 
WA_ITSEGDIAE_STR-TIME_FII06 sy-vline 
WA_ITSEGDIAE_STR-LOCA_ZON01 sy-vline 
WA_ITSEGDIAE_STR-LOCA_ZON02 sy-vline 
WA_ITSEGDIAE_STR-LOCA_ZON03 sy-vline 
WA_ITSEGDIAE_STR-LOCA_ZON04 sy-vline 
WA_ITSEGDIAE_STR-LOCA_ZON05 sy-vline 
WA_ITSEGDIAE_STR-LOCA_ZON06 sy-vline 
WA_ITSEGDIAE_STR-DIAG_ROW sy-vline 
WA_ITSEGDIAE_STR-DIAG_MARK sy-vline 
WA_ITSEGDIAE_STR-DIAG_MODIF sy-vline 
WA_ITSEGDIAE_STR-DIAG_DIS01 sy-vline 
WA_ITSEGDIAE_STR-DIAG_DIS02 sy-vline 
WA_ITSEGDIAE_STR-DIAG_DIS03 sy-vline 
WA_ITSEGDIAE_STR-DIAG_DIS04 sy-vline 
WA_ITSEGDIAE_STR-DIAG_DIS05 sy-vline 
WA_ITSEGDIAE_STR-DIAG_DIS06 sy-vline      INTO ld_text SEPARATED BY SPACE.

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