ABAP Select data from SAP table ISUEDI_NBSERVICE_CONTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISUEDI_NBSERVICE_CONTR
*  INTO TABLE @DATA(IT_ISUEDI_NBSERVICE_CONTR2).
*--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_ISUEDI_NBSERVICE_CONTR INDEX 1 INTO DATA(WA_ISUEDI_NBSERVICE_CONTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISUEDI_NBSERVICE_CONTR>-WMODE = 1.
<ISUEDI_NBSERVICE_CONTR>-OPEN_WMODE = 1.
<ISUEDI_NBSERVICE_CONTR>-UPD_ONLINE = 1.
<ISUEDI_NBSERVICE_CONTR>-NO_DIALOG = 1.
<ISUEDI_NBSERVICE_CONTR>-NUM_RANGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISUEDI_NBSERVICE_CONTR-NO_CHANGE, sy-vline,
  WA_ISUEDI_NBSERVICE_CONTR-NO_OTHER, sy-vline,
  WA_ISUEDI_NBSERVICE_CONTR-NO_EVENT, sy-vline,
  WA_ISUEDI_NBSERVICE_CONTR-NO_STATISTIC, sy-vline,
  WA_ISUEDI_NBSERVICE_CONTR-NO_CHANGE_DOC, sy-vline,
  WA_ISUEDI_NBSERVICE_CONTR-CALLED_BY_IDOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISUEDI_NBSERVICE_CONTR 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_ISUEDI_NBSERVICE_CONTR 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_ISUEDI_NBSERVICE_CONTR INTO WA_ISUEDI_NBSERVICE_CONTR.


*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_ISUEDI_NBSERVICE_CONTR_STR, 
WMODE TYPE STRING,
OPEN_WMODE TYPE STRING,
UPD_ONLINE TYPE STRING,
NO_DIALOG TYPE STRING,
NUM_RANGE TYPE STRING,
NO_CHANGE TYPE STRING,
NO_OTHER TYPE STRING,
NO_EVENT TYPE STRING,
NO_STATISTIC TYPE STRING,
NO_CHANGE_DOC TYPE STRING,
CALLED_BY_IDOC TYPE STRING,
PROPRICE TYPE STRING,
INPERR TYPE STRING,
ENQ_DONE TYPE STRING,
CURFIELD TYPE STRING,
CURLINE TYPE STRING,
CURDYNNR TYPE STRING,
SETCURFIELD TYPE STRING,
SETCURLINE TYPE STRING,
SETCURDYNNR TYPE STRING,
TEXT_CHANGED TYPE STRING,
EXTINTKZ TYPE STRING,
EXIT_TYPE TYPE STRING,
FULLSCREEN TYPE STRING,
SAVE_OKCODE TYPE STRING,
TEILOBJ TYPE STRING,
S_FUBA TYPE STRING,
INPUT_FIELD_OFF TYPE STRING,
NOFULLSCREEN TYPE STRING,
DB_UPDATE TYPE STRING,
CHANGEFLAG TYPE STRING,
WA_ADR_DONE TYPE STRING,
IESERVICEDET TYPE STRING,
OPAREA TYPE STRING,
PODSERVICE TYPE STRING,
DEREGSWITCH TYPE STRING,
SPAGREE_ACTIV TYPE STRING,
SCENARIO_ACTIV TYPE STRING,
PAYM_HANDL_ACTIV TYPE STRING,
SERV_FIND_ACTIV TYPE STRING,
SWITCH_FU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISUEDI_NBSERVICE_CONTR_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_ISUEDI_NBSERVICE_CONTR_STR-WMODE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-OPEN_WMODE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-UPD_ONLINE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-NO_DIALOG sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-NUM_RANGE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-NO_CHANGE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-NO_OTHER sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-NO_EVENT sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-NO_STATISTIC sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-NO_CHANGE_DOC sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-CALLED_BY_IDOC sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-PROPRICE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-INPERR sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-ENQ_DONE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-CURFIELD sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-CURLINE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-CURDYNNR sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-SETCURFIELD sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-SETCURLINE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-SETCURDYNNR sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-TEXT_CHANGED sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-EXTINTKZ sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-EXIT_TYPE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-FULLSCREEN sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-SAVE_OKCODE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-TEILOBJ sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-S_FUBA sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-INPUT_FIELD_OFF sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-NOFULLSCREEN sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-DB_UPDATE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-CHANGEFLAG sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-WA_ADR_DONE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-IESERVICEDET sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-OPAREA sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-PODSERVICE sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-DEREGSWITCH sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-SPAGREE_ACTIV sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-SCENARIO_ACTIV sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-PAYM_HANDL_ACTIV sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-SERV_FIND_ACTIV sy-vline 
WA_ISUEDI_NBSERVICE_CONTR_STR-SWITCH_FU sy-vline      INTO ld_text SEPARATED BY SPACE.

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