ABAP Select data from SAP table IRECONTRACTVALID into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRECONTRACTVALID
*  INTO TABLE @DATA(IT_IRECONTRACTVALID2).
*--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_IRECONTRACTVALID INDEX 1 INTO DATA(WA_IRECONTRACTVALID2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRECONTRACTVALID>-MANDT = 1.
<IRECONTRACTVALID>-COMPANYCODE = 1.
<IRECONTRACTVALID>-REALESTATECONTRACT = 1.
<IRECONTRACTVALID>-INTERNALREALESTATENUMBER = 1.
<IRECONTRACTVALID>-OBJECTINTERNALID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRECONTRACTVALID-CREATEDBYUSER, sy-vline,
  WA_IRECONTRACTVALID-CREATEDBYUSERDESCRIPTION, sy-vline,
  WA_IRECONTRACTVALID-CREATIONDATE, sy-vline,
  WA_IRECONTRACTVALID-CREATIONTIME, sy-vline,
  WA_IRECONTRACTVALID-LASTCHANGEDATE, sy-vline,
  WA_IRECONTRACTVALID-LASTCHANGETIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRECONTRACTVALID 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_IRECONTRACTVALID 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_IRECONTRACTVALID INTO WA_IRECONTRACTVALID.


*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 ALPHA, internal->external for field REALESTATECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IRECONTRACTVALID-REALESTATECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRECONTRACTVALID-REALESTATECONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECONTRACTNUMBEROLD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IRECONTRACTVALID-RECONTRACTNUMBEROLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRECONTRACTVALID-RECONTRACTNUMBEROLD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REMAINCONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IRECONTRACTVALID-REMAINCONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRECONTRACTVALID-REMAINCONTRACT.
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_IRECONTRACTVALID_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
REALESTATECONTRACT TYPE STRING,
INTERNALREALESTATENUMBER TYPE STRING,
OBJECTINTERNALID TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATEDBYUSERDESCRIPTION TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDBYUSERDESCRIPTION TYPE STRING,
RESPONSIBLE TYPE STRING,
RESPONSIBLEUSERFULLNAME TYPE STRING,
RECONTRACTNAME TYPE STRING,
CONTRACTSTARTDATE TYPE STRING,
CONTRACTENDDATE TYPE STRING,
RECONTRACTFIRSTENDDATE TYPE STRING,
RECONTRACTNUMBEROLD TYPE STRING,
REMAINCONTRACTCOMPANYCODE TYPE STRING,
REMAINCONTRACT TYPE STRING,
REAUTHORIZATIONGROUP TYPE STRING,
VALUATIONRELEVANCE TYPE STRING,
VALUATIONRELEVANCEDESC TYPE STRING,
REIDENTIFICATIONTYPE TYPE STRING,
REIDENTIFICATIONKEY TYPE STRING,
COMPANYCODENAME TYPE STRING,
RECONTRACTTYPE TYPE STRING,
RECONTRACTTYPENAME TYPE STRING,
RECONTRACTSYSTSTATUS TYPE STRING,
RECONTRACTUSERSTATUS TYPE STRING,
RECONTRACTSTATUS TYPE STRING,
ISACTIVE TYPE STRING,
ISDELETED TYPE STRING,
COUNTRY TYPE STRING,
COUNTRYNAME TYPE STRING,
NUMBEROFRECONTRACTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRECONTRACTVALID_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_IRECONTRACTVALID_STR-MANDT sy-vline 
WA_IRECONTRACTVALID_STR-COMPANYCODE sy-vline 
WA_IRECONTRACTVALID_STR-REALESTATECONTRACT sy-vline 
WA_IRECONTRACTVALID_STR-INTERNALREALESTATENUMBER sy-vline 
WA_IRECONTRACTVALID_STR-OBJECTINTERNALID sy-vline 
WA_IRECONTRACTVALID_STR-CREATEDBYUSER sy-vline 
WA_IRECONTRACTVALID_STR-CREATEDBYUSERDESCRIPTION sy-vline 
WA_IRECONTRACTVALID_STR-CREATIONDATE sy-vline 
WA_IRECONTRACTVALID_STR-CREATIONTIME sy-vline 
WA_IRECONTRACTVALID_STR-LASTCHANGEDATE sy-vline 
WA_IRECONTRACTVALID_STR-LASTCHANGETIME sy-vline 
WA_IRECONTRACTVALID_STR-LASTCHANGEDBYUSER sy-vline 
WA_IRECONTRACTVALID_STR-LASTCHANGEDBYUSERDESCRIPTION sy-vline 
WA_IRECONTRACTVALID_STR-RESPONSIBLE sy-vline 
WA_IRECONTRACTVALID_STR-RESPONSIBLEUSERFULLNAME sy-vline 
WA_IRECONTRACTVALID_STR-RECONTRACTNAME sy-vline 
WA_IRECONTRACTVALID_STR-CONTRACTSTARTDATE sy-vline 
WA_IRECONTRACTVALID_STR-CONTRACTENDDATE sy-vline 
WA_IRECONTRACTVALID_STR-RECONTRACTFIRSTENDDATE sy-vline 
WA_IRECONTRACTVALID_STR-RECONTRACTNUMBEROLD sy-vline 
WA_IRECONTRACTVALID_STR-REMAINCONTRACTCOMPANYCODE sy-vline 
WA_IRECONTRACTVALID_STR-REMAINCONTRACT sy-vline 
WA_IRECONTRACTVALID_STR-REAUTHORIZATIONGROUP sy-vline 
WA_IRECONTRACTVALID_STR-VALUATIONRELEVANCE sy-vline 
WA_IRECONTRACTVALID_STR-VALUATIONRELEVANCEDESC sy-vline 
WA_IRECONTRACTVALID_STR-REIDENTIFICATIONTYPE sy-vline 
WA_IRECONTRACTVALID_STR-REIDENTIFICATIONKEY sy-vline 
WA_IRECONTRACTVALID_STR-COMPANYCODENAME sy-vline 
WA_IRECONTRACTVALID_STR-RECONTRACTTYPE sy-vline 
WA_IRECONTRACTVALID_STR-RECONTRACTTYPENAME sy-vline 
WA_IRECONTRACTVALID_STR-RECONTRACTSYSTSTATUS sy-vline 
WA_IRECONTRACTVALID_STR-RECONTRACTUSERSTATUS sy-vline 
WA_IRECONTRACTVALID_STR-RECONTRACTSTATUS sy-vline 
WA_IRECONTRACTVALID_STR-ISACTIVE sy-vline 
WA_IRECONTRACTVALID_STR-ISDELETED sy-vline 
WA_IRECONTRACTVALID_STR-COUNTRY sy-vline 
WA_IRECONTRACTVALID_STR-COUNTRYNAME sy-vline 
WA_IRECONTRACTVALID_STR-NUMBEROFRECONTRACTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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