How to remove precision value in oracle table

Question

Hi,
I have created one table ,that table contains 40 million records and some of the columns containing precision values and the columns are of datatype is NUMBER...
I need to remove precision values of those columns for 40 millions records which ever contains ,If I use update truncate scripts it's taking so long time to update ( for .eg. more than 2 weak to update --- update table_name set transaction_id=trunc(transaction_id) ).Is there any other way...
so can you please suggest ....
Thanks,
vidhya

Answer 1

hi marcopb,
Below I have mentioned some columns in bold, which i am updating . yes it's taking to update more than 2 weak not yet finished...
My update script is Update Inv.Mtl_Material_Transactions Set Transaction_Id=Trunc(Transaction_Id),Transaction_Action_Id=Trunc(Transaction_Action_Id),
Transaction_Source_Id=Trunc(Transaction_Source_Id),Rcv_Transaction_Id =Trunc(Rcv_Transaction_Id );
describe mtl_material_transactions;
Name Null Type
TRANSACTION_ID NOT NULL NUMBER
LAST_UPDATE_DATE NOT NULL DATE
LAST_UPDATED_BY NOT NULL NUMBER
CREATION_DATE NOT NULL DATE
CREATED_BY NOT NULL NUMBER
LAST_UPDATE_LOGIN NUMBER
REQUEST_ID NUMBER
PROGRAM_APPLICATION_ID NUMBER
PROGRAM_ID NUMBER
PROGRAM_UPDATE_DATE DATE
INVENTORY_ITEM_ID NOT NULL NUMBER
REVISION VARCHAR2(3)
ORGANIZATION_ID NOT NULL NUMBER
SUBINVENTORY_CODE VARCHAR2(10)
LOCATOR_ID NUMBER
TRANSACTION_TYPE_ID NOT NULL NUMBER
TRANSACTION_ACTION_ID NOT NULL NUMBER
TRANSACTION_SOURCE_TYPE_ID NOT NULL NUMBER
TRANSACTION_SOURCE_ID NUMBER
TRANSACTION_SOURCE_NAME VARCHAR2(30)
TRANSACTION_QUANTITY NOT NULL NUMBER
TRANSACTION_UOM NOT NULL VARCHAR2(3)
PRIMARY_QUANTITY NOT NULL NUMBER
TRANSACTION_DATE NOT NULL DATE
VARIANCE_AMOUNT NUMBER
ACCT_PERIOD_ID NUMBER
TRANSACTION_REFERENCE VARCHAR2(240)
REASON_ID NUMBER
DISTRIBUTION_ACCOUNT_ID NUMBER
ENCUMBRANCE_ACCOUNT NUMBER
ENCUMBRANCE_AMOUNT NUMBER
COST_UPDATE_ID NUMBER
COSTED_FLAG VARCHAR2(1)
INVOICED_FLAG VARCHAR2(1)
ACTUAL_COST NUMBER
TRANSACTION_COST NUMBER
PRIOR_COST NUMBER
NEW_COST NUMBER
CURRENCY_CODE VARCHAR2(10)
CURRENCY_CONVERSION_RATE NUMBER
CURRENCY_CONVERSION_TYPE VARCHAR2(30)
CURRENCY_CONVERSION_DATE DATE
USSGL_TRANSACTION_CODE VARCHAR2(30)
QUANTITY_ADJUSTED NUMBER
EMPLOYEE_CODE VARCHAR2(10)
DEPARTMENT_ID NUMBER
OPERATION_SEQ_NUM NUMBER
MASTER_SCHEDULE_UPDATE_CODE VARCHAR2(10)
RECEIVING_DOCUMENT VARCHAR2(10)
PICKING_LINE_ID NUMBER
TRX_SOURCE_LINE_ID NUMBER
TRX_SOURCE_DELIVERY_ID NUMBER
REPETITIVE_LINE_ID NUMBER
PHYSICAL_ADJUSTMENT_ID NUMBER
CYCLE_COUNT_ID NUMBER
RMA_LINE_ID NUMBER
TRANSFER_TRANSACTION_ID NUMBER
TRANSACTION_SET_ID NUMBER
RCV_TRANSACTION_ID NUMBER
MOVE_TRANSACTION_ID NUMBER
COMPLETION_TRANSACTION_ID NUMBER
SOURCE_CODE VARCHAR2(30)
SOURCE_LINE_ID NUMBER
VENDOR_LOT_NUMBER VARCHAR2(30)
TRANSFER_ORGANIZATION_ID NUMBER
TRANSFER_SUBINVENTORY VARCHAR2(10)
TRANSFER_LOCATOR_ID NUMBER
SHIPMENT_NUMBER VARCHAR2(30)
TRANSFER_COST NUMBER
TRANSPORTATION_DIST_ACCOUNT NUMBER
TRANSPORTATION_COST NUMBER
TRANSFER_COST_DIST_ACCOUNT NUMBER
WAYBILL_AIRBILL VARCHAR2(20)
FREIGHT_CODE VARCHAR2(30)
NUMBER_OF_CONTAINERS NUMBER
VALUE_CHANGE NUMBER
PERCENTAGE_CHANGE NUMBER
ATTRIBUTE_CATEGORY VARCHAR2(30)
ATTRIBUTE1 VARCHAR2(150)
ATTRIBUTE2 VARCHAR2(150)
ATTRIBUTE3 VARCHAR2(150)
ATTRIBUTE4 VARCHAR2(150)
ATTRIBUTE5 VARCHAR2(150)
ATTRIBUTE6 VARCHAR2(150)
ATTRIBUTE7 VARCHAR2(150)
ATTRIBUTE8 VARCHAR2(150)
ATTRIBUTE9 VARCHAR2(150)
ATTRIBUTE10 VARCHAR2(150)
ATTRIBUTE11 VARCHAR2(150)
ATTRIBUTE12 VARCHAR2(150)
ATTRIBUTE13 VARCHAR2(150)
ATTRIBUTE14 VARCHAR2(150)
ATTRIBUTE15 VARCHAR2(150)
MOVEMENT_ID NUMBER
TRANSACTION_GROUP_ID NUMBER
TASK_ID NUMBER(15)
TO_TASK_ID NUMBER(15)
Thanks,
vidhya