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TRUNCATE TABLE



Oracle - Truncate Table


In Oracle, TRUNCATE TABLE statement is used to remove all records from a table. It works same as DELETE statement but without specifying a WHERE clause. It is generally used when you don't have to worry about rolling back

Once a table is truncated, it can't be rolled back. The TRUNCATE TABLE statement does not affect any of the table's indexes, triggers or dependencies.


Syntax :
TRUNCATE TABLE [schema_name.]table_name   

Parameters :

  • schema_name : This parameter specifies the name of the schema that the table belongs to. It is optional.

  • table_name : It specifies the table that you want to truncate.


    Lets take an example of table containing 'customers' info to perform Truncate Query :
    Customer_idnamelastnamecity
    1MeherishChowdaryGujarat
    2AjaashiNehraMaharashtra
    3KaivalyaBhoopalamKarnataka

    Oracle TRUNCATE Table Example :


    Consider a table named "customers" and execute the following query to truncate this

    TRUNCATE TABLE customers;  
    
    

    Output :

    Table truncated.
    

    Now check the customers table, you will find that there is no data available in that table. It is equally similar to DELETE TABLE statement in Oracle.



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