Establish Table Release For Free

When issuing a DROP TABLE statement in Oracle, you can specify the PURGE option. The PURGE option will purge the table and its dependent objects so that they do not appear in the recycle bin. The risk of specifying the PURGE option is that you will not be able to recover the table.

Use the PURGE statement to remove a table or index from your recycle bin and release all of the space associated with the object, or to remove the entire recycle bin, or to remove part of all of a dropped tablespace from the recycle bin.

Purging is the process of freeing up space in the database or of deleting obsolete data that is not required by the system. The purge process can be based on the age of the data or the type of data.

SQL CREATE TABLE Statement CREATE TABLE tablename ( column1 datatype, column2 datatype, column3 datatype,Example. CREATE TABLE Persons ( PersonID int,CREATE TABLE newtablename AS. SELECT column1, column2,... FROM existingtablename.Example. CREATE TABLE TestTable AS. SELECT customername, contactname.

The Oracle BFILE data type is an Oracle LOB data type that contains a reference to binary data with a maximum size of 4 gigabytes. An Oracle BFILE differs from other Oracle LOB data types in that its data is stored in a physical file in the operating system instead of on the server.

The main purpose is to represent the numerical data. A table is an important tool that we can add in our digital presence to clearly show the mathematical data or the numerical data. We can customize the table feature according to our needs.

Use the TRUNCATE TABLE statement to remove all rows from a table. By default, Oracle Database also performs the following tasks: Deallocates all space used by the removed rows except that specified by the MINEXTENTS storage parameter.