Index organizational tables and common tables

Official documents docs.oracle.comcdb19306_01server.102b14220schema.htm # The data Insertion Location of the CNCPT911 heaptable table is random, mainly determined by the idle data blocks in the database. The retrieved data is calculated based on the hit rate, during full table scan, no data must be inserted first. Index Table (iot

Official documents http://docs.oracle.com/cd/B19306_01/server.102/b14220/schema.htm#CNCPT911 heap table (heap table) data inserted from time to time storage location is random, mainly depends on the idle condition of the database block, the acquisition of data is calculated according to the hit rate, during full table scan, no data must be inserted first. Index Table (iot

Official documentation

Http://docs.oracle.com/cd/B19306_01/server.102/b14220/schema.htm#CNCPT911

The storage location of heap table data is random when it is inserted. It is mainly determined by the idle data blocks in the database. The data obtained is calculated based on the hit rate, during full table scan, no data must be inserted first.

The index table (iot) Data Storage stores the table in an indexed manner. The data is ordered, and the data location is pre-determined. It has nothing to do with the insertion sequence.

The query efficiency of the index table is higher than that of the heap table (equivalent to the efficiency of the query index), and the data insertion speed is slower than that of the heap table.