Tell us something about Heap tables.

Answer

- HEAP tables are found in memory.
- They are used for high speed storage on temporary basis.

 

Some of their characteristics are:
- They do not allow BLOB or TEXT fields.
- Only comparison operators like =, <,>, = >,=< , can be used with them.
- AUTO_INCREMENT is not supported by HEAP tables
- Indexes should be NOT NULL

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