Tablespace (_tbs)

	Big Tablespace		1 Datafile 
	Small Tablespace	More than One Data File 
	
	Logical 
		DataFile
			8 Blocks - Extend 
			
	1. User Tablespace 
	
		DBA Create Tablespace
		
		SYSTEM | USERS | SYSAUX
		
		cititbs_1
		cititbs_2
		
	2. Temp tableSpace
			
			Sorting | Calculation like salary*12 | GROUP BY | Group Function 
			
	3. Undo Tablespace 
	
			Contains Uncommited Info 
			9000 sec - 15 Min 
			Extend it 
			
			Snapshot Error