Transaction Isolation Levels Wikipedia S Organizational Database Use Dirty Read Nonrepeata Q37130511

Which transaction isolation levels does wikipedia’sorganizational database use?

(dirty read, nonrepeatable read, phantom read, read uncommitted,read committed, repeatable read, serializable)

Solution

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Dirty reads May occur Don’t occur Don’t occur Don’t occur Isolation Level Read Uncommitted Read Committed Repeatable Read Serializable Non-repeatable reads May occur May occur Don’t occur Don’t occur Phantoms May occur May occur May occur

OR

 

OR