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Reference : Locking and Isolation Levels
 

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Locking and Isolation Levels

This chapter discusses locking and isolation levels and how their settings can affect the data you retrieve. Different database systems support different locking and isolation levels.
Note: Refer to the driver chapter in the DataDirect Connect Series for ODBC User’s Guide for more locking and isolation level information.
In this section: 
* Locking
* Isolation Levels
* Locking Modes and Levels