= doc.FAQ.WhatDoINeedToEstablishAMulti-TierJDBCConnection

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*You need to install one of Sun's Java Runtime Environments (JRE) on the machine that contains your client application.  
*You need to install one of [[OpenLink]]  's .jar files on the machine that contains your JAVA client application. (The JAVA version of the .jar should match the JAVA version of the JRE.)  
*You need to install [[OpenLink]]  's server components on a machine that contains one of the following entities:  
*The actual database  
*A database native client that connects to the database  

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