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How can upgrade db2 9.5.to db2 10.5?

Hello,

You will need to upgrade to DB2 V9.7 or V10.1 first.
http://www.ibm.com/support/knowledgecenter/en/SSEPGG_10.5.0/com.ibm.db2.luw.qb.upgrade.doc/doc/c0011933.html

Thanks,

Eric Sheridan