mysql study guide

piaoling  2011-12-10 17:15:10
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=332&p_org_id=1243197&lang=ZHS

http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_exam_id=1Z0_871

http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_exam_id=1Z0_872
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