| 摘要 |
PROBLEM TO BE SOLVED: To provide a data duplexing system, which can duplex data without conscious of subsequent processing between servers if a client performs data access to an arbitrary one server. SOLUTION: A management method for duplexed databases has a server access switching means in the side of a client that inputs and outputs data, a mode operation means in the side of a database and a plurality of virtual table means. Each of the virtual table means has a table access switching means, a real table access means for a server itself, a real table access means for other servers, a temporary storage table access means, a real table means, a temporary storage table means and a stored data recovery means. COPYRIGHT: (C)2006,JPO&NCIPI
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