To allow shift to the environment of a key-value type database 3 without modification of an existing system based on the premise of using RDB.
A conversion module determination unit sequentially executes request SQL analysis modules in each conversion module set on the basis of a request SQL transmitted from an existing system and determines that a conversion module set having request SQL analysis modules which have succeeded in the analysis is to be used. A DB calling-out execution unit converts the request SQL into a request to a key-value type database by using the determined conversion module set and obtains a return value indicating the processing result of execution processing of the converted request. A DB calling-out result conversion unit converts the obtained return value into a return value indicating the processing result of the request SQL by using the determined conversion module set. A DB request processing unit transmits the converted return value to the existing system.
YAMADA MASATAKA
IKEGAMI MICHIYO
NISHI KAZUYOSHI
TOSHIBA SOLUTIONS CORP
| JP2011165148A | 2011-08-25 | |||
| JP2011113103A | 2011-06-09 | |||
| JP2011008451A | 2011-01-13 |
CSNG201100175012; 黒田貴之ほか２名: 'シングルテナント型システムからの移行に適したマルチテナント型データベースシステムの構成法' 情報処理学会論文誌 論文誌ジャーナル Ｖｏｌ．５２ Ｎｏ．３ ［ＣＤ-ＲＯＭ］ 第５２巻 第３号, 20110315, ｐｐ．１１２６〜１１３５, 一般社団法人情報処理学会
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