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![[MySQL] SELECT ... FOR UPDATE 的 Row Lock 與 Table Lock : Neo 's Blog]()
www.neo.com.tw先前介紹過 SELECT ... FOR UPDATE 的用法，不過鎖定(Lock)的資料是判別就得要注意一下了。由於 InnoDB 預設是 Row-Level Lock，所以只有「明確」的指定主鍵，MySQL 才會執行 Row lock (只鎖住被選取的資料例) ，否則 MySQL 將會執行 Table Lock (將整個 ...瀏覽：606 -
![14.6.3.4 SELECT ... FOR UPDATE and SELECT ... LOCK IN SHARE ...]()
docs.oracle.comIf you query data and then insert or update related data within the same transaction, the regular SELECT statement does not give enough protection.瀏覽：1180
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日期：2026-04-17
You Asked Hi Tom, From my knowledge of oracle, i understand that SELECT FOR UPDATE clause acquires row locks. In that case, if in a given table, when my query updates one set of data, same query should be able to update different set of data by using ......
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日期：2026-04-23
My JDBC code uses " select for update" to modify record in Oracle database. I tried to simulate network ......
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日期：2026-04-18
14.6.3.4 SELECT ... FOR UPDATE and SELECT ... LOCK IN SHARE MODE Locking Reads Prev 14.6.3 InnoDB ......
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日期：2026-04-24
Oracle Select For Update Release Lock? - Find Questions and Answers at Askives, the first startup that ......
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日期：2026-04-21
僅允許其他事務查詢被鎖定的表。一個有效的共用鎖明確地用 Select … For update ... Oracle Hint Oracle Lock 機制 ......
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日期：2026-04-21
Hi All, The application will send " SELECT .. FOR UPDATE" statement when end-user click one module on ......
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日期：2026-04-20
Oracle Magazine Subscriptions and Oracle White Papers Oracle Select Statements Version 11.1 ... Select ......
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日期：2026-04-18
Hi, Kodo Team. I have Oracle Clob Column. When I write more than 4000, Kodo generates " SELECT ... FOR ......
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