Sharedlockvsexclusivelock

2023年4月18日 — 1 Shared and exclusive locks ... Shared locks allow multiple transactions to read the same data, but prevent any transaction from modifying it.

The shared lock ensures that a record is not in the process of being updated during a read-only request. It is also used to prevent updates of a record between ...

2023年3月17日 — Shared lock can be placed on objects that do not have an exclusive lock already placed on them. Exclusive lock can only be placed on objects ...

2023年5月27日 — 然而，在某些特定情況下，例如只讀查詢或者對交易支持要求不高的情況下，MyISAM引擎可能是一個合適的選擇。 標籤: Exclusive Lock Row Lock Shared Lock ...

2023年5月9日 — Exclusive Lock. An exclusive lock, on the other hand, is a type of lock that grants exclusive access to a piece of data to a single transaction.

A shared lock means multiple transactions can be holding the same lock at the same time, where same lock is a combination of resource type and resource id.

2012年8月6日 — Exclusive lock mode prevents the associated resource from being shared. This lock mode is obtained to modify data. The first transaction to lock ...

2019年6月20日 — Shared Lock (Read Lock, S-Lock). 資料被加上Shared Lock 時，就無法再被加上Exclusive Lock，所以其他Transaction 將無法對這筆資料做寫 ...

Shared lock vs Exclusive lock. shared lock 就是read lock. exclusive lock 就是write lock. 換個名稱而已= = Others. 確保讀取者讀 ...