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- LOCK TABLE EMP IN SHARE MODE; 给表加共享锁;
- Lock Table TableName In Share Mode 形式锁定行,或执行
- LOCK TABLE TableName IN SHARE MODE; LOCK TABLE TableName IN SHARE ROW EXCLUSIVE MODE; LOCK TABLE TableName IN ROW EXCLUSIVE MODE; LOCK TABLE TableName IN EXCLUSIVE MODE; 来准确在锁定行而不能更新行。禁止的操作:拥有行级排它锁的事务不允许其它事务有除共享锁外的其它形式的锁加在同一张表上或更新该表。即下面的语句是不被允许的
- LOCK TABLE IN SHARE MODE 表共享锁定:通过
- Lock Table TableName In Share Row Exclusive Mode; 它比共享锁有更多限制。定义共享行级排它锁的语法为
- LOCK TABLE IN SHARE ROW EXCLUSIVE MODE 表共享行独占:通过
- However, the lock can only be acquired in shared mode if there are no uncommitted modifications to the table by other transactions. 但是,如果表上没有由其它事务所做的未提交修改,则只能在共享模式下获得此锁。
- If acquired in shared mode, other transactions cannot modify the rows unless they acquire the lock in intent mode. 如果在共享模式下获得锁,则其它事务不能修改行,除非在意图模式下获得此锁。
- For example, in the following sequence of calls, the resource is held in Exclusive mode instead of in Shared mode. 例如,在以下调用顺序中,将以Exclusive模式而非Shared模式控制资源。
- Professional builds on the functionality of Standard by adding enhanced deployability features as well as the ability to run CrossOver in shared mode from a single machine. 所有资源请在下载后24小时内删除。
- Lock table tablename in share 锁;以上是自动获得的;手工执行
- So a static table in shared memory is used. 因此将使用共享内存中的一个静态表。
- The rise in share prices failed to materialize. 股价没有上涨。
- There was a slump in share prices. 股票价格暴跌。
- The experiments show that the simulator can simulate the ESD EMP in laboratory. 实验表明 ,用这种装置能够实现对静电放电电磁脉冲的实验室模拟。 实现了人们用 GTEM室产生 ESD EMP的梦想。
- Many investors were caught out by the fall in share prices. 许多投资者由于股价下跌而突然陷入困境。
- The company has survived the recent upset in share prices. 这家公司撑过了最近股价的动荡。
- The sudden rise in share prices has confounded economists. 股价的突然上涨使经济学家们大惑不解。
- This might be used, for example, to allow COMMIT statements to be performed at regular intervals to limit the size of the rollback log and lock table. 例如,这可以用来允许COMMIT语句定期执行,以限制回退日志和锁定表的大小。