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READCOMMITTED

网络读已提交；读提交；隔离级别是提交读

READCOMMITTED

READCOMMITTED

READCOMMITTED

读已提交

　　读已提交(Readcommitted)可能出现不可重复读，幻读　　可重复读(Repeatableread)可能出现幻读(幻影数据，执行插入一条数据…

读提交

为了防止数据库崩溃使数据丢失的解决方案 -... ... readuncommitted: 读未提交 readcommitted: 读提交 repeatableread: 可重读 ...

隔离级别是提交读

它的默认隔离级别是提交读（readcommitted），在该级别下，可能会有丢失更新的问题。Oracle的默认情形也一样。

读取

◆授权读取（ReadCommitted）：允许不可重复读取，但不允许脏读取。这可以通过“瞬间共享读锁”与“排它写锁”实现... 阅读全 …

1

It opens a third connection and initiates a transaction using the READ COMMITTED isolation level to attempt to read the data in the table .

打开第三个连接，并使用 READCOMMITTED 隔离级别开始一个事务，尝试读取表中的数据。

2

READPAST can only be specified in transactions operating at the READ COMMITTED or REPEATABLE READ isolation levels .

仅可在运行于 READCOMMITTED 或 REPEATABLEREAD 隔离级别的事务中指定 READPAST 。

3

The new READ_COMMITTED_SNAPSHOT isolation level can transparently replace READ COMMITTED for all transactions .

新的 READ_COMMITTED_SNAPSHOT 隔离级别可以透明地替换所有事务的 READCOMMITTED 。

4

9; The READ COMMITTED isolation level guarantees that the SELECT statements will never read uncommitted data, by issuing shared locks .

READCOMMITTED 隔离级别通过发布共享锁确保 SELECT 语句永远不读取未提交的数据。

5

Specifies that read operations comply with the rules for the READ COMMITTED isolation level by using locking .

指定读操作使用锁定来遵循有关 READCOMMITTED 隔离级别的规则。

6

Read committed -- The transaction can read data committed by other transactions.

Readcommitted （读已提交）——事务可以读取由另一事务提交的数据。

7

Setting the READ_COMMITTED_SNAPSHOT ON option allows access to versioned rows under the default READ COMMITTED isolation level .

设置 READ_COMMITTED_SNAPSHOTON 选项后，可以使用默认的 READCOMMITTED 隔离级别访问版本化的行。

8

REPEATABLE READ is a more restrictive isolation level than READ COMMITTED.

REPEATABLEREAD 是比 READCOMMITTED 限制性更强的隔离级别。

9

READ COMMITTED isolation level when the READ_COMMITTED_SNAPSHOT database option is ON .

当 READ_COMMITTED_SNAPSHOT 数据库选项为 ON 时，使用 READCOMMITTED 隔离级别。

10

READ COMMITTED is the default isolation level for SQL Server.

READCOMMITTED 是 SQLServer 默认的隔离级别。

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