DB2 在执行索引或表扫描时，如果遇到一个被另一个事务独占 (X) 锁定的未提交行，那么 DB2 将阻塞在行锁上。

When DB2 performs an index or table scan, DB2 will block on a row lock when it comes across an uncommitted row which another transaction has exclusively (X) locked.

youdao

我们会以独占模式锁定表。

Let's lock the tables in exclusive mode.

youdao

由于employee表中的所有行都被第一个事务独占锁定，第二个应用程序进入了锁等待模式。

As all rows in the EMPLOYEE table are X-locked by the first transaction, the second application goes into lock wait mode.

youdao