Multiple occurrences of an activity do not necessarily lead to a process execution error, but they can affect the readability of the model.
某个活动的多次出现，不一定会导致流程执行错误，但是它会影响模型的可读性。
If a NOT LOGGED table encounters an execution error during a data changing statement there is only one choice for DB2: to truncate the table.
如果NOT LOGGED表在执行数据修改语句期间碰到了执行错误，那么对于DB 2来说，就只有一个选择：清空(truncate)该表。
If the Database Engine encounters a row that is too long, an execution error is returned.
如果数据库引擎遇到过长的行，则返回执行错误。
应用程序执行错误。
应用程序执行错误。
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