How to intercept a database error message?

怎样截获数据库的错误信息？

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Database error check has important meaning to data accuracy.

数据差错检查对于数据准确性具有重要意义。

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Examinee database error check has important meaning to examinee data accuracy.

考试报名数据差错检查对于考生数据准确性具有重要意义。

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The company issued a statement, apologising "for any inconvenience caused by this database update error".

BBC: Kaspersky anti-virus cuts web access of thousands of PCs

Instead of using optics for the entire retrieval process, they use it to guide a second, electronic (and error-free) search of a large, conventionally stored database.

ECONOMIST: Optical recognition