In addition to setting the error code, PDO will emit a traditional E_WARNING message.
除了设置错误代码以外，PDO还将发出一条传统的E_WARNING消息。
The setting of the error catch is also reported in the db2diag.log.
log报告中也包括错误捕捉设置。
Property setting consists of a short description of the error.
属性设置包含错误的简短说明。
Property setting consists of a short description of the error.
属性设置包含错误的简短说明。
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