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The current server SQL mode, which can be set dynamically. For details, see Section 5.1.11, “Server SQL Modes” . 

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• sql_notes 

## Note 

MySQL installation programs may configure the SQL mode during the installation process. 

If the SQL mode differs from the default or from what you expect, check for a setting in an option file that the server reads at startup. 

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If enabled (the default), diagnostics of Note  level increment warning_count  and the server records them. If disabled, Note  diagnostics do not increment warning_count  and the server does not record them. mysqldump  includes output to disable this variable so that reloading the dump file does not produce warnings for events that do not affect the integrity of the reload operation. 

