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28. 7. 7. 60 mysql _reset _connection ()

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int mysql_reset_connection(MYSQL *mysql)

Description

Resets the connection to clear the session state.

mysql_reset_connection() has effects similar to mysql_change_user() or an auto-reconnect except that the connection is not closed and reopened, and reauthentication is not done. The write set session history is reset. See Section 28.7.7.3, “mysql_change_user()”) and see Section 28.7.28, “C API Automatic Reconnection Control”).

The connection-related state is affected as follows:

  • Any active transactions are rolled back and autocommit mode is reset.

  • All table locks are released.

  • All TEMPORARY tables are closed (and dropped).

  • Session system variables are reinitialized to the values of the corresponding global system variables, including system variables that are set implicitly by statements such as SET NAMES.

  • User variable settings are lost.

  • Prepared statements are released.

  • HANDLER variables are closed.

  • The value of LAST_INSERT_ID() is reset to 0.

  • Locks acquired with GET_LOCK() are released.

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Return Values

Zero for success. Nonzero if an error occurred.


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Document created the 26/06/2006, last modified the 26/10/2018
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