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Returns a string. )r rr)r8r:r:r;rs z!MySQLConnectionAbstract.collationcCsdS)z>> cnx = mysql.connector.connect(..) >>> cnx.start_transaction(isolation_level='SERIALIZABLE') Raises ProgrammingError when a transaction is already in progress and when ValueError when isolation_level specifies an Unknown level. zTransaction already in progressrb zREAD UNCOMMITTEDzREAD COMMITTEDzREPEATABLE READZ SERIALIZABLEzUnknown isolation level "{0}"z#SET TRANSACTION ISOLATION LEVEL {0}Nz6MySQL server version {0} does not support this featurez READ ONLYz READ WRITEzSET TRANSACTION {0}zSTART TRANSACTIONz WITH CONSISTENT SNAPSHOT)rrr) rrrrhrrirrOrr!r~)r8Zconsistent_snapshotZisolation_levelreadonlylevelZlevelsZ access_moderr:r:r;start_transactions2      z)MySQLConnectionAbstract.start_transactionc Cs|jstjdy |jWnDtjtfk rb|jrFtjdn|j|j|j |j |j YnX|sl|r|j }|rx(|j D]\}}|jdj||fqW|rx(|j D]\}}|jdj||fqW|jdS)aClears the current active session This method resets the session state, if the MySQL server is 5.7.3 or later active session will be reset without re-authenticating. For other server versions session will be reset by re-authenticating. It is possible to provide a sequence of variables and their values to be set after clearing the session. This is possible for both user defined variables and session variables. This method takes two arguments user_variables and session_variables which are dictionaries. Raises OperationalError if not connected, InternalError if there are unread results and InterfaceError on errors. zMySQL Connection not available.zZReset session is not supported with compression for MySQL server version 5.7.2 or earlier.zSET @`{0}` = %szSET SESSION `{0}` = %sN)rrZOperationalErrorcmd_reset_connectionrNotImplementedErrorr6cmd_change_userr$r%r&rrrMexecuterOr>)r8Zuser_variablesZsession_variablescurrrWr:r:r; reset_sessionOs&   z%MySQLConnectionAbstract.reset_sessioncCs@|r4t|tr4tj|jd}||_|||j|_ntddS)z Set the converter class to be used. 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Coding Example: 1) Defining the Stored Routine in MySQL: CREATE PROCEDURE multiply(IN pFac1 INT, IN pFac2 INT, OUT pProd INT) BEGIN SET pProd := pFac1 * pFac2; END 2) Executing in Python: args = (5,5,0) # 0 is to hold pprod cursor.callproc('multiply', args) print(cursor.fetchone()) Does not return a value, but a result set will be available when the CALL-statement execute successfully. Raises exceptions when something is wrong. Nr:)r8Zprocnameargsr:r:r;callprocszMySQLCursorAbstract.callproccCsdS)zClose the cursor.Nr:)r8r:r:r;r> szMySQLCursorAbstract.closeFcCsdS)aExecutes the given operation Executes the given operation substituting any markers with the given parameters. For example, getting all rows where id is 5: cursor.execute("SELECT * FROM t1 WHERE id = %s", (5,)) The multi argument should be set to True when executing multiple statements in one operation. If not set and multiple results are found, an InterfaceError will be raised. 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