MySQL client flags. buffered: False: Whether cursor objects fetch the results immediately after executing queries. share | improve this question | follow | edited Apr 27 '17 at 18:24. (It works with MySQLdb because that driver is buffering by default.) When you will use the same cursor again, it will complain that you still have n-1 results (where n is the result set amount) waiting to be fetched. If raw is True, the cursor skips the conversion from MySQL data types to Python types when fetching rows. Full disclosure, I am a mysql dev, not a python dev. python mysql mysql-python. However when you use a buffered cursor the connector fetches ALL rows behind the scenes and you just take one from the connector so the mysql db won't complain. Hope it helps. The MySQLCursor of mysql-connector-python (and similar libraries) is used to execute statements to communicate with the MySQL database. Fantasic for small to mid-sized resultsets. See Section 7.1, “Connector/Python Connection Arguments”. (A buffered cursor fetches and buffers the rows of a result set after executing a query; see Section 10.6.1, “cursor.MySQLCursorBuffered Class”.) This means the data is not fetched automatically and you need to 'consume' all rows. This way, it is unnecessary to fetch the rows in a new variables. MySQL Connector/Python offers two ways to turn buffering on or off. You can use the buffered option to read result immediately.. As mentioned in the comments, it's best to split the statements and execute them separately. Set buffering per connection. All rows are read immediately, true. ssl_cert Using MySQL Connector/Python, the Unread results found might happen when you use the connection object in different places without reading the result. Ask Question Asked 3 years, 8 months ago. Using the methods of it you can execute SQL statements, fetch data from the result sets, call procedures. ssl_ca: File containing the SSL certificate authority. For information about the implications of buffering, see Section 10.6.1, “cursor.MySQLCursorBuffered Class”. consume_results: False: Whether to automatically read result sets. If I run with buffered cursor, I can see that _rows property of cursor contains my data, but fetchall() returns empty array. Using Connector/Python you have to use the buffered-argument set to True for cursor … We have used my_cursor as buffered cursor. Instead, the cursor can be used as an iterator. We can use such cursor as iterator. Python MySQL cursor fails to fetch rows. cursor = conn.cursor(buffered=True,dictionary=true) in order to abandon a resultset mid-stream. See the Python Manual Page MySQLConnection.cursor() Method and cursor.MySQLCursorBuffered Class. MySQL Connector/Python is, by default, non-buffering. / MySQL Connector/Python Developer Guide / Connector/Python Tutorials / Tutorial: Raise Employee's Salary Using a Buffered Cursor 6.6.1 Tutorial: Raise Employee's Salary Using a Buffered Cursor The following example script gives a long-overdue 15% raise effective tomorrow to all employees who joined in the year 2000 and are still with the company. raw: False: Whether MySQL results are returned as is, rather than converted to Python types. Either per connection or per cursor using the buffered argument set to True. It's not something one can go around. If you want all the cursors for a particular connection to be buffered, you can turn it on when connecting to MySQL setting the buffered-argument to True. To iterate through the selected employees, we use buffered cursors. my_cursor = my_connect.cursor(buffered=True) This type cursor fetches rows and buffers them after getting output from MySQL database. 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