MySQL :: MySQL Connector/Python Developer Guide :: 10.5.14 MySQLCursor.fetchwarnings() Method (original) (raw)

10.5.14 MySQLCursor.fetchwarnings() Method

Syntax:

tuples = cursor.fetchwarnings()

This method returns a list of tuples containing warnings generated by the previously executed operation. To set whether to fetch warnings, use the connection'sget_warnings property.

The following example shows aSELECT statement that generates a warning:

>>> cnx.get_warnings = True
>>> cursor.execute("SELECT 'a'+1")
>>> cursor.fetchall()
[(1.0,)]
>>> cursor.fetchwarnings()
[(u'Warning', 1292, u"Truncated incorrect DOUBLE value: 'a'")]

When warnings are generated, it is possible to raise errors instead, using the connection'sraise_on_warnings property.