i need a clarification in the pypgsql... iam executing the statement like result=connection.query("Update emp set empname="Don" where empid=15") what will be result value if the empid 15 doesn't exists. vel Important Email Information :- The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. If you are not the intended addressee please contact the sender and dispose of this e-mail immediately. ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match