Insert data and if already inserted then update in sql

Question

I simply want to insert the data to a SQL database table and if there is some data inserted already then I want to update that data. How can I do this using Java. Kindly help me

Answer 1

Set any field as the unique identity. For an example consider that employee details has to be entered in the table name **EmployeeDetails.**in this case employee_id can be considered as unique.

use SELECT query select * from EmployeeDetails where employee_id= "the unique keyvalue"; if the resultset is not empty then use UPDATE query to update the fields.

update EmployeeDetails set Employee_id=?,Full_name=?, Designation=?, Email_id=?, Password=? where Employee_id='" + id + "'"; If the resultset is empty then use the INSERT query to insert the values to the table

Insert into EmployeeDetails values(...)