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

You could use the EXISTS keyword to check for the existance of rows:

IF EXISTS (SELECT TOP 1 * FROM...)
BEGIN
    UPDATE....
END
ELSE
BEGIN
   INSERT...
END