JDBC UPDATE With preparedStatement causing java.sql.SQLException: Parameter index out of range (3 > number of parameters, which is 2) [duplicate]

Answer 1

This ps.setInt(3, 1000); must be ps.setInt(2, 1000); because you only have to placeholder.

Is it mandatory for to put placeholder('?') for each column of the table?

The placeholder is for a parameter not for a column!

Answer 2

you have not more than two question marks(placeholder) in your statement. As a result of this, this must fail:

ps.setInt(3, 1000);

change it to

ps.setInt(2, 1000);