I am trying to insert some rows in to a table... I am using **postgressql-7.2.jar.**

I get the following exception

> 
> org.postgresql.util.PSQLException: No results were returned by the query.  
> 
>  at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:255)
> 
> 
> 

I have already Googled and the possible reasons suggested are 

1. Use `executeUpdate()` method or `execute()` method instead of `executeQuery()` method.
2. This could possibly be because of jar problem; try other versions of postgres jars.
3. In some places they save it could be because of heap space error.

I have tried all the three solutions but none of them work...

I am not pasting the code since I have just used `statement.executeUpdate(queryString)`.
The **insert statements** load the data in to the table but still I get this error. 

Can some one help me out in this?