java - Efficient way to do batch INSERTS with JDBC

Question

In my app I need to do a lot of INSERTS. Its a Java app and I am using plain JDBC to execute the queries. The DB being Oracle. I have enabled batching though, so it saves me network latencies to execute queries. But the queries execute serially as separate INSERTs:

insert into some_table (col1, col2) values (val1, val2)
insert into some_table (col1, col2) values (val3, val4)
insert into some_table (col1, col2) values (val5, val6)

I was wondering if the following form of INSERT might be more efficient:

insert into some_table (col1, col2) values (val1, val2), (val3, val4), (val5, val6)

i.e. collapsing multiple INSERTs into one.

Any other tips for making batch INSERTs faster?

Answer 1

This is a mix of the two previous answers:

  PreparedStatement ps = c.prepareStatement("INSERT INTO employees VALUES (?, ?)");

  ps.setString(1, "John");
  ps.setString(2,"Doe");
  ps.addBatch();

  ps.clearParameters();
  ps.setString(1, "Dave");
  ps.setString(2,"Smith");
  ps.addBatch();

  ps.clearParameters();
  int[] results = ps.executeBatch();