Primary key from inserted row jdbc?

Question

Is there a cross database platform way to get the primary key of the record you have just inserted?

I noted that this answer says that you can get it by Calling SELECT LAST_INSERT_ID() and I think that you can call SELECT @@IDENTITY AS 'Identity'; is there a common way to do this accross databases in jdbc?

If not how would you suggest I implement this for a piece of code that could access any of SQL Server, MySQL and Oracle?

Answer 1

Copied from my code:

pInsertOid = connection.prepareStatement(INSERT_OID_SQL, Statement.RETURN_GENERATED_KEYS); 

where pInsertOid is a prepared statement.

you can then obtain the key:

// fill in the prepared statement and pInsertOid.executeUpdate(); ResultSet rs = pInsertOid.getGeneratedKeys(); if (rs.next()) {   int newId = rs.getInt(1);   oid.setId(newId); } 

Hope this gives you a good starting point.

Answer 2

extraneon's answer, although correct, doesn't work for Oracle.

The way you do this for Oracle is:

String key[] = {"ID"}; //put the name of the primary key column  ps = con.prepareStatement(insertQuery, key); ps.executeUpdate();  rs = ps.getGeneratedKeys(); if (rs.next()) {     generatedKey = rs.getLong(1); }