Get last ID on inserted row in Oracle DB [duplicate]

Answer 1

You are able to signal the auto increment columns in the prepare statement call

Example:

PreparedStatement ps = con.prepareStatement(sql, pkColumns);

After the insert of the database row:

ResultSet keys = ps.getGeneratedKeys();

Important: This only works, if the auto-increment values has been automatically set by a DB-Trigger via sequences

Answer 2

In Oracle for auto-increment values used sequences

Next value is SEQUENCE_NAME.NEXTVAL, last used SEQUENCE_NAME.CURRVAL

Answer 3

If a trigger is configured to automatically set the primary key field with the next value from a sequence, then you can modify your INSERT statement as follows:

INSERT INTO table (field1, field2, field3)
  VALUES (?, ?, ?)
  RETURNING primary_key_field INTO ?

Then, add the parameter values for the INSERT, an output parameter at the end for the primary key, and execute the query.

After the query is executed, grab the value of the output parameter. It should contain the value of the primary_key_field.

Answer 4

If I understood you properly you want to insert a record in one table T1, get PK of the inserted record and use is as a FK in another table T2. In this case Oracle returning clause is very useful, you can use it like this (I'm sorry I don't know hot to use it in Java, but you should get the idea):

declare
  fId int;
begin
  insert into T1(id) values seq1.nextval returning id into fId
end;

After the insert you'll have the created record id in the fId variable.