PostgreSQL function for last inserted ID

Question

In PostgreSQL, how do I get the last id inserted into a table?

In MS SQL there is SCOPE_IDENTITY().

Please do not advise me to use something like this:

Answer 1

For the ones who need to get the all data record, you can add

returning *

to the end of your query to get the all object including the id.

Answer 2

See the below example

CREATE TABLE users (
    -- make the "id" column a primary key; this also creates
    -- a UNIQUE constraint and a b+-tree index on the column
    id    SERIAL PRIMARY KEY,
    name  TEXT,
    age   INT4
);

INSERT INTO users (name, age) VALUES ('Mozart', 20);

Then for getting last inserted id use this for table "user" seq column name "id"

SELECT currval(pg_get_serial_sequence('users', 'id'));

Answer 3

SELECT CURRVAL(pg_get_serial_sequence('my_tbl_name','id_col_name'))

You need to supply the table name and column name of course.

This will be for the current session / connection http://www.postgresql.org/docs/8.3/static/functions-sequence.html

Answer 4

See the RETURNING clause of the INSERT statement. Basically, the INSERT doubles as a query and gives you back the value that was inserted.

Answer 5

I had this issue with Java and Postgres. I fixed it by updating a new Connector-J version.

postgresql-9.2-1002.jdbc4.jar

https://jdbc.postgresql.org/download.html: Version 42.2.12

https://jdbc.postgresql.org/download/postgresql-42.2.12.jar