Thread: What is the right syntax for retrieving the last_insert_id() inPostgresql ?

What is the right syntax for retrieving the last_insert_id() inPostgresql ?

From

Karen Goh

Date:

01 March 2020, 13:17:48

Hi,

I hope I am posting on the right forum.  I googled but I can't find any solution pertaining to my problem.

Could someone know what is the syntext for last_insert_id() in Postgresql for me to insert into my sql execute query?

public int getTutorById() {
        openConnection();
        int tutor_id = 0;
        try {
            Statement stmt3 = connection.createStatement();
            ResultSet rs = stmt3.executeQuery("SELECT last_insert_id() from xtutor");
            {
                while (rs.next()) {
                    tutor_id = rs.getInt(1);                            
                }
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return tutor_id;
    }

org.postgresql.util.PSQLException: ERROR: function last_insert_id() does not exist
  Hint: No function matches the given name and argument types. You might need to add explicit type casts.
  Position: 8
    at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2440)
    at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2183)
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:308)
    at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
    at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
    at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:307)
    at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:293)
    at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:270)
    at org.postgresql.jdbc.PgStatement.executeQuery(PgStatement.java:224)
    at daoMySql.tutorDAOImpl.getTutorById(tutorDAOImpl.java:202)
    at daoMySql.tutorDAOImpl.getAlltutors(tutorDAOImpl.java:161)
    at business.manager.getAlltutors(manager.java:99)

The generated id is successfully generated by JDBC.

The errors when I tested in out using PGAdmin4 is 

ERROR:  function last_insert_id() does not exist
LINE 1: SELECT last_insert_id() from xtutor;
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
SQL state: 42883
Character: 8

Postgresql 11, Windows 11

Thanks.

Re: What is the right syntax for retrieving the last_insert_id() inPostgresql ?

From

Pavel Stehule

Date:

01 March 2020, 13:26:05

ne 1. 3. 2020 v 11:18 odesílatel Karen Goh <karenworld@yahoo.com> napsal:

Hi,

I hope I am posting on the right forum. I googled but I can't find any solution pertaining to my problem.

Could someone know what is the syntext for last_insert_id() in Postgresql for me to insert into my sql execute query?

Postgres has not last_insert_id function. Maybe you think "lastval" function

https://www.postgresql.org/docs/current/functions-sequence.html

Regards

Pavel

public int getTutorById() {
openConnection();
int tutor_id = 0;
try {
Statement stmt3 = connection.createStatement();
ResultSet rs = stmt3.executeQuery("SELECT last_insert_id() from xtutor");
{
while (rs.next()) {
tutor_id = rs.getInt(1);
}
}
} catch (SQLException e) {
e.printStackTrace();
}
return tutor_id;
}

org.postgresql.util.PSQLException: ERROR: function last_insert_id() does not exist
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: 8
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2440)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2183)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:308)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:307)
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:293)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:270)
at org.postgresql.jdbc.PgStatement.executeQuery(PgStatement.java:224)
at daoMySql.tutorDAOImpl.getTutorById(tutorDAOImpl.java:202)
at daoMySql.tutorDAOImpl.getAlltutors(tutorDAOImpl.java:161)
at business.manager.getAlltutors(manager.java:99)

The generated id is successfully generated by JDBC.

The errors when I tested in out using PGAdmin4 is

ERROR: function last_insert_id() does not exist
LINE 1: SELECT last_insert_id() from xtutor;
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
SQL state: 42883
Character: 8

Postgresql 11, Windows 11

Thanks.

Re: What is the right syntax for retrieving the last_insert_id() inPostgresql ?

From

agharta agharta

Date:

01 March 2020, 14:16:59

Jdbc provides getGeneratedKeys function.

java.sql.ResultSet generatedKeys = pstmt.getGeneratedKeys();
if (generatedKeys.next()) {
primkey = generatedKeys.getInt(1);
}

https://www.xyzws.com/javafaq/how-to-retrieve-automatically-generated-keys-in-jdbc/173

Else, sql insert into returning may help You.

https://www.postgresql.org/docs/11/sql-insert.html

Cheers,

Agharta

Il dom 1 mar 2020, 11:26 Pavel Stehule <pavel.stehule@gmail.com> ha scritto:

ne 1. 3. 2020 v 11:18 odesílatel Karen Goh <karenworld@yahoo.com> napsal:
Hi,

I hope I am posting on the right forum. I googled but I can't find any solution pertaining to my problem.

Could someone know what is the syntext for last_insert_id() in Postgresql for me to insert into my sql execute query?

Postgres has not last_insert_id function. Maybe you think "lastval" function

https://www.postgresql.org/docs/current/functions-sequence.html

Regards

Pavel

public int getTutorById() {
openConnection();
int tutor_id = 0;
try {
Statement stmt3 = connection.createStatement();
ResultSet rs = stmt3.executeQuery("SELECT last_insert_id() from xtutor");
{
while (rs.next()) {
tutor_id = rs.getInt(1);
}
}
} catch (SQLException e) {
e.printStackTrace();
}
return tutor_id;
}

org.postgresql.util.PSQLException: ERROR: function last_insert_id() does not exist
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: 8
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2440)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2183)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:308)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:307)
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:293)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:270)
at org.postgresql.jdbc.PgStatement.executeQuery(PgStatement.java:224)
at daoMySql.tutorDAOImpl.getTutorById(tutorDAOImpl.java:202)
at daoMySql.tutorDAOImpl.getAlltutors(tutorDAOImpl.java:161)
at business.manager.getAlltutors(manager.java:99)

The generated id is successfully generated by JDBC.

The errors when I tested in out using PGAdmin4 is

ERROR: function last_insert_id() does not exist
LINE 1: SELECT last_insert_id() from xtutor;
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
SQL state: 42883
Character: 8

Postgresql 11, Windows 11

Thanks.

Re: What is the right syntax for retrieving the last_insert_id() inPostgresql ?

From

Karen Goh

Date:

03 March 2020, 18:50:08

Hi Pavel,

Using this as reference and your link :

https://dba.stackexchange.com/questions/3281/how-do-i-use-currval-in-postgresql-to-get-the-last-inserted-id

I tried :

select lastval('t_id') from table_tutor;

but it is not working.

Is there any tutorial out there that teaches the exact syntax ?

Thanks & regards,
Karen

On Sunday, March 1, 2020, 06:27:00 PM GMT+8, Pavel Stehule <pavel.stehule@gmail.com> wrote:

ne 1. 3. 2020 v 11:18 odesílatel Karen Goh <karenworld@yahoo.com> napsal:

Hi,

I hope I am posting on the right forum. I googled but I can't find any solution pertaining to my problem.

Could someone know what is the syntext for last_insert_id() in Postgresql for me to insert into my sql execute query?

Postgres has not last_insert_id function. Maybe you think "lastval" function

https://www.postgresql.org/docs/current/functions-sequence.html

Regards

Pavel

public int getTutorById() {
openConnection();
int tutor_id = 0;
try {
Statement stmt3 = connection.createStatement();
ResultSet rs = stmt3.executeQuery("SELECT last_insert_id() from xtutor");
{
while (rs.next()) {
tutor_id = rs.getInt(1);
}
}
} catch (SQLException e) {
e.printStackTrace();
}
return tutor_id;
}

org.postgresql.util.PSQLException: ERROR: function last_insert_id() does not exist
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: 8
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2440)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2183)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:308)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:307)
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:293)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:270)
at org.postgresql.jdbc.PgStatement.executeQuery(PgStatement.java:224)
at daoMySql.tutorDAOImpl.getTutorById(tutorDAOImpl.java:202)
at daoMySql.tutorDAOImpl.getAlltutors(tutorDAOImpl.java:161)
at business.manager.getAlltutors(manager.java:99)

The generated id is successfully generated by JDBC.

The errors when I tested in out using PGAdmin4 is

ERROR: function last_insert_id() does not exist
LINE 1: SELECT last_insert_id() from xtutor;
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
SQL state: 42883
Character: 8

Postgresql 11, Windows 11

Thanks.

Re: What is the right syntax for retrieving the last_insert_id() inPostgresql ?

From

john

Date:

03 March 2020, 19:04:44

currval('id_seq') where id_seq is the sequence you are using for the key (t_id). That assumes you are using a sequence.
Johnf

On 3/3/20 7:50 AM, Karen Goh wrote:

Hi Pavel,

Using this as reference and your link :

https://dba.stackexchange.com/questions/3281/how-do-i-use-currval-in-postgresql-to-get-the-last-inserted-id

I tried :

select lastval('t_id') from table_tutor;

but it is not working.

Is there any tutorial out there that teaches the exact syntax ?

Thanks & regards,
Karen
On Sunday, March 1, 2020, 06:27:00 PM GMT+8, Pavel Stehule <pavel.stehule@gmail.com> wrote:

ne 1. 3. 2020 v 11:18 odesílatel Karen Goh <karenworld@yahoo.com> napsal:
Hi,

I hope I am posting on the right forum. I googled but I can't find any solution pertaining to my problem.

Could someone know what is the syntext for last_insert_id() in Postgresql for me to insert into my sql execute query?

Postgres has not last_insert_id function. Maybe you think "lastval" function

https://www.postgresql.org/docs/current/functions-sequence.html

Regards

Pavel

public int getTutorById() {
openConnection();
int tutor_id = 0;
try {
Statement stmt3 = connection.createStatement();
ResultSet rs = stmt3.executeQuery("SELECT last_insert_id() from xtutor");
{
while (rs.next()) {
tutor_id = rs.getInt(1);
}
}
} catch (SQLException e) {
e.printStackTrace();
}
return tutor_id;
}

org.postgresql.util.PSQLException: ERROR: function last_insert_id() does not exist
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: 8
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2440)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2183)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:308)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:307)
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:293)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:270)
at org.postgresql.jdbc.PgStatement.executeQuery(PgStatement.java:224)
at daoMySql.tutorDAOImpl.getTutorById(tutorDAOImpl.java:202)
at daoMySql.tutorDAOImpl.getAlltutors(tutorDAOImpl.java:161)
at business.manager.getAlltutors(manager.java:99)

The generated id is successfully generated by JDBC.

The errors when I tested in out using PGAdmin4 is

ERROR: function last_insert_id() does not exist
LINE 1: SELECT last_insert_id() from xtutor;
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
SQL state: 42883
Character: 8

Postgresql 11, Windows 11

Thanks.

Re: What is the right syntax for retrieving the last_insert_id() inPostgresql ?

From

Pavel Stehule

Date:

03 March 2020, 19:26:24

út 3. 3. 2020 v 16:50 odesílatel Karen Goh <karenworld@yahoo.com> napsal:

Hi Pavel,

Using this as reference and your link :

https://dba.stackexchange.com/questions/3281/how-do-i-use-currval-in-postgresql-to-get-the-last-inserted-id

I tried :

select lastval('t_id') from table_tutor;

but it is not working.

Is there any tutorial out there that teaches the exact syntax ?

lastval has not any parameter .. so you should to use SELECT lastval();

Thanks & regards,
Karen
On Sunday, March 1, 2020, 06:27:00 PM GMT+8, Pavel Stehule <pavel.stehule@gmail.com> wrote:

ne 1. 3. 2020 v 11:18 odesílatel Karen Goh <karenworld@yahoo.com> napsal:
Hi,

I hope I am posting on the right forum. I googled but I can't find any solution pertaining to my problem.

Could someone know what is the syntext for last_insert_id() in Postgresql for me to insert into my sql execute query?

Postgres has not last_insert_id function. Maybe you think "lastval" function

https://www.postgresql.org/docs/current/functions-sequence.html

Regards

Pavel

public int getTutorById() {
openConnection();
int tutor_id = 0;
try {
Statement stmt3 = connection.createStatement();
ResultSet rs = stmt3.executeQuery("SELECT last_insert_id() from xtutor");
{
while (rs.next()) {
tutor_id = rs.getInt(1);
}
}
} catch (SQLException e) {
e.printStackTrace();
}
return tutor_id;
}

org.postgresql.util.PSQLException: ERROR: function last_insert_id() does not exist
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: 8
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2440)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2183)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:308)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:307)
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:293)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:270)
at org.postgresql.jdbc.PgStatement.executeQuery(PgStatement.java:224)
at daoMySql.tutorDAOImpl.getTutorById(tutorDAOImpl.java:202)
at daoMySql.tutorDAOImpl.getAlltutors(tutorDAOImpl.java:161)
at business.manager.getAlltutors(manager.java:99)

The generated id is successfully generated by JDBC.

The errors when I tested in out using PGAdmin4 is

ERROR: function last_insert_id() does not exist
LINE 1: SELECT last_insert_id() from xtutor;
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
SQL state: 42883
Character: 8

Postgresql 11, Windows 11

Thanks.

Re: What is the right syntax for retrieving the last_insert_id() inPostgresql ?

From

Sándor Daku

Date:

03 March 2020, 19:36:07

On Tue, 3 Mar 2020 at 16:50, Karen Goh <karenworld@yahoo.com> wrote:

Hi Pavel,

Using this as reference and your link :

https://dba.stackexchange.com/questions/3281/how-do-i-use-currval-in-postgresql-to-get-the-last-inserted-id

I tried :

select lastval('t_id') from table_tutor;

but it is not working.

Is there any tutorial out there that teaches the exact syntax ?

Thanks & regards,
Karen
On Sunday, March 1, 2020, 06:27:00 PM GMT+8, Pavel Stehule <pavel.stehule@gmail.com> wrote:

ne 1. 3. 2020 v 11:18 odesílatel Karen Goh <karenworld@yahoo.com> napsal:
Hi,

I hope I am posting on the right forum. I googled but I can't find any solution pertaining to my problem.

Could someone know what is the syntext for last_insert_id() in Postgresql for me to insert into my sql execute query?

Postgres has not last_insert_id function. Maybe you think "lastval" function

https://www.postgresql.org/docs/current/functions-sequence.html

Regards

Pavel

public int getTutorById() {
openConnection();
int tutor_id = 0;
try {
Statement stmt3 = connection.createStatement();
ResultSet rs = stmt3.executeQuery("SELECT last_insert_id() from xtutor");
{
while (rs.next()) {
tutor_id = rs.getInt(1);
}
}
} catch (SQLException e) {
e.printStackTrace();
}
return tutor_id;
}

org.postgresql.util.PSQLException: ERROR: function last_insert_id() does not exist
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: 8
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2440)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2183)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:308)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:307)
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:293)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:270)
at org.postgresql.jdbc.PgStatement.executeQuery(PgStatement.java:224)
at daoMySql.tutorDAOImpl.getTutorById(tutorDAOImpl.java:202)
at daoMySql.tutorDAOImpl.getAlltutors(tutorDAOImpl.java:161)
at business.manager.getAlltutors(manager.java:99)

The generated id is successfully generated by JDBC.

The errors when I tested in out using PGAdmin4 is

ERROR: function last_insert_id() does not exist
LINE 1: SELECT last_insert_id() from xtutor;
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
SQL state: 42883
Character: 8

Postgresql 11, Windows 11

Thanks.

Hi,

Expanding a bit on John's answer, if you are using a serial or bigserial field Postgres makes a sequence for that field.

For example:

create table xtutor(

t_id serial,

...

results a sequence named xtutor_t_id_seq(The schema is tablename_fieldname_seq)

And when you check the table structure with \d xtutor you'll see something like this:

Column | Type | Collation | Nullable | Default

t_id | integer | | not null | nextval('xtutor_t_id_seq'::regclass)

You can query the sequence as a table:

SELECT * FROM xtutor_t_id_seq;

or get the next value for a sequence(This advances the sequence as well):

SELECT nextval('xtutor_t_id_seq');

However...

Your example code looks like you are looking for the id of the most recently inserted tutor in which case a better solution would be replacing your select with this:

SELECT max(t_id) from xtutor;

Regards,

Sándor