Posgresql - Error: Relation "Table_Name" Does Not Exist. How to Query Without Schema Name

Cannot simply use PostgreSQL table name ("relation does not exist")

From what I've read, this error means that you're not referencing the table name correctly. One common reason is that the table is defined with a mixed-case spelling, and you're trying to query it with all lower-case.

In other words, the following fails:

CREATE TABLE "SF_Bands" ( ... );

SELECT * FROM sf_bands; -- ERROR!

Use double-quotes to delimit identifiers so you can use the specific mixed-case spelling as the table is defined.

SELECT * FROM "SF_Bands";

Re your comment, you can add a schema to the "search_path" so that when you reference a table name without qualifying its schema, the query will match that table name by checked each schema in order. Just like PATH in the shell or include_path in PHP, etc. You can check your current schema search path:

SHOW search_path
"$user",public

You can change your schema search path:

SET search_path TO showfinder,public;

See also http://www.postgresql.org/docs/8.3/static/ddl-schemas.html

PosgreSQL - ERROR: relation "table_name" does not exist. How to query without schema name?

This command, as mentioned above, will set search path for current session

SET search_path TO schema_name,public;

However if there is need to do it for all session, just correct config file - pgsql/11/data/postgresql.conf add search path

search_path = '"$user", YOUR_SCHEMA'

Restart the DB.

Postgresql tables exists, but getting "relation does not exist" when querying

You have to include the schema if isnt a public one

SELECT *
FROM <schema>."my_table"

Or you can change your default schema

SHOW search_path;
SET search_path TO my_schema;

Check your table schema here

SELECT *
FROM information_schema.columns

enter image description here

For example if a table is on the default schema public both this will works ok

SELECT * FROM parroquias_region
SELECT * FROM public.parroquias_region

But sectors need specify the schema

SELECT * FROM map_update.sectores_point

How to fix "relation <table_name> does not exist" ERROR even when using 'IF EXISTS-THEN' pgsql block?

13.0 has known unfixed bugs. 13.4 is the latest release of 13. There is almost never a good reason to run an old minor release version. Not that that seems to be relevant here.

But what you are missing here is that at the top level, EXISTS checks to see if a SELECT returns any rows. It does not check to see if tables mentioned in the FROM list of the SELECT exist or not, it assumes they do.

You could change your query so that it queries the catalog to see if the table exists, something like:

IF EXISTS 
(SELECT 1 FROM pg_class where relname=$J$scm_repos$J$)
...

Only in Linux; org.postgresql.util.PSQLException: ERROR: relation "table_name" does not exist

In the end I was using the wrong DB name. I was using postgres as DB name. Instead it was ebdb. I don't understand how I'm allowed to connect via DBeaver or PgAdmin to connect to this postgres or how when running the app locally I was able to connect to this DB name and not when the app was deployed in AWS.

The name is mentionned in the doc: https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/java-rds.html

You can also see the name in the AWS RDS Configuration tab of you DB instance.

org.postgresql.util.PSQLException: ERROR: relation "app_user" does not exist

PostgreSQL is following the SQL standard and in that case that means that identifiers (table names, column names, etc) are forced to lowercase, except when they are quoted. So when you create a table like this:

CREATE TABLE APP_USER ...

you actually get a table app_user. You apparently did:

CREATE TABLE "APP_USER" ...

and then you get a table "APP_USER".

In Spring, you specify a regular string for the table name, in capital letters, but that gets spliced into a query to the PostgreSQL server without quotes. You can check this by reading the PostgreSQL log files: it should show the query that Spring generated followed by the error at the top of your message.

Since you have very little control over how Spring constructs queries from entities, you are better off using SQL-standard lower-case identifiers.

Java SQL "ERROR: Relation "Table_Name" does not exist"

I suspect you created the table using double quotes using e.g. "Clients" or some other combination of upper/lowercase characters and therefor the table name is case sensitive now.

What does the statement

 SELECT table_schema, table_name
FROM information_schema.tables
WHERE lower(table_name) = 'clients'

return?

If the table name that is returned is not lowercase you have to use double quotes when referring to it, something like this:

String query = "SELECT * FROM \"Clients\"";

"Relation does not exist" error, only with libpq

I am going for deduction:

 Error executing query: ERROR:  relation "users" does not exist

This kind of error is throw when the databases doesn't find the table(view, or wathelse can pass through a SELECT, he gives the name of "relation") .So your code looks fine, but a sub-set of reasons can be:

  • the table users doesn't exists. Some spelling mistake
  • you perform the query in the wrong database (where this table is not defined)
  • you perform the query in the wrong server (as above)
  • you perform the query in the wrong schema (as above)
  • The string get truncate from the sprintf.

and similar. The connection works very well since you get an answer from the database



Related Topics



Leave a reply



Submit