Why Does My Database Query Fail with 'Relation Not Exists' Even Though the Table Exists?

Database Query Error: "Relation Not Exists"

In an attempt to query two database tables, a user encountered the error "relation [TABLE] does not exist." Upon inspecting the server explorer, both tables and their columns were visible under the schema name "Schema."

To resolve the issue, the initial query attempted used the following syntax:

select * from Schema.table1;

However, this resulted in the persistent error. The user speculated that the schema capitalization might be the culprit and attempted queries with quoted identifiers:

Select * from "Schema.table1";
select "ID" from "Schema.table1";

Yet, the same error persisted. Adding the schema path with "SET search_path to "Schema1"" also proved ineffective.

The solution lies in quoting each element individually:

select "ID" 
from "Schema"."table1";

This syntax ensures that the database recognizes the quoted identifiers correctly, allowing for successful query execution. More information on quoted identifiers can be found in the database documentation.

The above is the detailed content of Why Does My Database Query Fail with 'Relation Not Exists' Even Though the Table Exists?. For more information, please follow other related articles on the PHP Chinese website!