oracle schema does not exist

This error message indicates that the schema you are trying to access does not exist in the Oracle database.

You can check if the schema exists by querying the ALL_USERS view:

SELECT * FROM ALL_USERS WHERE USERNAME='<schema_name>';

If the schema does not exist, you will need to create it. To create a schema in Oracle, you can use the CREATE USER statement:

CREATE USER <schema_name> IDENTIFIED BY <password>;

Note that you will need appropriate privileges to create a user/schema.

If the schema does exist and you are still receiving this error, make sure that you are connecting to the correct database and that the schema is not locked or inaccessible. You can also check the spelling and case of the schema name to ensure that it matches exactly.