How do you fix looping chains of synonyms in Oracle?
ORA-01775: looping chain of synonyms – Basically means that you created a synonym that points to another object in a circle. In order to fix the above problem you need to have one of the synonyms in the chain point to an object like below. SQL> drop synonym s3; Synonym dropped.
How can I see all synonyms in Oracle?
To get names of all synonyms from Oracle database or from an specific table you can use: USER_SYNONYMS, ALL_SYNONYMS, DBA_SYNONYMS, USER_OBJECTS. Privileges may be required to query certain tables or views.
How do I drop a private synonym in Oracle?
To drop a private synonym, either the synonym must be in your own schema or you must have the DROP ANY SYNONYM system privilege. To drop a PUBLIC synonym, you must have the DROP PUBLIC SYNONYM system privilege. You must specify PUBLIC to drop a public synonym.
Why synonym is used in Oracle?
A synonym is an alternative name for objects such as tables, views, sequences, stored procedures, and other database objects. You generally use synonyms when you are granting access to an object from another schema and you don’t want the users to have to worry about knowing which schema owns the object.
Can we rename synonym in Oracle?
You cannot rename a public synonym. Instead, drop the public synonym and then re-create the public synonym with the new name. You cannot rename a type synonym that has any dependent tables or dependent valid user-defined object types.
How do you know if public is private or synonym?
select * from all_synonyms where owner IN (‘SCHEMA_USER1′,’SCHEMA_USER2’); If you are logged in as a particular user, then this will show all the synonymns private to the user. select * from user_synonyms; If you are looking for only public synonyms, this query may be close to what you are looking for.
What is a Oracle synonym?
Synonyms are a very powerful feature of Oracle. They are auxiliary names that relate to other database objects: tables, procedures, views, etc. Synonyms can be created as PRIVATE (by default) or PUBLIC. public synonyms are available to all users in the database.