How are objects stored in multiple schemas in Oracle?

How are objects stored in multiple schemas in Oracle?

Some objects are stored in multiple tablespaces. You might mean “schema” or you might mean “database” where a schema in Oracle is most similar to a database in SQL Server. assuming you have privileges on table_name in the schema_name schema.

Can you use both databases in the same server?

PS. Im using Oracle and both databases are in the same server. You want to use a Database Link (DBLink). http://www.stanford.edu/dept/itss/docs/oracle/10g/server.101/b10759/statements_5005.htm @conn_user on the end of a procedure or table name will tell the pl/sql engine to query the db link specified for that info.

Can a database link be dropped by another user?

In some situations (on a running database where users connect to the database) you cannot temporarily change the password and you’re stuck. There are however some tricks you can use to make Oracle execute the CREATE DATABASE LINK or DROP DATABASE LINK as another user.

Where to find ODBC driver for Oracle Database?

Any odbc complient database can be connect to and Oracle database providing you can find a working odbc driver for out platform. .odbc.ini and $ORACLE_HOME/hs/admin are your configuration locations. Thanks for contributing an answer to Database Administrators Stack Exchange!

How to query two tables from different schemas?

Failing those, you’re getting into really ugly territory but you might be able to make something work. For example: Open up both from a tool that can read from multiple connections at once and do the join there. Access. Toad for Data Analysis, whatever.

How to avoid specifying the table owner schema?

In addition to grants, you can try creating synonyms. It will avoid the need for specifying the table owner schema every time. Depending on the schema/account you are using to connect to the database, I would suspect you are missing a grant to the account you are using to connect to the database.

How to refer to objects in PCT schema?

Once that is done, you should be able to refer to the objects in the PCT schema using the syntax pct.pi_int as you demonstrated initially in your question. The bracket syntax approach will not work. In addition to grants, you can try creating synonyms.

How to improve query performance in Oracle BI server?

The following list summarizes methods that you can use to improve query performance: Tuning and indexing underlying databases: For Oracle BI Server database queries to return quickly, the underlying databases must be configured, tuned, and indexed correctly. Note that different database products have different tuning considerations.

When to use cache in Oracle Fusion Middleware?

Using cache, the cost of database processing must be paid only once for a query, not every time the query is run. See also the following Oracle Fusion Middleware resources on performance tuning for your system:

How is query cache used in Oracle BI?

It also describes how to manage and use the query cache, a feature that enables the Oracle BI Server to save the results of a query in cache files and then reuse those results later when a similar query is requested. Using cache, the cost of database processing must be paid only once for a query, not every time the query is run.

Can you connect to Oracle Database as user HR?

By default, when the HR schema is installed, the HR account is locked and its password is expired. You can connect to Oracle Database as the user HR only if the HR account is unlocked.

How to change your password in Oracle Database?

Using SQL*Plus, connect to Oracle Database as a user with the ALTER USER system privilege. At the SQL> prompt, unlock the HR account and reset its password: ALTER USER HR ACCOUNT UNLOCK IDENTIFIED BY password; The system responds: User altered. The HR account is unlocked and its password is password.

How to connect to Oracle database from SQL Developer?

To connect to Oracle Database from SQL Developer: Start SQL Developer. In the Connections frame, click the icon New Connection. In the New/Select Database Connection window: Type the appropriate values in the fields Connection Name, Username, and Password.