The service name is a string that is the global database name—a name that is comprised of the database name and domain name, for example: sales.us.acme.com.
To find the service name and display name of each service on your system, type Get-Service . The service names appear in the Name column, and the display names appear in the DisplayName column. When you sort in ascending order by the Status property's value, Stopped services appear before Running services.
A SID is a unique name that uniquely identifies the database instance where as a service name is the Database TNS Alias that is given when users remotely connect to the database. The Service name is recorded in the tnsnames.
The location path of your Oracle Home Registry is as follows:
- HKEY_LOCAL_MACHINE >> SOFTWARE >> ORACLE>>
- Oracle_SID will show your SID.
- Oracle_Home will show the location of your DB Home.
- Oracle_BUNDLE_NAME will show the edition of your Oracle Database.
- Oracle_SVCUSER will show the windows user for your Oracle Database.
Open a Command Prompt (click Start, click Run, type cmd, and then click OK). 2. Type tnsping <service name> (for Oracle 7.3 or Oracle 8i and later) or tnsping80 <service name> (for Oracle 8.0), and then press enter. The TNS Ping Utility will result in an "OK" or a "Connect failed" message.
To connect to Oracle Database from SQL*Plus:
- If you are on a Windows system, display a Windows command prompt.
- At the command prompt, type sqlplus and press the key Enter. SQL*Plus starts and prompts you for your user name.
- Type your user name and press the key Enter.
- Type your password and press the key Enter.
Here are three ways to find out your Oracle database name.
- Through V$DATABASE. SQL> select name from V$ database ;
- Through GLOBAL_NAME. GLOBAL_NAME has the default value of db_name + db_domain.
- Through dbms_utility. get_parameter_value.
- Summary.
Oracle SIDs vs. Oracle SERVICE NAMES
Oracle SID is the unique name that uniquely identifies your instance/database, whereas the Service name is the TNS alias that you give when you remotely connect to your database, and this Service name is recorded in tnsnames.The easiest way of finding the database name is: select * from global_name; This view is granted to PUBLIC, so anybody can query it. Here first one "ORCL" is database name,may be your system "XE" and other what was given on oracle downloading time.
To
get database information and
name query schemata table: select * from information_schema.
To get a list of all your databases, try this:
- SHOW DATABASES;
- +--------------------+
- | Database |
- +--------------------+
- | classicmodels |
- | information_schema |
- | mysql |
- | performance_schema |
5 Answers
- Open your SQL command line and type the following: SQL> connect / as sysdba.
- Once connected,you can enter the following query to get details of username and password:
- This will list down the usernames,but passwords would not be visible.
To add an Oracle Cloud connection:
- Run Oracle SQL Developer locally. The Oracle SQL Developer home page displays.
- Under Connections, right click Connections.
- Select New Connection.
- On the New/Select Database Connection dialog, make the following entries:
- Click Test.
- Click Connect.
- Open the new connection.
Create a blank database
- On the File tab, click New, and then click Blank Database.
- Type a file name in the File Name box.
- Click Create.
- Begin typing to add data, or you can paste data from another source, as described in the section Copy data from another source into an Access table.
Perform the following steps:
- If you installed the SQL Developer icon on your desktop, click the icon to start your SQL Developer and move to Step 4.
- On the desktop, you will find an icon named Shortcut to sqldeveloper.exe (in Windows) or SQL Developer4.
- Your Oracle SQL Developer opens.
List Databases in Oracle – Querychat
- In Oracle, the v$database and dba_users views can be used to get a list of the databases and schemas within an Oracle server.
- In other databases such as MySQL, we normally use the command show databases; to get a list of the databases.
Username: Whatever user you have created or SYS or SYSTEM if you have not created a user yet. Password: The password for your user or the default password you entered for SYS and SYSTEM. Hostname: 127.0. 0.1 his is only the hostname if your are running SQL Developer on the same machine where your XE is installed.
A TNS (Transparent Network Substrate) name is the name of the entry in tnsnames.ora file which is kept in $ORACLE_HOME/network/admin. This file contains the information which is used by the system to connect to oracle database. Using this a client can fetch server associated information transparently.
Database Service Names and SID. A SID is a unique name that uniquely identifies the database instance where as a service name is the Database TNS Alias that is given when users remotely connect to the database.
The Oracle System ID (SID) is used to uniquely identify a particular database on a system. For this reason, one cannot have more than one database with the same SID on a computer system. When using RAC, all instances belonging to the same database must have unique SID's.
A SID is a unique name that uniquely identifies the database instance where as a service name is the Database TNS Alias that is given when users remotely connect to the database. The Service name is recorded in the tnsnames.
Creating a Service for a PDB
We can use pacakge#dbms_service to create another service for pdb. Step 2. Create service for current pdb using name and new network service name. Do forget thie step!!!How To Find Out The SID & DB Home In Oracle Database 18c
- HKEY_LOCAL_MACHINE >> SOFTWARE >> ORACLE>>
- Oracle_SID will show your SID.
- Oracle_Home will show the location of your DB Home.
- Oracle_BUNDLE_NAME will show the edition of your Oracle Database.
- Oracle_SVCUSER will show the windows user for your Oracle Database.
An Oracle database consists of one or more logical storage units called tablespaces, which collectively store all of the database's data. Each tablespace in an Oracle database consists of one or more files called datafiles, which are physical structures that conform to the operating system in which Oracle is running.
Answer: You can retrieve the instance name using the sys_context function.
Open a Command Prompt (click Start, click Run, type cmd, and then click OK). 2. Type tnsping <service name> (for Oracle 7.3 or Oracle 8i and later) or tnsping80 <service name> (for Oracle 8.0), and then press enter. The TNS Ping Utility will result in an "OK" or a "Connect failed" message.
Typically, a tnsnames. ora file is installed when you install an Oracle database. By default, the tnsnames. ora file is located in the ORACLE_HOME etworkadmin directory on Windows and the $ORACLE_HOME/network/admin directory on Linux/UNIX.
Login to the server as an administrator user. Open the Oracle_home etworkadmintnsnames. ora file for editing. If the file does not exist create an empty text document named tnsnames.
A Transparent Network Substrate (TNS) alias is useful if more than one machine connects to the same database. A tnsnames. ora file maps TNS names to connect descriptors (usually ADDRESS and CONNECT_DATA). The TNS name becomes a, most likely shorter and more readable, alias for the somewhat cumbersome service name.
To configure an Oracle Data Source Name (DSN), you must have specified a TNS Service Name for the database in which your workspace repositories will be stored. This is the TNS Service Name you entered when you installed the repository client. Double-click Data Sources (ODBC).
Transparent Network Substrate (TNS) is the network protocol used by Oracle for connectivity to Oracle Databases. The Oracle Database Listener is the server process that provides basic network connectivity for clients, application servers, and other databases to an Oracle database.
