Difference between revisions of "Selecting Database Name"
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| − | To select the [[Oracle]] | + | To select the [[Oracle Database]] name, the most common method is: |
| − | + | <pre> | |
SELECT name FROM v$database | SELECT name FROM v$database | ||
| + | </pre> | ||
This, however, requires special permissions. The database name is part of the session context and can be selected using the following function: | This, however, requires special permissions. The database name is part of the session context and can be selected using the following function: | ||
| − | + | <pre> | |
SELECT sys_context('USERENV', 'DB_NAME') FROM dual | SELECT sys_context('USERENV', 'DB_NAME') FROM dual | ||
| + | </pre> | ||
When used as part of a larger query, this does not need to join the v$database pseudo table. | When used as part of a larger query, this does not need to join the v$database pseudo table. | ||
Revision as of 06:44, 27 May 2016
To select the Oracle Database name, the most common method is:
SELECT name FROM v$database
This, however, requires special permissions. The database name is part of the session context and can be selected using the following function:
SELECT sys_context('USERENV', 'DB_NAME') FROM dual
When used as part of a larger query, this does not need to join the v$database pseudo table.
This is particularly useful in packaged solutions like PeopleSoft.
For more hints and tips like this, see the eBook:
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