People in the Blue Zones eat nuts two to four times each week. Red Wine: A daily glass of red wine is also believed to help increase longevity. Researchers believe it is because it helps combat both stress and chronic inflammation in the body.
Answer: There are a few ways to verify whether a table exists within Oracle. One way is to describe it to check if the table exists: SQL> desc mytable. Another is to select the first row to check that the table exists (hey it may have millions of rows!): SQL> select * from mytable where rownum=1; At bare minimum, you will get a response of 0 rows selected which means the table exists, but there is no data in the table. You can also check the data dictionary to see if a table exists: SQL> select table_name from user_tables where table_name='MYTABLE';
The TNSPING utility can be used to test an Oracle Service Name. To use it: 1.Open a Command Prompt (click Start, click Run, type cmd, and then click OK). 2.Type (for Oracle 7.3 or Oracle 8i and later) or (for Oracle 8.0), and then press enter. The TNS Ping Utility will result in an OK or a Connect failed message.n Oracle DBA may need to provide the correct connection information. The Oracle ODBC Test utility may be used to test an ODBC data source. To use it: 1  An Oracle Service Name (known as an Alias in versions prior to Oracle 8.0) defines the location (server name and port) and database (instance) for the connection.