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 Oracle Create Table Tool allows users to visually create tables. After entering in the table name and the number of columns, the tool allows the user to enter the following information for each column of the table: Column Name. Column Type (for example, Integer, Char, Varchar, etc.).