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 TABLES table provides information about tables in databases. Notes: Refer to SHOW TABLE STATUS for field descriptions. TABLE_SCHEMA and TABLE_NAME are a single field in a SHOW display, for example Table_in_db1. TABLE_TYPE should be BASE TABLE or VIEW. The TABLES table does not list TEMPORARY tables. For partitioned tables, the ENGINE column shows the name of the storage engine used by all partitions. The TABLE_ROWS column is NULL if the table is in the INFORMATION_SCHEMA database. For InnoDB tables, the row count is only a rough estimate used in SQL optimization.