Column - Name of the column in question. The above query shows all tables that have more than one index with the same leading column. These indexes can cause queries to use an inappropriate indexes; in other words, Oracle will use the index that was created most recently if two indexes are of equal ranking.
Some different types of gases are argon, carbon dioxide, hydrogen,  helium, oxygen, nitrogen, nitrous oxide, propane and propylene. Carbon dioxide is used for fermentation, â¦ and oxygen and nitrogen  are what makes up the Earth's atmosphere.1 person found this useful. Jan C.tmosphere contains roughly (by volume) 78.09% nitrogen, 20.95%oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases.
Each cryogenic liquid has its own specific properties but most cryogenic liquids can be placed into one of three groups: 1  Inert Gases: Inert gases do not react chemically to any great extent. 2  They do not burn or support combustion. 3  Examples of this group are nitrogen, helium, neon, argon and krypton.