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.
There are six noble gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn). Noble gases have completely filled orbitals / energy levels. They generâ¦ally have 8 valence electrons (helium has only 2) and have stable electronic configuration.