An index is an optional structure associated with a table to have direct access to rows, which can be created to increase the performance of data retrieval. Index can be created on one or more columns of a table.
A bottle is full of dettol. One-third of it is taken out and then an equal amount of water is poured into the bottle to fill it. This operation is done four times. Find the final ratio of dettol and water in the bottle.
It is an investment strategy that involves the buying of money market instruments or currencies in anticipation of a price rise or a future increase in demand. Buying forward allows an investor to take advantage of future and potential profits by buying now at alower price, and selling when prices rise.
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