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Some of the uses of append query are as follows
? You will save time by appending data to an existing table rather than manual update.
? Appending files based on particular criteria is possible.
? If your destination file doesn't have columns and rows you can add certain columns and rows therefore ignoring the rest of them.
? Append can save time and labor when dealing with large database updation.
What is a demultiplexer? Ans: Demultiplexer: This is a logic circuit which accepts one data input and distributes this over some outputs. This has one data input, m selec
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