Question

What is the purpose of a Column Alias?


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Answer 1

column alias is also calledSQL aliases . they used to give a table, or a column in a table and a  a temporary name. they are often used to make column names more readable. it only exists for the duration of the query.

Answer 2

aliasing can be used as an obfuscation technique to protect the real names of database fields. In SQL, you can alias tables and columns. A table alias is also called a correlation name. A programmer can use an aliasto temporarily assign another name to a table or column for the duration of a SELECT query.


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