what is the purpose of a column alias
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In addition, 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 alias to temporarily assign another name to a table or column for the duration of a SELECT query.
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column alias is also called SQL aliases .
they used to give a table ,or a column in a table and a temporary name, they are often used to make column names more readable.
they used to give a table ,or a column in a table and a temporary name, they are often used to make column names more readable.
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