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Top Union interview questions and answers for freshers and experienced
What is Union ?
Answer :
UNION is a keyword of the SQL language for combining the results of multiple SQL\'s. The UNION syntax combines the results from multiple SQL selects by eliminating duplicates. The related tag is \"UNION-All\". The UNION ALL keyword combines all the results from multiple SQL\'s without checking for uniqueness. For unions in C, C++, etc. languages, use the tag \"unions\".
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