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A set operator in SQL is a keyword that is used to combine common results from both queries into a single set. Sometimes, when working with SQL server, you have to work on multiple tables together.
SQL is designed for storing, retrieving, managing or manipulating the data inside a RDBMS. In SQL tutorial, we have covered all the basics of SQL. tinyurl.com/3uftkzd8
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Mnc Companies Interview Questions for pl sql in oracle and for sql in oracle with answers