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Which Of The Following Is Not A Valid Type Of Join
When it comes to SQL, there are different types of joins that can be used to combine data from two or more tables. These include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN. However, not all of these are valid types of joins.
The correct answer is **INNER JOIN**. This is because INNER JOIN returns only the records that have matching values in both tables. It does not return any records that do not have a match in the other table.
On the other hand, LEFT JOIN (OUTER) returns all records from the left table and the matched records from the right table. RIGHT JOIN (OUTER) returns all records from the right table and the matched records from the left table. FULL OUTER JOIN returns all records when there is a match in either left (table1) or right (table2) table records.
It is important to note that there is no such join called as full join, although there is a full outer join .
Here are some websites that discuss Which Of The Following Is Not A Valid Type Of Join:
– https://www.toppr.com/ask/question/which-of-the-following-is-not-a-type-of-join-in-sql/
– https://www.sanfoundry.com/rdbms-questions-answers-join-expressions/
– https://stackoverflow.com/questions/17946221/sql-join-and-different-types-of-joins
– https://learnsql.com/blog/sql-joins-types-explained/
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