TOP SQL Interview Questions for Beginner in Logical QUERY ORDER (Hindi)
TOP SQL Interview Questions for Beginner in Logical QUERY ORDER
In this video we are going to explore about some fundamental questions on logical order of SQL query
Q: What is the difference between the WHERE and HAVING clauses?
Q: Why are you not allowed to refer to a column alias defined by the SELECT clause in the WHERE clause?
Q: Why are you not allowed to refer to a column alias defined by the SELECT clause in the same SELECT clause?
If you have more questions please put in comment we will answer them and make a video on those.
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