Is foreign key mandatory?
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How do you declare a constant?
How do you retrieve the second highest salary from a table?
Can we join more than 2 tables in sql?
What is index example?
What is a trigger ?
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What is the first action to perform a query? Suppose I have four tables and five joins and my query is getting slow day by day.
How do I create a sql database?
How many times can we commit in a loop?
Types of cursors and explanation each of them ?
using subquery how can i calculate working days in a month?
Can instead of triggers be used to fire once for each statement on a view?
What is data abstraction in sql?
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