Is a foreign key always unique?
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Is clustered index a primary key?
Is inner join same as self join?
How to count the no of records of a table without using COUNT function?
how to find the First and Last Observation from the table: Ex: OBS Name Sal Ans like: OBS Name Sal 105 E 5000--> 105 E 5000 102 B 2000 104 D 4000 103 C 3000 101 A 1000--> 104 D 4000
What is the starting oracle error number? What is meant by forward declaration in functions?
What is varchar example?
What does stand for in sql?
i need department wise top 2 employees salary.which logic i will use
What are the different types of joins in sql?
How do I view a view in sql?
What is data modelling in sql?
When sql appeared?
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