What are the subsets of sql?
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How do you run a query?
Write a query to display the current date in sql?
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What is a full join?
How does cross join work in sql?
how to eliminate null values in a column i.e table vlaues 1 2 3 NULL 3 4 1 5 NULL i want output like this 1 2 3 3 4 1 5 i dnt want to use nvl is null and i dnt want replace the NULL value with any value i.e nvl(col,o);
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what is the difference between cluster and non cluster index? : Sql dba
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What is primary key and foreign key with example?
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