Describe the meaning of keyword exists and not exists

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Reference no: EM1386820

Describe the meaning of the keyword EXISTS. Describe how any and all relate to EXISTS and NOT EXISTS. Write a query which will display names of any customers who are interested in all artists. Explain correct steps involved in changin table name, ensuring that problem will not arise in database. Illustrtae SQL statement to add integer column C1 to table T2. Suppose that C1 is NULL.

Reference no: EM1386820

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