Which constraints we can use while creating database in sql?
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I have one table and column is c1 pk, c2 not null,c3 not null and 200 row in it and i add c4 column and value, how can is possible
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I want to display the employees who have joined in last two months. (It should be executed randomly means If I execute the query in March it should display Jan and Feb joined employees. Same query if i execute in Feb, 2007 it should display dec, 2006 and jan 2007 joined employees.
query to retrive the employees whose sal is greater than avg sal
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