What is not equal in sql?
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consider a table which contain 4 columns,ename,eno,sal and deptno, from this table i want to know ename who having maximum salary in deptno 10 and 20.
What is sql stand for?
What is ON DELETE CASCADE?
If a cursor is open, how can we find in a pl/sql block?
What is trigger and types?
Is a secondary key the same as a foreign key?
How do I view an execution plan in sql?
Why truncate is used in sql?
there are 2 variables called x and y ,x contains 1,2 and y contains 3,4 we have to swap the values from x to y and y to x with out using dummy variables and it can be done only by using a single statement ? how?
Explain what is a database?
How to fetch alternate records from a table?
What are Anti joins
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