Write a query to create a view to getting a count of how many customers we have at each level of a grade.
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DBMS question of 2.3 worksheet if anyone knows please help and explain it.
Consider the graph given below. State all the simple paths from A to D, B to D, and C to D. Also, find out the in-degree and out-degree of each node. Is there any source or sink in the graph?
Write a program in PL/SQL to FETCH multiple records and more than one columns from the same table.