Return type for count queries

Hello,
My entity manager executes a native query for a count(*) operation to get the row count from a table. But I am confused to see that while executing I get different datatypes such BigInteger, BigDecimal etc on different runs of the same query. Why is this so?
What is the deciding factor for count queries data type??
Please help....

The whole point of a constructor is to create an object on the heap and return a reference to that memory block. In fact the call to the constructor will return a reference to the instantiated object. Thus there is no point in specifying a return type to a constructor.
If you think about the way we call the constructor then it's obvious that it's not a regular method which goes inside an object.
Hope this will do what you want :)

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