Why is it so that we can have virtual constructors but we
cannot have virtual destructors?
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Answer / sachinmundhra
vptr gets initialize in constructor. So in that case we
cannot have virtual constructor.
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You attempt to query the data base with this command: SELECT name, salary FROM employee WHERE salary=(SELECT salary FROM employee WHERE last name='Wagner' OR dept no=233) Choose most appropriate option from the following: 1)Sub-queries are not allowed in the where clause. 2)a multiple row sub-query used with a single row comparison operator. 3)a single row query is used with a multiple row comparison operator.
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