How do I write SQL for this scenario -
lets consider orders table in northwind database , need count of order records year 1997 , 1998 in single query how do this?
i tried thing this...
select count(o.orderid) 'count of orders 1997', count(o1.orderid) 'count of orders 1998' orders o inner join orders o1 on o.orderid = o1.orderid year(o.orderdate) = 1997 or year(o1.orderdate) = 1998 please me in this...
select count(o.orderid) 'count of years' orders o year(o.orderdate) = 1997 or year(o1.orderdate) = 1998 group year(o.orderdate)
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