A subquery is a query that is nested inside a SELECT , INSERT , UPDATE , or DELETE statement, or inside another subquery. ... A subquery can be used anywhere an expression is allowed. In this example ...

/* What is a sub-query? How does sql process a statement containing sub-query? Question: Find the employees who's salary is more than the average salary earned by all employees /* Find the average ...

Note: This example uses a Version 6 view descriptor with the Pass-Through Facility to access DBMS data. Beginning in Version 7, you can associate a libref directly with your DBMS data and use the ...

select a, sum(b) from t group by a having sum(b) =(subquery); select cs_item_sk, sum(cs_sales_price) from catalog_sales group by cs_item_sk having sum(cs_sales_price) > (select sum(cs_sales_price) ...

SQL Window functions are an advanced type of function in SQL. In this post, you will learn about what SQL window functions are and how they can be used or work. What are SQL window functions? SQL ...