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How to write sql query within query

How are they different from subqueries and derived tables? It took me quite some time to do the proper research and learn about inline queries in SQL. Have you heard about a subquery? An inline view is a query in the FROM clause of another query. How I learnt, this makes it the same as a subquery. In other words, Oracle treats these as two separate concepts.

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SQL CASE Statement

Sometimes you may want to use the results of a query as a field in another query, or as a criterion for a query field. For example, suppose that you want to see the interval between orders for each of your products. To create a query that shows this interval, you need to compare each order date to other order dates for that product. Comparing these order dates also requires a query. You can nest this query inside of your main query by using a subquery.

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For queries using parameters - if we have to change the values of parameters, we have to go to the Connection and make the change which isn't an easy way of doing it. The click of the command button will be coded in Visual Basic to pass the values from the cells to the data connection and import the data to the spreadsheet. I have used my AdventureWorks database for this demo, select it from the drop down list and select any table.

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