Sql query calculating taxamount and taxrate based on northwind database

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Posted 20-Feb-18 17:28pm

Kurt Morrison

Updated 2-Mar-18 9:22am

RedDk

v5

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Maciej Los · Accepted Answer · 2018-02-21T00:55:00

Seems you don't understand your teacher. You have to create two User Defined Functions (UDF)[^].

Quote:

1. The TaxRate UDF provides the tax rate based on a ShipCountry and returns a FLOAT value.
If the ShipCountry starts with a letter in the range
A-J the tax rate is .04
K-P the tax rate is .03
Q-Z the tax rate is .025

2. The TaxAmount UDF provides the tax due. It takes two values, a SalesAmount and a TaxRate. The SalesAmount is of the MONEY data type and the TaxRate is of the FLOAT data type. The UDF returns a MONEY value.

Finally, you have to provide a query which uses that 2 UDF's.

Follow the link i provided to find out how to create UDF.