June 2002
Beginner to intermediate
832 pages
19h 43m
English
Content preview from Alison Balter's Mastering Access 2002 Enterprise Development
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Aggregate Functions
You use aggregate functions to summarize table data. The aggregate functions available include COUNT, COUNT_BIG, SUM, AVG, MIN, and MAX. The following sections discuss each of these aggregate functions. You can find additional aggregate functions in Books On-line (online help for SQL Server).
COUNT
You use the COUNT function to count the number of rows in a table. It looks like this:
SELECT COUNT(*) AS CountOfCustomers FROM Customers
The example counts the number of rows in the Customers table (see Figure 6.10).
Figure 6.10. A SELECT statement that counts the number of rows in the Customers table.
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