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听力原文： The term "satellite city" is used to describe the relationship between a large city and neighboring smaller cities and towns that are economically dependent upon it. Satellite cities may be collection and distribution points in the commercial linkages of a trading metropolis, or they may be manufacturing or mining centres existing with one-industry economies as the creatures of some nearby centre. This latter form. is what is generally meant when one uses the term "satellite city". Taken in this sense, nineteenth century Chicopee and Lowell, Massachusetts, were satellites of Boston. Both were mill towns created by Boston investors to serve the economy of that New England metropolis. Located on cheap land along water power sites in the midst of a farming region that could supply sufficient labor, they were satellites in the fullest sense of the term. Pullman, Illinois, and Gary, Indiana, were likewise one-industry towns created in conjunction with the much broader economy of nearby Chicago. Such places, as Vera Schlakman and Stanley Buder have pointed out in their excellent urban biographies, had a one-dimensional quality, a lack of social vigor. These cities could not stand alone; they were in a sense colonies of a multifunctional mother city.
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Scientists think that the decline of amphibians could
You are the administrator of a SQL Server 2000 computer. The server contains a database named sales. Your company uses the database to store the sales department’s responses to requests for price quotations. The database is configured as shown in the exhibit.
Developers in your company create an application used for saving quotations. The application executes the following transact-SQL statement:
UPDATE QuotationSummary
SET CustomerName = ‘Jean-Paul Deloria’
WHERE QuotationID = 12
When the application executes the statement, the developers receive the following error:
Server: Mrh4403, Level 16, Stats 1, Line 1
View or function ‘QuotationSummary’ is not updateable because it contains aggregates:
You want developers to be able to use this UPDATE statement without generating errors. What should you do？
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