Page 254 - DCAP408_WEB_PROGRAMMING

Web Programming

Notes You place the cookies on the visitor’s machine by using the cookies collection of the Response
object. To write a single simple cookie to the visitor’s system you would code this:
Response.Cookies (“NameOfCookies”) = “value”
The name of cookie is the name you want to store the cookie as on the visitor’s system. The value
represents the text to store in the cookie. So if you coded this:
Response.Cookies (“Search criteria 1”) = “ASP”
This could add the cookie with the name Search Criteria 1to the visitor’s system. The cookie
would contain the value ASP. If the cookie already exists, the old value will be overwritten.

Response Object Collections

Object Purpose
Cookies Allows you to write cookies to the visitor’s browser.

In our search criteria example, we could store the five most recent searches in a complex cookie.
The recent searches field is blank. But after the visitor has made a few searches, the select
element would be populated with those searches.

Task Mention the two properties of Response that will determine how long an ASP page
will be cached.

Self Assessment

Fill in the blanks:
14. Cookies are a way for you to store nuggets of information on the ……………….. computer.
15. Use your ……………….. to retrieve the values stored on the visitor’s system at a later time.

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Caselet The Importance of Data Warehousing

f you were ever curious about datamining/datawarehousing, you’d have heard this
story about “weekend daddies”. In the US, a shopping chain discovered that adult
Imales who had recently become daddies, sauntered into the mall, picked up beer for
themsel ves for the weekend, and napkins for their kids’ use during the week.
Datawarehousing technology helped in the discovery. Once this was learnt, the mall
placed the nappies’ and beer stands next to each other and saw sales soar.
And, if you ever get to run a bank, datawarehousing technology will have told you that
more often than nought, customers that contribute the most to your profits are also the
ones who default on cheques frequently.
Warehousing and mining of data are hot issues in the backrooms of Net enterprises and
traditional companies wanting to take advantage of the Net. The two concepts are simple
and closely related.
Data warehousing is a way of storing content in databases to enable data mining. Data
mining is the technique that reads the data warehouses and makes the tonnes of content on
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