MORE INFORMATION
In Microsoft Excel 97, Web queries allow you to query data from a specific
World Wide Web, Internet, or intranet site and retrieve the information
directly into a Microsoft Excel worksheet. Microsoft Excel 97 includes some
sample Web queries.
Definition of a Web Query File
A Web query file is a text file that contains from one to four lines of
text where each line of text is separated by a carriage return. Web query
files can be created in any text editor, such as Notepad, and they are
saved with the .iqy extension.
Creating a Web Query File
To create a Web query file, follow these steps:
- Start a text editor, such as Notepad.
- Type the four lines of text in the text editor using the following
information:
First Line: Type of Query
The first line in the Web query file tells Microsoft Excel what type of
query the file contains. At this time, the following are the only valid
query types:
WEB
<line omitted>
If you omit the line, WEB is the assumed value.
Second Line: Version of Query
The second line of a Web query file tells Microsoft Excel the version
of the query that is being executed. At this time, the following are the
only valid versions:
1
<line omitted>
NOTE: If you specify the type of query in the first line, you must
specify a version in the second line. If you omit the type, you must
also omit the version.
Third Line: Uniform Resource Locator (URL)
The third line of a Web query file determines the Web document on which
the query acts. Unless the Web document is a POST type (see the "Fourth
Line: POST Parameters" section), this information is the only required
value in the Web query file .
Type the URL in one of the following formats.
File location URL format
-------------------------------------------------------------------
Web document http://<server>/<file>
File stored locally <drive>:\<directory>\<file>
File stored on a network \\<server>\<share>\<directory>\<file>
where <server> is the server name that contains the Web document or
file on the network drive, <file> is the name of the document,
<drive> is the drive that contains the local file, <directory> is the
folder name that contains the local file, and <share> is the name of
the share on the server.
Fourth Line: POST Parameters
The fourth line of a Web query file contains POST parameters. Note
that this line is optional and must be included only if the third line
(the URL) exceeds 200 characters in length as a result of adding
parameters.
When you query a Web document for information, the parameters sent to
the Web document can be sent in one of two ways: GET or POST.
When you use the GET method, data values are included in the same line
as the URL. The following example illustrates how to type the line
http://<server>/<file>parameters>
where <server> is the name of the server that contains the Web document,
and <file> is the name of the document.
When you use the POST method, data values are sent in a separate line.
The following example illustrates how to type the line
http://<server>/<file>
parameters
where <server> is the name of the server that contains the Web document,
and <file> is the name of the document.
- After you type all the required lines, save the new file as a text file
with the .iqy extension (for example, save the file as Myquery.iqy).
- Quit the text editor.
Using Static and Dynamic Parameters in a Web Query
In Web queries, you can use static and/or dynamic parameters. Static
parameters send query data without prompting you for any values. Dynamic
parameters prompt you to type one or more values when the Web query is
executed.
The syntax for parameters is as follows:
<parameter>=<value string>
where <parameter> is the name of a parameter (for example, stock) and
<value string> is a value.
The value string can be one of the following values.
Parameter type Value string
-----------------------------------------------------------
Static value1
Dynamic ["value1","Please enter the first value:"]
In the dynamic value string, the first argument (value1) is the name of the
value to be entered. The second argument is the message that appears when
the Web query is executed.
If multiple parameters are required, separate them with an ampersand
character (&). The following example illustrates the syntax:
quote1=stock1"e2=stock2
When multiple values are sent for a single parameter, separate them with a
plus sign (+). The following example illustrates the syntax:
quote1=stock1+stock2"e2=stock3+stock4
You can combine static and dynamic parameters within a single parameter
string. The following example illustrates the syntax:
quote1=stock1"e2=["stock2","Please enter the second value:"]
Examples of Web Query Files
The following examples are designed to demonstrate the syntax used by Web
query files in Microsoft Excel 97.
NOTE: The following examples are not functional Web queries.
Example One:
This example sends the value "wyut" to the Client.exe and retrieves a
value. You are not prompted to type any values. The parameter is sent using
the GET method.
WEB
1
http://www.weylandyutani.com/cgi-bin/client.exe?quote=wyut
If you like, you can omit the first two lines and use the following line:
http://www.weylandyutani.com/cgi-bin/client.exe?quote=wyut
It is acceptable to omit the first two lines when you create the .iqy file.
This is true for all of the examples shown in this article.
Example Two:
This example sends the values "wyut" and "hypd" to the Client2.exe, and
then retrieves values. You are not prompted to type any values. The
parameters are sent using the POST method.
WEB
1
http://www.weylandyutani.com/cgi-bin/client2.exe
quote1=wyut"e2=hypd
Example Three:
This example prompts you to type a stock symbol, sends that symbol to the
Client.exe, and retrieves a value. The parameters are sent using the GET
method.
NOTE: The third and fourth lines of this example should be typed on a
single line in your text file.
WEB
1
http://www.weylandyutani.com/cgi-bin/client.exe?quote1=
["stock1","Please enter a stock symbol:"]
Example Four
This example sends the value "wyut" and a value that you are prompted to
enter to the Client2.exe, and then retrieves the values. The parameters are
sent using the POST method.
WEB
1
http://www.weylandyutani.com/cgi-bin/client2.exe
quote1=wyut"e2=["stock2","Please enter a stock symbol:"]