93 lines
3.9 KiB
Plaintext
93 lines
3.9 KiB
Plaintext
//+-------------------------------------------------------------------------
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) 1998-1999 Microsoft Corporation. All Rights Reserved.
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//
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// Sample Name: VJQuery - Sample Visual J++ Query Application
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//
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//--------------------------------------------------------------------------
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Description
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===========
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The VJQuery sample is an example command-line application written in
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Visual J++ that illustrates how to query Indexing Service using the SQL
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query language and the ADO API.
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Path
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====
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Source: mssdk\samples\winbase\indexing\VJQuery\
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User's Guide
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============
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* To build the sample
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1. In the Visual J++ development environment, open the
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VJQuery.vjp project from the source path of the sample.
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2. In the Build menu, select Build.
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* To execute a default query using the sample
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1. Make sure that Indexing Service is started.
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2. In the Debug menu, select Start.
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3. In the JView window, read the results of the default SQL query
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SELECT Filename, Size, Write, Path
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FROM SCOPE('DEEP TRAVERSAL OF "\"')
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WHERE CONTAINS('"Indexing Service"')
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* To specify a complete SQL statement for a query using the sample
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1. Make sure that Indexing Service is started.
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2. Set the PATH environment variable to include "D:\mssdk\Bin",
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where D: is the drive on which you installed the Platform SDK.
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3. Open a command window and change the directory to the path of the
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built sample.
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4. Formulate a query that you know will succeed. You need to know the
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machine, catalog, scope, and query text.
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5. Submit a complete SQL statement by entering, at the command-line
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prompt,
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jview /p /cp:p "<JAVAPACKAGES>" VJQuery -s <Statement>
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where <Statement> is a complete SQL statement such as the
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preceding default SQL query. You must escape any double-quote
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characters in the text of the <Statement> parameter.
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* To specify only a WHERE clause for a query using the sample
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1. Make sure that Indexing Service is started.
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2. Set the PATH environment variable to include "D:\mssdk\Bin",
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where D: is the drive on which you installed the Platform SDK.
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3. Open a command window and change the directory to the path of the
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built sample.
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4. Formulate a query that you know will succeed. You need to know the
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machine, catalog, scope, and query text.
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5. Submit text for a WHERE clause that is concatenated to the
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following incomplete, fixed SQL statement
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SELECT Filename, Size, Write, Path
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FROM SCOPE('DEEP TRAVERSAL OF "\"')
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WHERE
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by entering, at the command-line prompt,
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jview /p /cp:p "<JAVAPACKAGES>" VJQuery <Where_Text>
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where <Where_Text> is the desired text to follow the WHERE keyword.
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You must escape any double quotes in the text of the <Where_Text>
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parameter. For example, to duplicate the default SQL query, enter
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jview /p /cp:p "<JAVAPACKAGES>" VJQuery CONTAINS('\"Indexing Service\"')
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Programming Notes
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=================
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The Query class has methods that set the text of the query, execute the
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query, and display the results of the query.
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* Either the SetRawSql method or the SetSqlWhere method sets the
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m_SqlText variable to the specified SQL statement.
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* The Execute method executes the query. It creates an ADO Recordset
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object and executes the query by opening the object with the SQL text
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and the OLE DB Provider for Indexing Service.
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* The Display method enumerates the resulting values of the fields from
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the Recordset object and prints them.
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