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POSystem.Data.SQLite issue on compact Framework 3.5
 

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  1. POSystem.Data.SQLite issue on compact Framework 3.5
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    <p>I am using sqlite in my compact framework application to log the events in system. I am also using <a href="http://sqlite.phxsoftware.com/" rel="nofollow">System.Data.SQLite</a>. The event has the time stamp to describe at what time it occurred. I am storing this Time stamp as Ticks in my table. Along with this column the table contains another 5 columns of integer/text type. Below is table schema</p> <pre><code>CREATE TABLE T1 (TimeStamp INTEGER, Col2 INTEGER, Col3 INTEGER, Col4 INTEGER, Col5 INTEGER, Col6 TEXT, PRIMARY KEY(TimeStamp DESC)); </code></pre> <p>I am querying for the data between two time stamp using ADO with below query</p> <pre><code>SELECT TimeStamp,Col1,Col2,Col3,Col4,Col5 FROM T1 WHERE TimeStamp BETWEEN @startDate AND @endDate LIMIT 2000; </code></pre> <p>I am converting the Time stamp given by the user to Ticks and sending them as parameter values for '@startDate' and '@endDate'. </p> <p>After I executed above query then I start iterating over SqLiteDataReader using <strong>while loop</strong> there I found that this while loop never comes out and continue to execute endlessly. Ideally it should end after reading 2000 records. Below is code snippet.</p> <pre><code>SQLiteDataReader dr = cmd.ExecuteReader(); while(dr.Read()) { : : Fill the data from column into Event class object : } </code></pre> <p>Please let me know if anybody has faced same issue.</p> <p><strong>EDIT :-</strong> After investigation I found that this problem comes up on fully loaded system. I simulate the environment of fully loaded system and tried on it.</p>
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    1. USOmkar
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    1. COCan you create a full sample program to generate the data and query out of it? This would help. Have you also tried the same query in the sqlite terminal?
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    2. COYes, I tried the query on sqlite terminal; it worked.
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