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POWeird DB2 database issue : Websphere Connection Pooling
 

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  1. POWeird DB2 database issue : Websphere Connection Pooling
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    <p>I am running a query from my java based web app running in a Websphere container. This query however, being pretty simple, fails with a weird erorr as follows: </p> <pre><code>[5/15/09 16:50:33:828 IST] 0000001e SystemErr R com.ibm.db2.jcc.b.zd: Invalid data conversion:Requested conversion would result in a loss of precision of 40000 [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.db2.jcc.b.q.a(q.java:137) [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.db2.jcc.b.q.a(q.java:1189) [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.db2.jcc.b.ad.a(ad.java:1217) [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.db2.jcc.b.ad.kb(ad.java:2977) [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.db2.jcc.b.ad.d(ad.java:1970) [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.db2.jcc.b.ad.d(ad.java:2342) [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.db2.jcc.b.ad.U(ad.java:489) [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.db2.jcc.b.ad.executeQuery(ad.java:472) [5/15/09 16:50:33:828 IST] 0000001e SystemErr R at com.ibm.ws.rsadapter.jdbc.WSJdbcPreparedStatement.executeQuery(WSJdbcPreparedStatement.java:559) </code></pre> <p>The query is pretty simple : it is as simple as </p> <pre><code>select field1, field2 from &lt;xyz table&gt; where &lt;xyz_pk&gt; = ? </code></pre> <p>The primary key is a INTEGER(4) and has data that has values up to 99999999. But however, when I run this query is run in my web app on a connection obtained from websphere connection pool, it starts failing for pk values > 35k+. In the jdbc binding code, I tried doing a preparedStatement.setInt() and preparedStatement.setFloat(). But nothing seems to work!! It just works for anything below 35k+ and fails for everything above that. </p> <p>Java's int size is much bigger than 35k+, so why would this query fail with this error? This happens just from my application, when I try the same query with a database client of my choice, proper results are being obtained for all values of the pkey! </p> <p>Did anyone faced this issue before? If yes, how did you get around it? </p>
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    1. USJay
    1. USJay
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. VTUpMod
    1. COCould you provide some sample Java code and a full stack trace for the case where you used PreparedStatement.setInt()? No classes in java.sql are in the stacktrace.
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      1. USNamshubWriter
 

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