Problem with a simple CMP bean while working on JBoss

CLIENT :   EmployeeSalInsertClient.java
CMP Jar: emp
------------------------------------------------
Database : MS SQL SERVER
Table Name is : emp
Column names:
eno  -  int
ename - varchar(30)
esal   -  float

It is a simple ejb.........
able to insert the records into the database.............
unable to find records..................

The error is given below

C:\javajava -classpath

.;D:\jboss-3.2.4\server\default\lib\jboss-j2ee.jar;D:\jboss-3.2.4\serv

er\default\lib\jbossall-client.jar;D:\jboss-3.2.4\server\default\lib\jnet.jar;
EmployeeSalInsertClient
Exception in thread "main" javax.ejb.FinderException: Unknown query:
public
abstract emp.Employee
emp.EmployeeHome.findByPrimaryKey(java.lang.Integer)
throws java.rmi.RemoteException,javax.ejb.FinderException
at

sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.jav
a:245)
 at

sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:220)
 at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:122)
 at
org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown
Source)
 at

org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:
135)
 at

org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:96)
 at

org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
 at

org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
 at
org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:173)
 at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
 at $Proxy0.findByPrimaryKey(Unknown Source)
 at
EmployeeSalInsertClient.main(EmployeeSalInssimertClient.java:34)