A J2EE problem from an International Bank EJB-RDB remapping problem

Question

Background Information:
We are going to deploy a J2EE project with DB2 V7.1 as the backend database server. However, the project is developed using WSED and initially assumed DB2 V.8 will be used as the database server. The inconsistency of DB2 version have us to make some amendments on the project. To simplify the scenario, what we do is to truncate the table/column name with length >18 to 18 defined in all .tblxmi, ... for EJB-RDB mapping. After we rebuild the project and deploy it in WAS 5.1, the following error occured,
CNTR0020E: Non-application exception occurred while processing method "populateSystemCache" on bean "BeanId(eFOSt
0#eFOS-Session.jar#SystemService, null)". Exception data: javax.ejb.TransactionRolledbackLocalException: ; nested exception is: com
.ibm.db2.jcc.DB2SQLException: DB2JDBCCursor Received Error in Method prepare:SQLCODE==> -107 SQLSTATE ==> 42622 Error Tokens ==> <<D
B2 7.1 SQLJ/JDBC>> "ACTUAL_MONTH_END_DATE" 18
com.ibm.db2.jcc.DB2SQLException: DB2JDBCCursor Received Error in Method prepare:SQLCODE==> -107 SQLSTATE ==> 42622 Error Tokens ==>
<<DB2 7.1 SQLJ/JDBC>> "ACTUAL_MONTH_END_DATE" 18
at COM.ibm.db2os390.sqlj.jdbc.DB2SQLJJDBCCursor.setError(DB2SQLJJDBCCursor.java:1232)
at COM.ibm.db2os390.sqlj.jdbc.DB2SQLJJDBCSection.prepare(DB2SQLJJDBCSection.java:767)
at COM.ibm.db2os390.sqlj.jdbc.DB2SQLJConnection.prepareStatement(DB2SQLJConnection.java:1470)
at COM.ibm.db2os390.sqlj.jdbc.DB2SQLJConnection.prepareStatement(DB2SQLJConnection.java:1580)
We are sure that we have made all the necessary truncations for the table/column. We discovered that some of the .class file, e.g. SystemBeanFunctionSet_71684028.class, was generated under the directory ../websphere_deploy/DB2UDBOS390_V71_1 after we rebuild the project. Many column names with length >18 were found there, such as ACTUAL_MONTH_END_DATE.
PreparedStatement pstmt = null;
try
pstmt = prepareStatement(connection, "INSERT INTO FAK.SYSTEM (SYSTEM_CODE, ACTIVE_FLAG, SYSTEM_NAME, BUSINESS_DATE, LAST_BUSINESS_DATE, NEXT_BUSINESS_DATE, REGION_CODE, MONTH_FLAG, ACTUAL_MONTH_END_DATE, LOCAL_COMPANY_CODE, LOCAL_BRANCH_CODE, LOCAL_COUNTRY_CODE, LOCAL_CURRENCY_CODE, FUNDING_CURRENCY_CODE) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
String tempString = (String)inputRecord.get(0);
May I know what those .class file (with number prefix in the file name)for and how can we solve the problem?
Thanks a lot

Answer 1

Put it simply, is there any method using WSED to
deploy the project using DB2 V.7.2 if the project is
assembled using DB2 V8 and no java source is
available ???If you are not making use of any functions specific to DB2 V8 how does it matter for you? The difference only lies in the DataSource configuration or something like that but certainly not on your java code(If you have not done anything specific to V8).Your problem sounds me like as suggested you have an extra/lesser parameters(?) or checkout the parameter that you are passing in is not overflowing any columns.