问题
I started getting the below SQL exception
and I don't know what's the root cause for this exception? I am also closing dbconnection
and prepared statement
too. Then what's the problem?
java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
ORA-01000: maximum open cursors exceeded
ORA-00604: error occurred at recursive SQL level 1
ORA-01000: maximum open cursors exceeded
ORA-01000: maximum open cursors exceeded
Below is my code which I am using. Anything wrong in my code?
for (Entry<Integer, LinkedHashMap<Integer, String>> entry : GUID_ID_MAPPING.entrySet()) {
pstatement = db_connection.prepareStatement(PDSLnPConstants.UPSERT_SQL); // create a statement
pstatement.setInt(1, entry.getKey());
pstatement.setString(2, entry.getValue().get(PDSLnPConstants.CGUID_ID));
pstatement.setString(3, entry.getValue().get(PDSLnPConstants.PGUID_ID));
pstatement.setString(4, entry.getValue().get(PDSLnPConstants.SGUID_ID));
pstatement.setString(5, entry.getValue().get(PDSLnPConstants.UID_ID));
pstatement.setString(6, entry.getValue().get(PDSLnPConstants.ULOC_ID));
pstatement.setString(7, entry.getValue().get(PDSLnPConstants.SLOC_ID));
pstatement.setString(8, entry.getValue().get(PDSLnPConstants.PLOC_ID));
pstatement.setString(9, entry.getValue().get(PDSLnPConstants.ALOC_ID));
pstatement.setString(10, entry.getValue().get(PDSLnPConstants.SITE_ID));
pstatement.executeUpdate();
}
} catch (SQLException e) {
getLogger().log(LogLevel.ERROR, e);
} finally {
if (pstatement!= null) {
try {
pstatement.close();
pstatement = null;
} catch (SQLException e) {
getLogger().log(LogLevel.ERROR, e.getMessage(), e.fillInStackTrace());
}
}
if (db_connection!= null) {
try {
db_connection.close();
db_connection = null;
} catch (SQLException e) {
getLogger().log(LogLevel.ERROR, e.getMessage(), e.fillInStackTrace());
}
}
回答1:
I think the PreparedStatement
definition should be pulled out of the loop and reused within the loop by calling clearParameters
:
pstatement = db_connection.prepareStatement(PDSLnPConstants.UPSERT_SQL); // create a statement
for (Entry<Integer, LinkedHashMap<Integer, String>> entry : GUID_ID_MAPPING.entrySet()) {
pstatement.setInt(1, entry.getKey());
pstatement.setString(2, entry.getValue().get(PDSLnPConstants.CGUID_ID));
pstatement.setString(3, entry.getValue().get(PDSLnPConstants.PGUID_ID));
pstatement.setString(4, entry.getValue().get(PDSLnPConstants.SGUID_ID));
pstatement.setString(5, entry.getValue().get(PDSLnPConstants.UID_ID));
pstatement.setString(6, entry.getValue().get(PDSLnPConstants.ULOC_ID));
pstatement.setString(7, entry.getValue().get(PDSLnPConstants.SLOC_ID));
pstatement.setString(8, entry.getValue().get(PDSLnPConstants.PLOC_ID));
pstatement.setString(9, entry.getValue().get(PDSLnPConstants.ALOC_ID));
pstatement.setString(10, entry.getValue().get(PDSLnPConstants.SITE_ID));
pstatement.executeUpdate();
pstatement.clearParameters();
}
You may also want to investigate batch processing (addBatch
). If you are testing, you may need to wait a bit for the existing "open" cursors to be cleaned up.
回答2:
Well I guess I am giving you one way I went around it but anyway a lot of people are going to come across such a problem so I might as well share.
I was using NetBeans 7.3.1 and referring to an Oracle Database on a remote Server so I couldn't edit the Registry Keys and instead I realised I was using ojdbc14.jar and all i needed was ojdbc6.jar in my classpath.
Solution: Used ojdbc6.jar instead of ojdbc14.jar
来源:https://stackoverflow.com/questions/12083712/ora-00604-error-occurred-at-recursive-sql-level-1