Java代码在执行conn.createStatement
和conn.prepareStatement
时候
实际上都是相当和在数据库中打开了
个cursor
不要放在这两个方法不要放在循环中
java.sql.SQLException: ORA-00604: 递归 SQL 级别 1 出现错误
ORA-01000: 超出打开游标的最大数
ORA-01000: 超出打开游标的最大数
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743)
at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:207)
at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:790)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1031)
at oracle.jdbc.driver.T4CStatement.executeMaybeDescribe(T4CStatement.java:830)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1124)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1264)
at com.eastmoney.hdfs.DBUtil.Execute(DBUtil.java:62)
at com.eastmoney.hdfs.SyncJob.Paging(SyncJob.java:366)
at com.eastmoney.hdfs.SyncJob.Import(SyncJob.java:312)
at com.eastmoney.hdfs.SyncJob.main(SyncJob.java:499)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
Caused by: java.lang.NullPointerException
at com.eastmoney.hdfs.SyncJob.Import(SyncJob.java:315)
at com.eastmoney.hdfs.SyncJob.main(SyncJob.java:499)
... 5 more
来源：https://www.cnblogs.com/qoyi/archive/2012/02/22/2363060.html