我在ORA-01000 SQL异常之上得到了这个。
在我的数据库中有一个包含1500条记录的表,我正在尝试插入这些值。插入另一个表时我遇到了这个错误。
java.sql.SQLException:ORA-01000:超出了最大打开游标数 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.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:213) at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:796) at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1031) at oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:836) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1124) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3285) at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3368) 在com.exceloid.newdb.NewDBInsertion.insertCLocation(NewDBInsertion.java:1239) 在com.exceloid.dbmigration.CBPartnerImpl.getCLocationData(CBPartnerImpl.java:1198) 在com.exceloid.serviceimpl.CBPartnerServiceImpl.doProcess(CBPartnerServiceImpl.java:22) 在com.exceloid.controller.HomeController.cBPartner(HomeController.java:272) 在com.exceloid.controller.HomeController.welcomePage(HomeController.java:37) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) 在org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219) 在org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) 在org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) 在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) 在org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) 在org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) 在org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) 在org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) 在org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936) 在org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827) 在javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 在org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812) 在javax.servlet.http.HttpServlet.service(HttpServlet.java:723) 在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 在org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 在org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 在org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 在org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) 在org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 在org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) 在org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) 在org.apache.coyote.http11.Http11Protocol $ Http11ConnectionHandler.process(Http11Protocol.java:606) 在org.apache.tomcat.util.net.JIoEndpoint $ Worker.run(JIoEndpoint.java:489) 在java.lang.Thread.run(Thread.java:745)
这是我的代码:
Connection connection = null;
PreparedStatement pst = null;
ResultSet result = null;
try {
connection = newDbConnection(connection);
if(connection != null){
for (CLocation cpayment : list) {
cLocationId = cpayment.getcRegionID();
adClient = cpayment.getAdClientID();
adOrg = cpayment.getAdOrgID();
updated = cpayment.getUpdated();
updatedBy = cpayment.getUpdatedBy();
created = cpayment.getCreated();
createdBy = cpayment.getCreatedBy();
isActive = cpayment.isActive();
city = cpayment.getCity();
postal = cpayment.getPostal();
postalAdd = cpayment.getPostalAdd();
cCountryId = cpayment.getcCountryID();
cCityId = cpayment.getcCityID();
address1 = cpayment.getAddress1();
address2 = cpayment.getAddress2();
cRegionId = cpayment.getcRegionID();
regionName = cpayment.getRegionName();
if(isActive == true) {
InsertIsActive = "Y";
} else {
InsertIsActive = "N";
}
if(ad.equals(adClient)){
final String sql = "SELECT * FROM c_location where c_location_id = '"+cLocationId+"'";
pst = connection.prepareStatement(sql);
result = pst.executeQuery();
boolean exist=result.next();
if(exist){
System.out.println("already table data exists");
flag = true;
} else {
String sql1="INSERT INTO c_location " + " VALUES ('"+cLocationId+"', '"+client+"', '"+org+"', '"+InsertIsActive+"', '"+created+"', '"+createdBy+"', '"+updated+"', '"+updatedBy+"', '"+address1+"', '"+address2+"', '"+city+"', '"+postal+"', '"+postalAdd+"', '"+cCountryId+"', '"+cRegionId+"', '"+cCityId+"', '"+regionName+"')";
System.out.println(sql1);
pst=connection.prepareStatement(sql);
pst.executeUpdate();
flag = true;
}
} else {
System.out.println("new db does not match adclient ID");
}
}
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
if(result != null){
try{
result.close();
}catch(Exception e){}
}
if(pst != null){
try{
pst.close();
}catch(Exception e){}
}
if(connection != null){
try {
connection.close();
} catch (SQLException e){}
}
}
我关闭了所有连接但是我还是面临这个错误。
我已经在我的oracle db控制台中执行了此命令,以增加游标的数量。
ALTER SYSTEM SET OPEN_CURSORS=1337 SID='*' SCOPE=BOTH;
但同样的错误再次发生。
答案 0 :(得分:2)
您只关闭最后一条SQL语句。
您正在遍历所有CLocation,为每个CLocation打开一个Preparedstatement而不关闭单个CLocation。尝试在执行后关闭循环中的Preparedstatement,因为每个都在数据库端创建一个新的数据库光标。
答案 1 :(得分:2)
更改您的SQL语句以使用绑定参数,并且移动不在循环中
final String sql = "SELECT * FROM c_location where c_location_id = ?";
pst = connection.prepareStatement(sql);
在循环内部设置绑定参数
pst.setString(1, cLocationId);
你应该对INSERT语句做同样的事情。
答案 2 :(得分:0)
重写您的代码以使用try-with-resources构造。
请参阅:https://blogs.oracle.com/WebLogicServer/entry/using_try_with_resources_with
还使用绑定变量。它会更短,更安全,甚至更快。