Question

我正在使用存储过程，我正在获取一些记录，并希望过滤这些记录的22-May-2018 16:02:06.710 [AsyncIPMSProc-2] WARN o.h.e.j.spi.SqlExceptionHelper - SQL Error: 0, SQLState: null 22-May-2018 16:02:06.710 [AsyncIPMSProc-2] ERROR o.h.e.j.spi.SqlExceptionHelper - HikariPool-1 - Connection is not available, request timed out after 30001ms. 22-May-2018 16:02:06.715 [AsyncIPMSProc-2] ERROR o.s.a.i.SimpleAsyncUncaughtExceptionHandler - Unexpected error occurred invoking async method 'public void org.coffeeshop.service.CommunicationService.processCommunicationRequest(java.lang.Long,java.lang.String)'. org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:450) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:378) at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:474) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:289) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) at com.sun.proxy.$Proxy152.findById(Unknown Source) at org.coffeeshop.service.CommunicationService.processCommunicationRequest(CommunicationService.java:297) at org.coffeeshop.service.CommunicationService$$FastClassBySpringCGLIB$$d205c5a.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:48) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97) at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:109) at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:136) at org.hibernate.internal.SessionImpl.connection(SessionImpl.java:524) at sun.reflect.GeneratedMethodAccessor105.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:223) at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:207) at org.springframework.orm.jpa.vendor.HibernateJpaDialect$HibernateConnectionHandle.doGetConnection(HibernateJpaDialect.java:391) at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:154) at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:400) ... 25 common frames omitted Caused by: java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30001ms. at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:669) at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:183) at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:148) at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:128) at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:35) at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:106) ... 35 common frames omitted 22-May-2018 16:02:07.634 [AsyncIPMSProc-1] WARN o.h.e.j.spi.SqlExceptionHelper - SQL Error: 0, SQLState: null 22-May-2018 16:02:07.634 [AsyncIPMSProc-1] ERROR o.h.e.j.spi.SqlExceptionHelper - HikariPool-1 - Connection is not available, request timed out after 30000ms. 22-May-2018 16:02:07.634 [AsyncIPMSProc-1] ERROR o.c.s.CommunicationService - Unhandled Error Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection值，真和假

在此表中，我只想要null为1或NULL的记录这是我的查询

PlanIsValid

Answer 1

使用where子句：

Select ui.ID,sp.PlanName, sp.PlanIsValid 
from Usersinfo ui 
left join SubscriptionPlan sp on ui.ID = sp.UserID 
where sp.PlanIsValid is null or sp.PlanIsValid = 1;

但是，如果您想获得ID表中不存在的SubscriptionPlan，则可以使用NOT EXISTS代替

select ui.ID
from Usersinfo ui 
where not exists (select 1 
                  from SubscriptionPlan sp
                  where ui.ID = sp.UserID 
                 );

在Sql中获取唯一记录

1 个答案: