This is my house!

mysql:出现：null,  message from server: "Host ***" is not allowed to connect to this MySQL server"错误在安装mysql时一定要注意，把Enable root access from remote machines 复选上，如图所示：

1 package  com.e104cn.pda.test;  2 import  org.junit.AfterClass;  3 import  org.junit.BeforeClass;  4

hibernate的：Exception in thread "main" java.lang.NoClassDefFoundError: javax/transaction/Synchronization缺少jta.jar包

Hibernate Proxool连接池配置总结及常遇问题2008-04-12 13:38使用的proxool版本:proxool-0.9.0RC3.jar配置目录:Hibernate.hbm.xml文件配置          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"          "ht

<br />关于ORA-00936网上找到的处理方法的：<br />1：<br />ORA-00936, ORA-936 is a generic error indicating a missing expression in the SQL statement that you have just executed.  Most probably this error is indicating that you have either missed a , [ comma ] or the from

1出现此报错的原因是使用的mysql8.0 以前用的是：tx_isolation 现在用是： transaction_isolationa.通过升级 sqlalchemy 的方法可以解决此问题， pip install -i https://pypi.tuna.tsinghua.edu.cn/simple --upgrade sqlalchemy --ignore-installed(亲测有效...