add jar /path/udf/xxxxxxxxxx.jar
// 临时注册UDF函数(hive重启后,失效)
create temporary function db.functionName as 'udf.functionName';
// 永久注册UDF函数
create function functionName as 'udf.functionName'
Traits are a fundamental unit of code reuse in Scala. A trait encapsulates method and field definitions, which can then be reused by mixing them into classes. Unlike class inheritance, in which each c
版本:WebLogic Server 10.3
说明:%DOMAIN_HOME%:指WebLogic Server 域(Domain)目录
例如我的做测试的域的根目录 DOMAIN_HOME=D:/Weblogic/Middleware/user_projects/domains/base_domain
1.为了保证操作安全,备份%DOMAIN_HOME%/security/Defa
http://crazyjvm.iteye.com/blog/1693757 文中提到相关超时问题,但是又出现了一个问题,我把min和max都设置成了180000,但是仍然出现了以下的异常信息:
Client session timed out, have not heard from server in 154339ms for sessionid 0x13a3f7732340003
在Mysql 众多表中查找一个表名或者字段名的 SQL 语句:
方法一:SELECT table_name, column_name from information_schema.columns WHERE column_name LIKE 'Name';
方法二:SELECT column_name from information_schema.colum