存储过程中遇到ora-00942表或视图不存在 CREATE OR REPLACE PROCEDURE p IS CURSOR c IS SELECT * FROM scott.emp FOR UPDATE; BEGIN FOR v_temp IN c LOOP IF (v_temp.deptno = 10) THEN UPDATE scott.emp SET sal = sal + 10 WHERE CURRENT OF c; ELSIF (v_temp.deptno = 20) THEN U
Xamarin 中Visual Studio创建项目提示错误 错误信息:Object reference not set to an instance of an object 出现这种情况,是由于没有安装对应的Android SDK API.解决办法:在SDK Manager中,安装对应的SDK API,即可.
我的hadoop启动后,各个节点都正常,但是无法查看hdfs目录,错误提示 Bad connection to FS. command aborted. 查了下网上的解决办法,主要是删除tmp下的所有文件,然后格式化就可以了. 原文:http://www.tuicool.com/articles/J7R3mei 问题目录表: Bad connection to FS. command aborted. exception: Call to localhost/127.0.0.1:8888 fa
一.问题描述 使用Eclipse创建Maven项目时,报一下错误,不能创建成功. 二.问题原因 错误详细描述是说 Could not resolve archetype org.apache.maven.archetypes:maven-archetype-webapp:1.0 from any of the configured repositories. 大致是说无法从任何已经配置的库里面解析 org.apache.maven.archetypes:maven-archetype-webap
转自:http://blog.csdn.net/afgasdg/article/details/12757433 问题描述: 使用Eclipse自带的Maven插件创建Web项目时报错: Could not resolve archetype org.apache.maven.archetypes:maven-archetype-webapp:RELEASE from any of the configured repositories. Could not resolve artifact o