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优化建议
We have established some guidelines for 3D games to reduce crashes and optimize performances, please have a look and make sure to follow above ones. L ...
分类:其他好文   时间:2019-10-14 11:02:50    阅读次数:107
Leetcode: Robot Room Cleaner
Given a robot cleaner in a room modeled as a grid. Each cell in the grid can be empty or blocked. The robot cleaner with 4 given APIs can move forward... ...
分类:其他好文   时间:2019-10-13 11:10:27    阅读次数:130
触发器执行报错it is already used by statement
场景: 1.创建一个触发器,当往图书表中插入一条数据时,在图书表的日期字段中插入当天的日期(now())。 这里设置触发器: 触发器创建是成功的,但是当执行插入操作时,会报错: 这是因为在操作和更新是在同一个表中时,会有一个写锁,导致你update是无法执行成功的, 所以我们要使用set变量的方法去 ...
分类:其他好文   时间:2019-10-11 18:05:02    阅读次数:127
解决Address localhost:1099 is already in use
今天使用IDEA启动项目的时候,报了下列错误: Address localhost:1099 is already in use 问题解决: 方式一:按快捷键 Ctrl+Shift+Esc 打开任务管理器,找到java.exe,然后点击“结束任务”即可! 方式二:这种方式适用于所有端口被占用的情况: ...
分类:其他好文   时间:2019-10-09 21:17:31    阅读次数:133
ACIT 3910 Database
ACIT 3910 Database Administration and ManagementAssignment #1Patrick Guichon January 6, 2019 1 of 6ACIT 3910 Database Administration andManagementAssi ...
分类:数据库   时间:2019-10-04 19:13:02    阅读次数:100
A - Perfect Team CodeForces - 1221C
You may have already known that a standard ICPC team consists of exactly three members. The perfect team however has more restrictions. A student can ...
分类:其他好文   时间:2019-10-03 00:46:44    阅读次数:101
2018宁夏A题
As an ACM-ICPC newbie, Aishah is learning data structures in computer science. She has already known that a stack, as a data structure, can serve as a ...
分类:其他好文   时间:2019-10-01 22:13:28    阅读次数:129
win10 修改系统名称
~~原文的英文很简单,而且浏览器的翻译可能讲的比我清楚,我也不知道我为什么要翻译,~~ 国庆快乐(阅兵很好看)。 win10 修改系统名称 If you’ve ever bought a new computer with Windows already installed, you might b ...
分类:Windows程序   时间:2019-10-01 18:26:31    阅读次数:431
常见问题
问题一:如何将转换的.sql文本快速导入oracle数据库中 解决方法: 方法一:如果文件内容比较少的情况下,可以直接将转换过的文件内容,复制文本内容至 PLSQL 文件 SQL窗口或者命令窗口,进行执行,提交。 SQL窗口界面 命令窗口截图 注意:执行完之后,文档如果没有写commit的话,需要手 ...
分类:其他好文   时间:2019-10-01 11:46:22    阅读次数:155
错误: 代理抛出异常错误: java.rmi.server.ExportException: Port already in use: 1099; nested exception is: java.net.BindException: Address already in use: JVM_Bind
错误: 代理抛出异常错误: java.rmi.server.ExportException: Port already in use: 1099; nested exception is: java.net.BindException: Address already in use: JVM_Bin ...
分类:编程语言   时间:2019-09-30 23:54:35    阅读次数:207
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