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[20210428]改进pr.sql脚本.txt
[20210428]改进pr.sql脚本.txt--//tanel poder提供一个脚本pr.sql,用来实现显示信息的纵向显示。例子:SCOTT@book> select * from dept where deptno=10 2 @ prPivoting output using Tom Ky ...
分类:数据库   时间:2021-04-29 11:47:01    阅读次数:0
IDEA中避免修改后台代码后手动install和重启 Maven
1、File--Setting--bulid--compiler 作用:每次修改类文件的时候会自动编译;若不勾选,则需每次手动编译。 2、Shift+Ctrl+Alt+/,选择Registry 勾上compiler.automake.allow.when.app.running 这个东西的作用:允许 ...
分类:其他好文   时间:2021-04-28 12:02:11    阅读次数:0
C# json转datatable问题 Unexpected JSON token when reading DataTable
{"name":"张三","agg":"50"} 就是这么简单json转datatable会出问题。其实将这个json改成下面这样就ok了 [{"name":"张三","agg":"50"}] 应该是只有数组才能转化为datatable的。 ...
分类:Windows程序   时间:2021-04-24 13:23:03    阅读次数:0
Spring Boot下使用JPA报错:'hibernate.dialect' not set的解决办法
Spring Boot 下使用JPA,报org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set错误,异常信息如下: Caused ...
分类:编程语言   时间:2021-04-23 12:28:00    阅读次数:0
Javascript Promise技术
Simple explain: In ES2018 When the catch method is called with argument onRejected, the following steps are taken: Let promise be the this value. Retu ...
分类:编程语言   时间:2021-04-22 16:05:11    阅读次数:0
【事件类】雅思口语
【事件】 bike trip Describe an unforgettable bike trip you had You should say: When and where you had the trip Who you went with Why you had the trip by b ...
分类:其他好文   时间:2021-04-21 12:57:26    阅读次数:0
Solve Error: Run 'hexo g', got 'Killed'
When you run hexo g on any web instances, like on AWS or Azure, you might get the following error: (node:3568) ExperimentalWarning: The fs.promises AP ...
分类:其他好文   时间:2021-04-12 12:28:51    阅读次数:0
Mysql基本技巧--LIKE中和如何匹配通配符本身
LIKE中和如何匹配通配符本身 LIKE中使用%和_作为通配符是常用操作,但是如果想要文本中的%和_怎么办? 解决:在前面加上\ 即可 -- 验证匹配文本中的_ SELECT case when 'event_sadfad' like '%\_%' then 1 else 0 end -- retu ...
分类:数据库   时间:2021-04-10 12:50:47    阅读次数:0
Uncaught (in promise) Error: Redirected when going from "/login" to "/home" via a navigation guard.
项目中遇到如下报错内容:Uncaught (in promise) Error: Uncaught (in promise) Error: Redirected when going from "/login" to "/home" via a navigation guard. 原因:vue-ro ...
分类:其他好文   时间:2021-04-07 11:16:46    阅读次数:0
[Node.js] Resolve path problem in all envs (require.resolve)
When dealing with `fs` library, the common problem you will meet is the path to file. Different envs may have different way to handle the path. The be ...
分类:Web程序   时间:2021-03-30 13:42:21    阅读次数:0
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