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Postgres-存储过程 return 详解
如果返回一个 数字或者字符 比较简单,那么多行多列怎么办呢,分为以下几种情况 【东西很多,这里只做简单列举】 返回多行单列 又分为几种方式 1. return next,用在 for 循环中 CREATE OR REPLACE FUNCTION funcname ( in_id integer) R ...
分类:其他好文   时间:2020-08-25 15:49:22    阅读次数:40
Git Hook - 实现commit-msg自动装饰
背景:并行版本较多,合并至版本发布分支主分支时无法看出初始提交分支 需求:系统开发人员执行git commit时,自动在commit-msg中补充当前所在分支名 操作步骤: 1、在子系统git仓库路径/.git/hooks下,将以下内容覆盖commit-msg.sample文件中 #!/bin/sh ...
分类:其他好文   时间:2020-08-25 15:44:52    阅读次数:35
c++ g++运行出现Enable multithreading to use std::thread: Operation not permitted解决
使用了c++11的thread库,运行出现了: terminate called after throwing an instance of 'std::system_error' what(): Enable multithreading to use std::thread: Operation ...
分类:编程语言   时间:2020-07-30 10:51:11    阅读次数:91
566. Reshape the Matrix
In MATLAB, there is a very useful function called 'reshape', which can reshape a matrix into a new one with different size but keep its original data. ...
分类:其他好文   时间:2020-07-29 15:35:58    阅读次数:66
八、常用的装饰器
1、常用的装饰器有:before_request、after_request(这两个装饰器有点类似于django的中间件组件) 源码: 1 def preprocess_request(self): 2 """Called before the request is dispatched. Call ...
分类:其他好文   时间:2020-07-26 01:48:46    阅读次数:45
1233. Remove Sub-Folders from the Filesystem
Given a list of folders, remove all sub-folders in those folders and return in any order the folders after removing. If a folder[i] is located within  ...
分类:其他好文   时间:2020-07-22 15:45:22    阅读次数:58
Understand Spring Security Architecture and implement Spring Boot Security
In this tutorial we will be looking at how Spring Security works and its architecture. We will be creating a Spring Boot Project to expose two REST AP ...
分类:编程语言   时间:2020-07-20 20:32:59    阅读次数:61
Warm boot与Cold boot的区别
To perform a cold boot (also called a "hard boot") means to start up a computer that is turned off. It is often used in contrast to a warm boot, which... ...
分类:其他好文   时间:2020-07-18 00:38:36    阅读次数:188
[ML L9] Clustering (K-MEANS)
The k-means algorithm captures the insight that each point in a cluster should be near to the center of that cluster. It works like this: first we cho ...
分类:其他好文   时间:2020-07-17 21:58:52    阅读次数:73
0436. Find Right Interval (M)
Find Right Interval (M) 题目 Given a set of intervals, for each of the interval i, check if there exists an interval j whose start point is bigger than ...
分类:其他好文   时间:2020-07-16 12:10:10    阅读次数:54
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