<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[小白学编程]]></title><description><![CDATA[记录小白学编程的历程，每日都会进行更新]]></description><link>https://blog.youkuaiyun.com/weixin_42458708</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; weixin_42458708]]></copyright><item><title><![CDATA[azkban设置重试不起作用，且有的任务一直running，无日志]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/127829825</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/127829825</guid><author>weixin_42458708</author><pubDate>Sun, 13 Nov 2022 11:18:06 +0800</pubDate><description><![CDATA[azkaban失败不重试，报错]]></description><category></category></item><item><title><![CDATA[职业规划——提升]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/124150473</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/124150473</guid><author>weixin_42458708</author><pubDate>Wed, 13 Apr 2022 16:03:20 +0800</pubDate><description><![CDATA[于职业发展而言，成长才是硬道理


]]></description><category></category></item><item><title><![CDATA[获取本周一，本周日，当月第一天，最后一天等简单方法]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/124116877</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/124116877</guid><author>weixin_42458708</author><pubDate>Tue, 12 Apr 2022 10:04:29 +0800</pubDate><description><![CDATA[可以使用现有函数获取，如下
select trunc('2022-04-12','mm');  --获取当月第一天
select last_day('2022-04-12');    -- 获取当月最后一天

select next_day('2022-04-12','MO');              			--获取下周一
select date_add(next_day('2022-04-12','MO'),6);              --获取下周日

select date_add(next_]]></description><category></category></item><item><title><![CDATA[python找不到第三方包]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/122733127</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/122733127</guid><author>weixin_42458708</author><pubDate>Fri, 28 Jan 2022 16:22:32 +0800</pubDate><description><![CDATA[pycharm在运行的时候，默认调用的是虚拟环境的python解释器，即venv (为了保证多个python版本不会冲突)，这个和系统的python环境不一样
如果在命令行中安装了第三方包，需要使用系统的python环境才能找到
1、找到系统的python环境路径

2、将系统的python环境作为解释器，不使用虚拟环境的python解释器

如果使用默认的虚拟环境的python解释器，可以直接在pycharm中安装第三方包


...]]></description><category></category></item><item><title><![CDATA[dataworks创建emr任务进行数据开发流程]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/122500090</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/122500090</guid><author>weixin_42458708</author><pubDate>Fri, 14 Jan 2022 18:39:04 +0800</pubDate><description><![CDATA[dataworks]]></description><category></category></item><item><title><![CDATA[pycharm如何安装python第三方包]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/122498684</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/122498684</guid><author>weixin_42458708</author><pubDate>Fri, 14 Jan 2022 17:19:57 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[python报错 Non-ASCII character ‘\xe5‘]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/122044710</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/122044710</guid><author>weixin_42458708</author><pubDate>Mon, 20 Dec 2021 16:37:22 +0800</pubDate><description><![CDATA[报错信息：
SyntaxError: Non-ASCII character '\xe5' in file /Users/dhc/Desktop/nxcl_code/python_learn/my.py on line 7, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details


解决方法：
python文件头部没有添加以下内容
#! user/bin/python
#- * -coding:UTF-8]]></description><category></category></item><item><title><![CDATA[This version of Kibana (v7.13.4) is incompatible with the following Elasticsearch -安装kibana启动，报兼容性问题]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/119183752</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/119183752</guid><author>weixin_42458708</author><pubDate>Wed, 28 Jul 2021 16:41:38 +0800</pubDate><description><![CDATA[安装kibana完成后，启动失败，报兼容性问题
错误描述：
This version of Kibana (v7.13.4) is incompatible with the following Elasticsearch nodes in your cluster: v7.5.1 @ 10.2.4.247:9200 (10.2.4.247)

出现原因：
我安装的kibana版本是7.13.4，es版本是7.5.1，kibana版本高于es版本，所以导致报错

解决方案：
从官网上重新下载与es版本相同的]]></description><category></category></item><item><title><![CDATA[解决element-ui的下拉框有值却无法选中的问题]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/111505695</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/111505695</guid><author>weixin_42458708</author><pubDate>Tue, 22 Dec 2020 09:56:21 +0800</pubDate><description><![CDATA[问题描述：
在使用Vue框架和element-ui开发时，下拉框遇见一个问题，在函数中改变了页面中的某个值，在函数中查看是修改成功了，但在页面中没有及时刷新改变后的值，也就是下拉框值无法选中。（踩坑踩得莫名其妙）
代码段：
&lt;el-select v-model="value" placeholder="请选择" @change="change()"&gt;
      &lt;el-option v-for="item in options" :key="item.value" :label="ite]]></description><category></category></item><item><title><![CDATA[springboot访问地址返回404]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/110630131</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/110630131</guid><author>weixin_42458708</author><pubDate>Fri, 04 Dec 2020 10:32:01 +0800</pubDate><description><![CDATA[解决办法：
需要把controller包和启动程序放在同一个目录下


]]></description><category></category></item><item><title><![CDATA[Cannot resolve plugin org.apache.maven.plugins:maven-site-plugin:3.8.2]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/110173917</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/110173917</guid><author>weixin_42458708</author><pubDate>Thu, 26 Nov 2020 10:46:45 +0800</pubDate><description><![CDATA[1、先在pom文件中添加版本号

2、如果还不行，就删除meavn仓库中的相关依赖，重新下载。方法如下
如何删除依赖并重新下载

]]></description><category></category></item><item><title><![CDATA[Could not find resource xml文件  --mybatis找不到xml映射文件]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/110073500</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/110073500</guid><author>weixin_42458708</author><pubDate>Tue, 24 Nov 2020 14:22:37 +0800</pubDate><description><![CDATA[查看原文

]]></description><category></category></item><item><title><![CDATA[ideal中如何创建多级包]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/110071908</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/110071908</guid><author>weixin_42458708</author><pubDate>Tue, 24 Nov 2020 14:16:00 +0800</pubDate><description><![CDATA[点击项目右上方的小齿轮。取消compact middle packages的勾选
之后创建包的时候，包名使用.分割，创建的包自动会变成多级的


]]></description><category></category></item><item><title><![CDATA[IDEA报错：Error : Java 不支持发行版本5]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/110061338</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/110061338</guid><author>weixin_42458708</author><pubDate>Tue, 24 Nov 2020 11:42:42 +0800</pubDate><description><![CDATA[https://blog.youkuaiyun.com/qq_39424178/article/details/100189644

]]></description><category></category></item><item><title><![CDATA[python代码--截取文件名中的日期作为表格中的列，并把这些结构相同的excel合并成一个]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/109804716</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/109804716</guid><author>weixin_42458708</author><pubDate>Thu, 19 Nov 2020 10:59:56 +0800</pubDate><description><![CDATA[import os
import pandas as pd

pwd = r'C:\Users\chenl\Desktop\睿智\需求文档\评分业务\D3分\FICO_SCORE_D3_history'
#新建文件列表，存放文件名
file_list =[]

#新建列表存放每个文件得数据
dfs = []

#os.walk 遍历目录内的各个子目录和文件
for root, dirs, files in os.walk(pwd):  # 第一个为起始路径，第二个为起始路径下的文件夹，第三个是起始路径下的文]]></description><category></category></item><item><title><![CDATA[impala查询内存限制Memory limit exceeded]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/109156933</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/109156933</guid><author>weixin_42458708</author><pubDate>Mon, 19 Oct 2020 11:04:11 +0800</pubDate><description><![CDATA[https://blog.youkuaiyun.com/oosongoo/article/details/78435779

]]></description><category></category></item><item><title><![CDATA[linux命令--文件中字符串定位]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/109156901</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/109156901</guid><author>weixin_42458708</author><pubDate>Mon, 19 Oct 2020 11:03:19 +0800</pubDate><description><![CDATA[1.命令模式下[:]
2./需要查询的内容—回车
3.通过点击[n]键定位内容位置

]]></description><category></category></item><item><title><![CDATA[kafka常用命令]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/108997928</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/108997928</guid><author>weixin_42458708</author><pubDate>Sat, 10 Oct 2020 15:25:34 +0800</pubDate><description><![CDATA[查看topic信息：
bin/kafka-topics.sh --list --bootstrap-server common1:9092
查看topic内容：
bin/kafka-console-consumer.sh --bootstrap-server common1:9092 --topic hbcs_db --from-beginning
创建topic:
bin/kafka-topics.sh --create --bootstrap-server common1:9092 --topic ct]]></description><category></category></item><item><title><![CDATA[hive中not in函数的坑]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/108977975</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/108977975</guid><author>weixin_42458708</author><pubDate>Fri, 09 Oct 2020 14:31:51 +0800</pubDate><description><![CDATA[not in ()   --括号中是不为Null的字符串，但是最后得到的结果不包含Null
原因：
上述语句返回的结果是null，而不是true，not in 只会筛选出结果是true的


]]></description><category></category></item><item><title><![CDATA[新增字段后，旧分区无法更新该列的值（全为Null）]]></title><link>https://blog.youkuaiyun.com/weixin_42458708/article/details/108977931</link><guid>https://blog.youkuaiyun.com/weixin_42458708/article/details/108977931</guid><author>weixin_42458708</author><pubDate>Fri, 09 Oct 2020 14:24:50 +0800</pubDate><description><![CDATA[解决方案：使用cascade(级联)
alter table 表名 add columns (列名 类型) cascade

使用cascade不仅该表新分区的表结构，也改变旧分区的表结构

]]></description><category></category></item></channel></rss>