大约有 1,400 项符合查询结果（耗时：0.0271秒） [XML]
Is there a way to 'uniq' by column?
I have a .csv file like this:
8 Answers
8
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常用Linux命令详解（持续更新） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...kedacom 删除用户
二、文件与目录的操作
1. 列出文件列表的ls命令（详解）
ls(list)命令用来显示当前目录中的文件和子目录列表。配合参数的使用，能以不同的方式显示目录内容。范例如下:
显示当前目录的内容
[root@KEDA...
How to show the last queries executed on MySQL?
... Great UI design. Anyway, MySQL log tables are actually using CSV engine so you can do all that FlipMcF said in the answer about enabling logging into general_log table, and have tail -f of general_log like this: tail -f /var/lib/mysql/mysql/general_log.CSV
– user1...
实战低成本服务器搭建千万级数据采集系统 - 更多技术 - 清泛网 - 专注C/C++...
...器：E5200 双核 2.5G cpu， 4 G DDR3 1333内存，硬盘 500G SATA 7200转硬盘。数据库为mysql。在这样的条件下我们能否实现这个系统目标？当然如果有更好的硬件不是这个文章阐述的内容。现通过采集、存储来说明一下如何实现：
一、采集...
Batch File; List files in directory, only filenames?
...983\Sub_dir_001\file_0004.docx
G:\SO_en-EN\Q23228983\Sub_dir_001\file_0005.csv
G:\SO_en-EN\Q23228983\Sub_dir_001\file_0006.odt
For loop get path and name:
In command line:
for /f tokens^=* %i in ('where .:*')do @echo/ Path: %~dpi ^| Name: %~nxi
In bat/cmd file:
@echo off
for /f tokens^=* ...
Generate sql insert script from excel worksheet
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Depending on the database, you can export to CSV and then use an import method.
MySQL - http://dev.mysql.com/doc/refman/5.1/en/load-data.html
PostgreSQL - http://www.postgresql.org/docs/8.2/static/sql-copy.html
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How to display pandas DataFrame of floats using a format string for columns?
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I like using this approach before calling df.to_csv() to make sure all the columns in my .csv file have the same "digit width." Thanks!
– jeschwar
Oct 25 '18 at 15:44
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$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'
...ata was transported. Consider: "curl -k -L -X POST -H 'Content-Type: text/csv' --data-binary \@sample.csv 'test-script.php?test=12345'" The value "test" populates $_GET even though the method is POST.
– txyoji
Jun 1 '16 at 20:30
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What is the difference between loose coupling and tight coupling in the object oriented paradigm?
... but please bear with me.
Practical Examples of Coupling in When Coding
CSV/JSON/DB Examples: If somebody wants their output in a CSV file rather than JSON etc., or if you want to switch from MySQL to PostGreSQL you should be able to make those changes extremely easily in your code, without havin...
Get MIME type from filename extension
...nsions even, like .docx and .xlsx and other important web extensions like .csv, .swf, and .air.
– Samuel Neff
Jan 2 '13 at 4:52
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