Home Database Mysql Tutorial SQL导入txt以及SQL中的时间格式操作

SQL导入txt以及SQL中的时间格式操作

Jun 07, 2016 pm 04:33 PM
sql

load data local infile 路径名称 into table 表名 比如我文件的具体位置为f:\\dataset\\beijing\\xx.txt,创建的表名为p

load data local infile "路径名称" into table "表名"

比如我文件的具体位置为"f:\\dataset\\beijing\\xx.txt",创建的表名为"person",则上述指令的具体表达为:

load data local infile "f:\\dataset\\beijing\\xx.txt" into table person;

如果你的txt数据包含多行,每一行字段之间的间隔为逗号(“,”),如图所示。

SQL导入txt以及SQL中的时间格式操作

你需要在读入时指定分隔符逗号,如下图所示。

SQL导入txt以及SQL中的时间格式操作

 

查看读入的数据,如下图所示。

SQL导入txt以及SQL中的时间格式操作

see,共读入18条数据,跟txt中的文件一样。

MySQL中的日期格式化操作

常用的字符串格式化为:

年份

%Y  四位数字表示的年份

%y  两位数字表示的年份

如下图所示,获取当前系统时间并格式化显示。当输入为%Y时,显示的是四位时间2015。当输入为%y时,显示的是两位时间15。

SQL导入txt以及SQL中的时间格式操作

月份

%m  两位数字表示的月份(01,02,03,···,12)

%c    数字表示的月份(1,2,3,···,12)

%b    缩写的月份(Jan,Feb,···,Dec)

%M    月名(January,February,···,December)

如下图所示。输入%y-%M时,显示的是12-January(两位年份,月名,其中‘-’为分隔符)。输入%m时,显示为两位数字月份。输入%c时,显示为数字(一位和两位)。输入%b时,显示的为缩写的月份。

SQL导入txt以及SQL中的时间格式操作

天数

%d  两位数字的天数(01,02,···,31)

%e  数字形式的天数(1,2,,···,31)

如下图所示。当输入%e时,显示数字形式。当输入%d时,显示两位数字的天数。

SQL导入txt以及SQL中的时间格式操作

时间

%l  数字形式的小时,12小时(1,2,3,···,12)

%k  数字形式的小时,24小时(0,1,2,···,23)

%H  两位数字形式的小时,24小时

%h  两位数字形式的小时,12小时

%I,%i  两位数字形式的分(00,01,···,59)

%S,%s  两位I数字形式的秒(00,01,02,···,59)

%p  上午(AM)、下午(PM)

如下图所示。

SQL导入txt以及SQL中的时间格式操作

--------------------------------------分割线 --------------------------------------

Ubuntu 14.04下安装MySQL

《MySQL权威指南(原书第2版)》清晰中文扫描版 PDF

Ubuntu 14.04 LTS 安装 LNMP Nginx\PHP5 (PHP-FPM)\MySQL

Ubuntu 14.04下搭建MySQL主从服务器

Ubuntu 12.04 LTS 构建高可用分布式 MySQL 集群

Ubuntu 12.04下源代码安装MySQL5.6以及Python-MySQLdb

MySQL-5.5.38通用二进制安装

--------------------------------------分割线 --------------------------------------

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