MySQL 5.5如何使用LOAD DATA INFILE语句导入数据-编程学习网

这篇文章主要介绍了MySQL 5.5如何使用LOAD DATA INFILE语句导入数据，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

相关参数：

local 从客户端主机读取文本文件
ignore 如果你指定了这个参数，则重复的记录会被跳过
replace 如果你指定了这个参数，，则重复的记录会被覆盖掉
IGNORE number LINES 导入的时候跳过指定的前几行
例如：LOAD DATA INFILE '/tmp/test.txt' INTO TABLE test IGNORE 1 LINES;
FIELDS TERMINATED BY 指定列的分隔符，默认是\t
ENCLOSED BY 指定列的包括符，默认是空
例如：load data infile '/tmp/load_starting.txt' into table load_test fields terminated by ',' optionally enclosed by '"' lines starting by 'Neo';
ESCAPED BY 指定转义符，默认是\
例如：load data infile '/tmp/ld_t2.csv' into table ld_t2 fields terminated by ',' enclosed by '"' escaped by '|';
LINES TERMINATED BY 指定换行符，默认是\n
例如：load data infile '/tmp/ld_t5.csv' into table ld_t5 fields terminated by ',' enclosed by '"' escaped by '|' lines terminated by '\r\n';
LINES STARTING BY 指定每行开始的字符

注意：
每次执行LOAD DATA INFILE语句，都会将被导入表中的数据清空。

--导入示例
--查看导入文件文件的内容
[root@localhost fire]# cat /tmp/dept.txt
10,ACCOUNTING,NEW YORK
20,RESEARCH,DALLAS
30,SALES,CHICAGO
40,OPERATIONS,BOSTON
50,MAINTENANCE,HULUDAO

--根据字段格式创建表
mysql> CREATE TABLE `test` (
-> `deptno` int(11) NOT NULL DEFAULT '0',
-> `dname` varchar(15) NOT NULL,
-> `loc` varchar(15) NOT NULL
-> ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
Query OK, 0 rows affected (0.20 sec)

--使用root用户导入文本文件中的内容到对应的表中
mysql> use fire
Database changed
mysql> load data infile '/tmp/dept.txt' into table test charset gbk fields terminated by ',';
Query OK, 5 rows affected (0.07 sec)
Records: 5 Deleted: 0 Skipped: 0 Warnings: 0

--查询导入表中的内容
mysql> select * from test;
+--------+-------------+-----------+
| deptno | dname | loc |
+--------+-------------+-----------+
| 10 | ACCOUNTING | NEW YORK
| 20 | RESEARCH | DALLAS
| 30 | SALES | CHICAGO
| 40 | OPERATIONS | BOSTON
| 50 | MAINTENANCE | HULUDAO
+--------+-------------+-----------+
5 rows in set (0.00 sec)

--指定列名导入
load data infile '/tmp/ld_t7.csv' into table ld_t7 fields terminated by ',' enclosed by '"' (id, uname, email, age);