Mysql 加载数据本地填充插入空白记录
尝试使用以下命令导入文本文件Mysql 加载数据本地填充插入空白记录,mysql,insert,load-data-infile,blank-line,Mysql,Insert,Load Data Infile,Blank Line,尝试使用以下命令导入文本文件 LOAD DATA LOCAL INFILE '/var/www/colleges.txt' INTO TABLE selections LINES TERMINATED BY '\n' SET unit=null, created=NOW(), type="college"; 表格结构 id INT Autoincremented name Varchar type Varchar unit Varchar crated datetime 但是上面的命
LOAD DATA LOCAL INFILE '/var/www/colleges.txt'
INTO TABLE selections LINES TERMINATED BY '\n'
SET unit=null, created=NOW(), type="college";
表格结构
id INT Autoincremented
name Varchar
type Varchar
unit Varchar
crated datetime
但是上面的命令正在为name
字段添加空白值
以下是我的示例文本文件:
American River College
American University
Amherst College
()您必须在
SET
子句之前,指定直接从()
中包含的文本文件映射的列列表:
LOAD DATA LOCAL INFILE '/var/www/colleges.txt'
INTO TABLE selections
LINES TERMINATED BY '\n'
-- Here, list columns from the file in ()
(name)
-- Followed by columns for which you set values
SET
unit=null,
created=NOW(),
type="college";
给定您的输入数据,这将在我的开发数据库中进行测试和工作
MariaDB [test]> select * from selections;
+----+------------------------+---------+------+---------------------+
| id | name | type | unit | created |
+----+------------------------+---------+------+---------------------+
| 1 | American River College | college | NULL | 2015-02-16 08:08:01 |
| 2 | American University | college | NULL | 2015-02-16 08:08:01 |
| 3 | Amherst College | college | NULL | 2015-02-16 08:08:01 |
+----+------------------------+---------+------+---------------------+
文档中有点模棱两可:
...snip...
[LINES
[STARTING BY 'string']
[TERMINATED BY 'string']
]
[IGNORE number LINES]
-- HERE....
[(col_name_or_user_var,...)]
[SET col_name = expr,...]