MySQL加载数据本地内嵌仅导入一行
我们有一个包含数千条记录的CSV文件。我想通过phpmyadmin将这些行导入MySQL表。以下是使用的命令:MySQL加载数据本地内嵌仅导入一行,mysql,sql,csv,import,phpmyadmin,Mysql,Sql,Csv,Import,Phpmyadmin,我们有一个包含数千条记录的CSV文件。我想通过phpmyadmin将这些行导入MySQL表。以下是使用的命令: load data local infile '/var/www/html/deansgrads_201280.csv' into table ttu_nameslist fields terminated by ',' enclosed by '"' lines terminated by '\r\n' (firstname, middlename, lastname, city,
load data local infile '/var/www/html/deansgrads_201280.csv'
into table ttu_nameslist
fields terminated by ','
enclosed by '"'
lines terminated by '\r\n'
(firstname, middlename, lastname, city, county, state, termcode, category)
表中有一个设置为自动递增的ID字段。当我们执行这个SQL时,只有第一行被导入到表中
输入数据文件行:
"Aaron","Al","Brockery","Cookeville","Putnam","TN","201280","deanslist"
"Aaron","Dan","Mickel","Lebanon","Wilson","TN","201280","deanslist"
CREATE TABLE `ttu_nameslist` (
`id` int(11) NOT NULL,
`firstname` varchar(50) NOT NULL,
`middlename` varchar(50) NOT NULL,
`lastname` varchar(50) NOT NULL,
`city` varchar(50) NOT NULL,
`county` varchar(50) NOT NULL,
`state` varchar(2) NOT NULL,
`termcode` varchar(6) NOT NULL,
`category` varchar(10) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
表格结构:
"Aaron","Al","Brockery","Cookeville","Putnam","TN","201280","deanslist"
"Aaron","Dan","Mickel","Lebanon","Wilson","TN","201280","deanslist"
CREATE TABLE `ttu_nameslist` (
`id` int(11) NOT NULL,
`firstname` varchar(50) NOT NULL,
`middlename` varchar(50) NOT NULL,
`lastname` varchar(50) NOT NULL,
`city` varchar(50) NOT NULL,
`county` varchar(50) NOT NULL,
`state` varchar(2) NOT NULL,
`termcode` varchar(6) NOT NULL,
`category` varchar(10) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
我做错了什么?为什么它在添加一行后退出?您说ID字段具有
自动增量
属性,但CREATE TABLE
语句中没有提到它。这是问题的一部分
另一部分是那些截断警告。CSV文件中的某些行可能包含的数据太长,无法放入列中。将这些文本列的大小增加到更大的值(比如200),然后重试
您是否绝对确定CSV文件有效?(也称为每行具有相同数量的值等)。您可能应该检查这些字符串是否包含逗号(
,
),尽管这不应该是一个问题。为什么MySQL LOAD DATA INFILE命令只加载一行?
所发生的事情是,您加载第一列很好,然后当您加载第二列时,它失败了,因为它违反了唯一索引约束
MySQLLOAD DATA LOCAL infle
将在列上强制执行您的唯一索引,然后跳过任何有问题的重复行,而不做任何操作,甚至不记录警告
如何重现这种现象:
"Aaron","Al","Brockery","Cookeville","Putnam","TN","201280","deanslist"
"Aaron","Dan","Mickel","Lebanon","Wilson","TN","201280","deanslist"
CREATE TABLE `ttu_nameslist` (
`id` int(11) NOT NULL,
`firstname` varchar(50) NOT NULL,
`middlename` varchar(50) NOT NULL,
`lastname` varchar(50) NOT NULL,
`city` varchar(50) NOT NULL,
`county` varchar(50) NOT NULL,
`state` varchar(2) NOT NULL,
`termcode` varchar(6) NOT NULL,
`category` varchar(10) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
mysql> create table foo(id INT, mytext VARCHAR(255));
Query OK, 0 rows affected (0.02 sec)
mysql> alter table foo add constraint my_epic_constraint unique(mytext);
Query OK, 0 rows affected (0.02 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> create table foo(id INT, mytext VARCHAR(255));
Query OK, 0 rows affected (0.02 sec)
mysql> alter table foo add constraint my_epic_constraint unique(mytext);
Query OK, 0 rows affected (0.02 sec)
Records: 0 Duplicates: 0 Warnings: 0
1 fred
2 fred
mysql> load data local infile '/tmp/foo.txt' into table foo fields
terminated by '\t' lines terminated by '\n' (@col1,@col2)
set id=@col1, mytext=@col2;
Query OK, 1 row affected (0.01 sec)
Records: 2 Deleted: 0 Skipped: 1 Warnings: 0
"Aaron","Al","Brockery","Cookeville","Putnam","TN","201280","deanslist"
"Aaron","Dan","Mickel","Lebanon","Wilson","TN","201280","deanslist"
CREATE TABLE `ttu_nameslist` (
`id` int(11) NOT NULL,
`firstname` varchar(50) NOT NULL,
`middlename` varchar(50) NOT NULL,
`lastname` varchar(50) NOT NULL,
`city` varchar(50) NOT NULL,
`county` varchar(50) NOT NULL,
`state` varchar(2) NOT NULL,
`termcode` varchar(6) NOT NULL,
`category` varchar(10) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
我也有同样的问题,我用双引号解决了
“\r\n”而不是“\r\n”对于那些感兴趣的人,我遇到了如上所述的相同问题,但它与由赋值终止的行、主键冲突或错误的字符集无关 我在升级到MySQL 8后开始出现这个错误,我的问题是通过col_name_或_user_var选项发送的列名。最初,我在导入文件中没有使用额外的列,这不会对原始实现造成任何问题。然而,升级后,我不得不为这些列添加变量条目,以使其正常工作并导入多行(我无权在import.csv中更改这些列)。 使用以下导入文件:
FIELD_1, FIELD_2, FIELD_3, FIELD_4, FIELD_5
我必须从:
LOAD DATA INFILE 'import.csv'
INTO TABLE tableName
FIELDS TERMINATED BY ','
OPTIONALLY ENCLOSED BY '\"'
LINES TERMINATED BY '\n'
(FIELD_1, FIELD_2, FIELD_3)
致:
如果看不到一些示例数据,很难判断。显示警告是否提供了任何提示@CodeMonkey show warnings表示字段“ID”没有默认值。然后会出现一系列关于某些数据被截断的警告。ID设置为自动递增。它不应该有默认值,应该吗?向我们显示您的表模式。运行
showcreatetablettunameslist
。我把它添加到上面的帖子中。这有帮助吗?我同意缺乏自动增量。如果它尝试为每一行插入0,但由于密钥冲突,除1之外的所有行都失败了,我不会感到惊讶。这是什么把戏?真希望我知道这个问题的答案。对于我来说,自动增量似乎不是问题。对于那些正在努力解决这个问题的人来说,这解决了我的问题: