mysql - 将 CSV 加载到 MySQL Workbench 表中

Question

这是原始 csv 的片段(来自 Quandl):

Date,Open,High,Low,Close,Volume_BTC,Volume_Dollar,Weighted_Price
13/02/2014,650.04,660,645.07,645.24,4027.229102,2628148.177,652.5946528
12/02/2014,677,685.19,631.58,651.99,15511.78726,10224606.46,659.1507667

这是我正在尝试的 SQL 代码，我已经尝试了很多排列:

load data local infile '/../BITSTAMPUSD.csv' 
into table test.BTC  
CHARACTER SET utf8
FIELDS TERMINATED BY ','
enclosed by ""
LINES TERMINATED BY '\n'
IGNORE 1 LINES;

这是我遇到的错误:

1 row(s) affected, 8 warning(s): 1265 Data truncated for column 'Date' at row 1 1265 Data truncated for column 'Open' at row 1 1265 Data truncated for column 'High' at row 1 1265 Data truncated for column 'Low' at row 1 1265 Data truncated for column 'Close' at row 1 1265 Data truncated for column 'Volume_BTC' at row 1 1265 Data truncated for column 'Volume_Dollar' at row 1 1265 Data truncated for column 'Weighted_Price' at row 1 Records: 1  Deleted: 0  Skipped: 0  Warnings: 8

这是我用来生成表格的代码:

CREATE TABLE BTC(
    Date DATE,  
    Open FLOAT,
    High FLOAT,
    Low FLOAT,
    Close FLOAT,    
    Volume_BTC FLOAT,
    Volume_Dollar FLOAT,
    Weighted_Price FLOAT
)

一段时间以来，我一直在努力解决这个问题，非常感谢您的帮助。

更新:我已经尝试了一些建议，但仍然没有解决。我怀疑它与终止的线路有关。我使用的是 Mac，这很重要。 '/n' 是否正确？

Answer 1

您可以在导入字段时使用 str_to_date 转换字段，如本示例中最后两行添加到您的代码中:

load data local infile '/../BITSTAMPUSD.csv' 
into table BTC  
CHARACTER SET utf8
FIELDS TERMINATED BY ','
enclosed by ""
LINES TERMINATED BY '\r'
IGNORE 1 LINES
(@date,Open,High,Low,Close,Volume_BTC,Volume_Dollar,Weighted_Price)
SET `Date` = DATE_FORMAT(STR_TO_DATE(@date, '%d/%m/%Y'), '%Y/%m/%d');

对于 Mac，我还认为您需要使用 '\r' 来终止行。

我确实尝试创建您的表并导入一个包含您的数据的文件，它与上面的“加载数据”查询一起工作得很好。所以线路终止可能是唯一缺少的东西......