Question

我正在将文件导入MYSQL，如下所示：

LOAD DATA LOCAL INFILE 'C:\\Users\\Justin.Mathieu\\Documents\\data.csv' into table Ingredients
fields terminated by ','
optionally enclosed by '"' 
lines terminated by '\n'
(iVendor, iName, iOrderNumber, iCaseQty, iUnitSize, iDrainSize, iUnitSoldBy, iCaseCost, iVolumeConversion, iUnitLabel, iIngredients)

以及一些导入数据的示例：

VendorName,"Apple Whole Peeled Cored Grd A Fz",61318,1,\N,\N,\N,38.17,\N,\N,\N
VendorName,"Apples- Applesauce Sweetened",10738,6,\N,\N,-1,24,\N,\N,\N
VendorName,"Applesauce Unswtn Fancy",10676,6,106,\N,-1,23.97,\N,\N,"Apples, Water, Erythorbic Acid (To Maintain Color)"
VendorName,Apron 24"X42" White Reg Wt - Dispenser ,81463,1,\N,\N,\N,9.98,\N,\N,\N
VendorName,"Artichoke Heart 40-50Cnt Quartered,     Marintated",10722,6,88,\N,-1,71.46,\N,,"Artichoke Hearts, Vegetable Oil (Soya Or Sunflower), Water, Vinegar"
VendorName,"Artichoke Heart Crse Ct",77334,6,\N,55,\N,49.16,\N,\N,\N
VendorName,"Artichoke Heart Quarters",11804,6,\N,\N,-1,62.46,\N,\N,"Artichoke Hearts, Water, Salt And Citric Acid"
VendorName,"Artichoke Quarters Mixed Cuts",D6808,6,\N,\N,\N,60.26,\N,\N,\N
VendorName,"Bacon Bit Real Ref",56188,2,\N,\N,\N,51.22,\N,\N,\N
VendorName,"Barley Pearled Dry Us #1 Standard",33050,2,\N,\N,\N,21.38,\N,\N,\N

第一个问题是使用\ N.在导入后查看我的数据库，而不是获取空值，我在iIngredients字段中得到“N”。

第二个问题是大部分行都没有导入，以下是我得到的错误示例：

164 row(s) affected, 64 warning(s): 
1262 Row 3 was truncated; it contained more data than there were input columns 
1262 Row 5 was truncated; it contained more data than there were input columns 
1262 Row 9 was truncated; it contained more data than there were input columns 
1262 Row 10 was truncated; it contained more data than there were input columns 
1262 Row 11 was truncated; it contained more data than there were input columns 
1262 Row 12 was truncated; it contained more data than there were input columns 
Records: 164  Deleted: 0  Skipped: 0  Warnings: 94

我已经验证每行都有可能包含要用“”包装的逗号的数据。

有什么想法可能会发生什么？

编辑：我能够通过对字符串行使用“”而对非字符串行使用\ N来解决\ N问题。

编辑2：在被截断的行中，iIngredients字段包含下一行的所有数据，就好像它没有检测到以“。”结尾的行的换行符一样。 / p>

Answer 1

在经过足够的涂鸦之后我就明白了。

问题在于，当我将文件转换为为空字段插入“/ N”时（在C＃中），我正在使用：

Write(rowData + Environment.NewLine);

显然MySQL真的不喜欢这样，所以我把它改成了：

Write(rowData + "\n");

这似乎运作得很好。

Answer 2

行分隔符看起来有问题，检查文件中是否为“\ n”，或者尝试在LOAD DATA命令中使用“\ r \ n”。

另外，我没有看到\ N有任何问题，它按原样运行。

Answer 3

mysql无法识别＆＃39; \ n＆＃39;换行

将空值和逗号导入MYSQL

3 个答案: