LOAD DATA LOCAL INFILE不能跳過列？

Question

我已經搜索了幾個小時，但它不起作用。

我有一個總統任職的csv文件。第一行是標題。

Presidency ,President ,Wikipedia Entry,Took office ,Left office ,Party ,Portrait,Thumbnail,Home State 

我想創建只有Presidency，President和Party的關係。

$sqlquerycreate1 = "CREATE TABLE IF NOT EXISTS `sample1` (
    `Presidency` VARCHAR(30), 
    `President` VARCHAR(30), 
    `Party` VARCHAR(30) 
)"; 
mysql_query($sqlquerycreate1); 

# download the file off the internet 
$file = file_get_contents("http://localhost/sample.csv"); 
$filepath = "sample.csv"; 
file_put_contents($filepath, $file); 

# load the data into nycgrid table 
$pt11 = "LOAD DATA LOCAL INFILE "; 
$pt21 = "'C:/xampp/htdocs/test/file/sample.csv' INTO TABLE sample1(Presidency,President,@Wikipedia Entry,@Took office ,@Left office ,Party,@Portrait,@Thumbnail,@Home State) "; 
$pt31 = "FIELDS TERMINATED BY ',' ENCLOSED BY '\"' "; 
$pt41 = "LINES TERMINATED BY '\r\n' "; 
$pt51 = "IGNORE 1 LINES"; 
$sqlquerynew1 = $pt11.$pt21.$pt31.$pt41.$pt51; 
mysql_query($sqlquerynew1); 

它不起作用。該表已創建，但未加載數據。 任何想法爲什麼？謝謝。

---

mysql> LOAD DATA LOCAL INFILE 'C:/xampp/htdocs/sample.csv' INTO TABLE sample1(Pr 
esidency, President, @x, @x, @x, Party, @x, @x, @x) FIELDS TERMINATED BY ',' ENC 
LOSED BY '\"' LINES TERMINATED BY '\n' IGNORE 1 LINES; 


ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that 
corresponds to your MySQL server version for the right syntax to use near 'FIELD 
S TERMINATED BY ',' ENCLOSED BY '\"' LINES TERMINATED BY '\n' IGNORE 1 LINE' at 
line 1 

Answer 1

您的LOAD DATA語句的語法錯誤。特別是：

1. 如the manual指出：

   用戶變量被寫成@var_name，其中變量名var_name包括字母數字字符，「.」，「_」，和「$」。用戶變量名可以包含其他字符，如果你引用它作爲一個字符串或標識符（例如，@'my-var'，@"my-var"，或@`my-var`）

   因此您的命名@Wikipedia Entry，@Took office，@Left office和@Home state變量都是語法不正確。您必須刪除空格或引用變量名稱。

   但是，除非您打算在其他地方引用它們，否則不需要使用不同的變量名稱。正如the manual指出：

   LOAD DATA INFILE 'file.txt' 
       INTO TABLE t1 
       (column1, @dummy, column2, @dummy, column3); 
   

2. 的FIELDS，LINES和：

   也可以通過將其分配給用戶變量，而不是分配變量以表列丟棄的輸入值IGNORE子句應該全部爲前面的的列表。作爲the manual指出，語法是：

   LOAD DATA [LOW_PRIORITY | CONCURRENT] [LOCAL] INFILE 'file_name' 
       [REPLACE | IGNORE] 
       INTO TABLE tbl_name 
       [CHARACTER SET charset_name] 
       [{FIELDS | COLUMNS} 
        [TERMINATED BY 'string'] 
        [[OPTIONALLY] ENCLOSED BY 'char'] 
        [ESCAPED BY 'char'] 
       ] 
       [LINES 
        [STARTING BY 'string'] 
        [TERMINATED BY 'string'] 
       ] 
       [IGNORE number LINES] 
       [(col_name_or_user_var,...)] 
       [SET col_name = expr,...]

因此，你可以簡單地做：

LOAD DATA LOCAL INFILE 'C:/xampp/htdocs/test/file/sample.csv' 
    INTO TABLE sample1 
    FIELDS 
     TERMINATED BY ',' 
     ENCLOSED BY '\"' 
    LINES 
     TERMINATED BY '\r\n' 
    IGNORE 1 LINES 
    (Presidency, President, @x, @x, @x, Party, @x, @x, @x)