2010-06-03 65 views
0

下的MySQL OUTFILE奇怪的問題(見我的回答如下。萬一離開這件事它可以幫助別人。)從FreeBSD

接下來是一系列的嘗試傾倒在新的FreeBSD框中輸入查詢到outfile中的我的網站已轉移到。如果我以我身份登錄或者以root身份登錄,結果是一樣的。我希望這種風格不是太煩人。我的評論註釋了實際的代碼和輸出。

//試圖轉儲查詢到我的主目錄

SELECT pmr.datetime_requested, 
nfo.postal_code 
FROM 
print_mailing_request pmr, 
personal_info nfo 
WHERE 
nfo.person = pmr.person AND 
pmr.datetime_requested >= "2010-01-01 00:00:00" AND 
(pmr.print_mailing = 31 OR pmr.print_mailing = 30) 
ORDER BY pmr.datetime_requested INTO OUTFILE '/usr/home/david/x'; 

ERROR 1 (HY000): Can't create/write to file '/usr/home/david/x' (Errcode: 2) 

//嘗試創建文件先用觸摸,甚至搭配chmod 077文件 //但同樣的錯誤每次

// OK,讓我們試着/ tmp目錄

SELECT pmr.datetime_requested, 
nfo.postal_code 
FROM 
print_mailing_request pmr, 
personal_info nfo 
WHERE 
nfo.person = pmr.person AND 
pmr.datetime_requested >= "2010-01-01 00:00:00" AND 
(pmr.print_mailing = 31 OR pmr.print_mailing = 30) 
ORDER BY pmr.datetime_requested INTO OUTFILE '/tmp/x'; 

Query OK, 24654 rows affected (0.78 sec) 

//讓我們看一下這個文件

less /tmp/x 
/tmp/x: No such file or directory 

//重新登錄到MySQL,並嘗試同樣的查詢再次

ERROR 1086 (HY000): File '/tmp/x' already exists 

ls /tmp 
20100325180233.gtg2010.csv  20100330094652.gtg2010.csv 
20100325180448.gtg2010.csv  2010_Q1_UNO.csv 
20100325181446.gtg2010.csv  4724.csv 
20100325181927.gtg2010.csv  aprbUfvxp 
20100326003002.gtg2010.csv  dave.txt 
20100327003002.gtg2010.csv  etr.xml 
20100328003002.gtg2010.csv  mysql.sock 
20100329003003.gtg2010.csv 

//沒有文件X。

//如果我運行查詢沒有INTO OUTFILE我看到24000+行

| 2010-04-04 13:27:09 | 33156    | 
| 2010-04-04 13:27:10 | 33156    | 
| 2010-04-04 13:30:04 | NE38 8SR    | 
| 2010-04-04 14:27:03 | 00901    | 
| 2010-04-04 14:37:04 | 75001    | 
| 2010-04-04 14:53:05 | 78640    | 
| 2010-04-04 15:15:03 | 07410    | 
| 2010-04-04 15:27:04 | 43235    | 

//所以我知道這是不是查詢...

//建議嗎?

回答

0

Doh!當我登錄到這臺機器上的mysql時,我的連接字符串中有一個IP地址。/tmp目錄至於MySQL的來講是不是我登錄到機器上......

,所以我用mysql -e如解決的問題:

mysql -h my.db.com -u usrname--password=pass db_name -e 'SELECT foo FROM bar' > /tmp/myfile.txt