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export field to text file from mysqldump cli / ubuntu 10

Posted on 2011-09-07
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611 Views
Last Modified: 2012-05-12
Using:
Ubuntu 10.10
mysql  Ver 14.14 Distrib 5.1.49, for debian-linux-gnu (i686) using readline 6.1
mysqldump

I need to export a field from a table into a text file and have the following format:

line 1
line 2
line 3
line n
0
Comment
Question by:_3mp3ror_
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7 Comments
 
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Expert Comment

by:jackiechen858
ID: 36497963
try
mysqldump -T/tmp/ databasename tablename -pDatabasepassword

This will create two files in /tmp/ folder:

tablename.sql the SQL query to create the table.
tablename.txt, a text file with all the data in this table.

For some reason, on my Ubuntu machine, the first file is created by user root, the second txt file is created by user mysql, so make sure mysql user have permission to the output directory set by -T ( i use /tmp/, so mysql user has enough permission.)


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Accepted Solution

by:
stalhw earned 250 total points
ID: 36498062
mysqldump won't allow you to output only one field (column)...
But the mysql CLI tools will, try something like:

mysql -e "select yourField from yourTable" -u myuser -pxxxxxxxxx mydatabase > yourdumpfile.txt
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Author Comment

by:_3mp3ror_
ID: 36498295
stalhw your method worked

mysql -e "SELECT field FROM table" --default-character-set=utf8 -u user -pxxxxxx database > dump.txt as i also had some eastern european charset

but what is the syntax needed so that I don't get the field name on the first line in the dump file ?

 
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Expert Comment

by:stalhw
ID: 36498495
I think it's  --skip-column-names
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Expert Comment

by:jackiechen858
ID: 36498499
mysql -e "SELECT field FROM table" --default-character-set=utf8 -u user -pxxxxxx | tail  -n+2  >dump.txt
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Expert Comment

by:jackiechen858
ID: 36498513
oh yeah, there is a --skip-column-names, this one is better.
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Author Closing Comment

by:_3mp3ror_
ID: 36498802
Perfect, thanks.
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