21 January,2011 by Tom Collins
I had to export some data from a Mysql database , for the purpose of creating a spreadsheet , which would be used for presentation purposes and also to import into a DB2 database.
Initially I considered using an ODBC connection from my laptop , I do not have ODBC drivers for mysql on my laptop. The policy of the company is to not allow new drivers installed with centralised authority .
Even without the drivers it was straightforward.
Logged into mysql and created a resultset via the following command :
Mysql>select p.page_title from page p inner join text t on p.page_latest = t.old_id and p.page_title LIKE 'db2%';
How can I get that resultset into an output file , which will be useful ?
mysql> select p.page_title,t.old_text from page p inner join text t on p.page_latest = t.old_id and p.page_title LIKE 'db2%' INTO OUTFILE '/tmp/jvtest.csv';
ERROR 1045 (28000): Access denied for user 'usertemp'"'localhost' (using password: YES)
I'd seen this error before , and related to the actual Mysql user not having access to the underlying file system. Although the Linux user account Id used to log onto the Linux server , had sufficient permissions.
Under the circumstances two methods were available:
Method 1
echo @ select p.page_title,t.old_text from page p inner join text t on p.page_latest = t.old_id and p.page_title LIKE 'db2%'@ > /tmp/test
mysql> -pmypassword -umyuser wikidb < /tmp/test > /tmp/jvtest.csv
Method 2
Use tee - this will save all output from screen
Mysql > tee /tmp/output.txt
Mysql > no teee
I used method 1 as I had more scope to format .
Ref:Jack Vamvas(http://www.dba-db2.com)
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