Hi George,
To do it incrementally is not really an option, since i have to run it
as a script during a short time-frame every night, and theres simply not
time to process the files.
The outfile is about 2 - 10 Gb every time.
The tables have about 100 - 180 columns, and to do a COALESCE would
create humongous sql-statements.
I might also have wrote it a bit ambigous in my question; I don't want
the word "nothing", I really want the field to contain nothing - as in ''.
Regards,
/Johan - Ua, Sweden
George Law wrote:
Johan,
have you thought about doing this incrementally?
ie - 25% at a time x 4
to show something for NULL, you can use the
COALESCE function.
ie - COALESCE(column,'nothing')
--
George Law
VoIP Network Developer
864-678-3161
[EMAIL PROTECTED]
MSN: [EMAIL PROTECTED]
-----Original Message-----
From: Johan Lundqvist [mailto:[EMAIL PROTECTED]
Sent: Monday, May 08, 2006 10:16 AM
To: mysql@lists.mysql.com
Subject: Outfile syntax and out of memory
Hi,
I need to extract some data to a textfile from a big database.
If I try to do like this:
mysql < queryfile.sql > outfile.txt
"outfile.txt" it looks something like:
"OrderID", "Quant", "OrdrDate", "code1", "code2"...
10021, 12, 20060412, 23, 95...
10022, 5, 20060412, , 75...
But, I never get a complete file. I get a out of memory error after a
hour or 2!!
If I instead insert the following code in queryfile.sql:
"INTO OUTFILE 'outfile.txt'"
Now my outfile.txt don't get the first row with the column names, and
any NULL values are exported as "\N".
This is a big problem, cause the import function that exist where I send
the data only accept the format I get using "mysql < queryfile.sql >
outfile.txt".
Any help??! Ideas??
Can I in any way format my output to print the column names and print
NULL values as 'nothing'??
Regards,
/Johan Lundqvist
--
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
