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MySQL query to load data from file

Posted on 2014-01-27
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Last Modified: 2014-02-03
Hi,
I have the following mysql query written in a java spring application to load data from file
into the table :

"LOAD DATA LOCAL INFILE '"+ dumpFile.replace("\\", "\\\\") +
                        "' REPLACE INTO TABLE "+ table
                        +" FIELDS TERMINATED BY '\\t' LINES TERMINATED BY '\\n'"+
                        " (origin, destination, price, dep_date, arrival_date, supplier, search_type)";

Now the table structure to which the data is being loaded have an extra column called key.
And that extra column is key = origin#destination#dep_date
but if search_type='R'
then key = origin#destination#dep_date#arrival_date

Now i need to insert this key too.
How do i modify my query to do this ?

Thanks
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Question by:Rohit Bajaj
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Accepted Solution

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Guy Hengel [angelIII / a3] earned 2000 total points
ID: 39814304
you add this expression at the end of your statement:
SET key = CONCAT(origin, '#', destination ,'#', dep_date) 

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references:
http://dev.mysql.com/doc/refman/5.1/en/load-data.html
http://dev.mysql.com/doc/refman/5.1/en/string-functions.html#function_concat

hope this helps
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