Select IF(lastname='clark','Correct',''Incorrect'), firstname from namefile;
You need to do the checking in your script.
For example in bash:
RESULT=`echo "select count(*) from manefile where lastname='clark'" | mysql database`
if [ "$RESULT" = "0" ] ; then
echo "insert into namefile .......
else
echo "update namefile ......
fi
Mike Tuller wrote:
I have posted this question a few times, and have not seen the answer that I need.
I have a shell script, that gathers information from systems, and I want that info to be entered into a database. I want it to check first to see if the data is already entered, and if not, add it. If it has already been entered, then update the record.
I would think that some type of if/else statement would work, but I can't get the IF statement http://www.mysql.com/doc/en/IF_Statement.html to work correctly in MySql.
Here is what I have:
"IF SELECT * FROM hardware_assets WHERE ethernet_address='$ethernet_address' IS NULL\ THEN INSERT into hardware_assets (ethernet_address) VALUES ($ethernet_address)\ ELSE\ UPDATE hardware_assets SET operating_system='10.3.3'\ END IF;"
I get back that I have an error in my SQL syntax. $ethernet_address is set, so that is not my problem.
Does anyone know a way to go about this in SQL, or in a shell script? I don't want to do it in Perl or PHP.
Thanks, Mike
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