1s2a3n4j5e6e7v - Developer IT

MySQL query problem on group by and max

- by 1s2a3n4j5e6e7v

My table structure is (id,cluster,qid,priority). I'm trying to figure out how I can display the maximum value of priority for each cluster. Say cluster 1 has priorities 100, 102, 105. I want to display the record containing 105. Please help.

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Requesting a website by client side script = Cross Side Scripting Hack. But requesting a website by

- by 1s2a3n4j5e6e7v

Generally, when we want to show the contents of some web page in the same page, we go for ajax requests. If say, I request to a web page in different domain with AJAX, it is not allowed because of the Cross side scripting error. But why is it allowed to access via a server side page. For e.g. we can use CURL in php to access any site.? Why is this feature OK for server side scripting and NOT OK for Client Side Scripting?

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Disabling Copy/Paste in a Web Page

- by 1s2a3n4j5e6e7v

How Do I disable the copy paste feature in my webpage. To be precise, I don't want my users to copy any information from my website and use them for personal purposes. The previous question on the same topic doesn't give enough explanation. The onselect and ondrag aren't working. Please help.

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Does the number of rows in mysql table matter?

- by 1s2a3n4j5e6e7v

I'm coming up with a web app which will want me to store more than 80 Lakh (8 million) rows. Will it be fine to handle those many number of rows with MySQL without having any performance degradation? Assume my RAM to be 4 GB and Infinity GB Harddisk space. Also, the main fields have been indexed.