MySQL INSERT IF (custom if statements)

Question

First, here\'s the concise summary of the question:

Is it possible to run an INSERT statement conditionally? Something akin to this:

IF(         


        

Answer 1

You're probably solving the problem the wrong way.

If you're afraid two read-operations will occur at the same time and thus one will work with stale data, the solution is to use locks or transactions.

Have the query do this:

• lock table for read
• read table
• update table
• release lock