In a single of his blog articles, the proprietor of this website posed this towards the readers, "You are instantly calculating all of the queries that flow using your software, right?"
How can you do that? Every type of code which makes a question from the database is then a type of code that batches a counter? Or, exist tools that sit involving the application and also the DB and do that for you personally?
SQL Server Profiler is my tool of preference, only for that DB finish clearly.
It ought to be noted, to optimizing queries and gratifaction, and debugging. This isn't something to become left running constantly, as possible resource intensive.
I'm not sure precisely what Shaun was saying, however i would reckon that he needs you to employ whatever query performance monitoring facility you've for the database.
Another approach is by using wrappers for database connections inside your code. For instance, in Java, presuming you've got a DataSource that all your classes use, you are able to write your personal implementation of DataSource that utilizes a fundamental DataSource to produce Connection objects. Your DataSource should wrap individuals connections in your Connection objects, which could keep an eye on the information that flows though them.
I've got a C++ wrapper which i use for those my database work. That wrapper (in debug mode) essentially does an EXPLAIN QUERY Intend on every statement it runs. Whether it will get back an answer that the index is not in use, it Claims. Fantastic way to make certain indexes are utilized (only for debug mode)
We simply purchased a software product known as dynaTrace to get this done. It uses byte code instrumentation (MSIL within our situation since we use .Internet however it does Java too) to get this done. It essentially instruments round the techniques we decide and around various framework techniques to capture time it requires for every approach to execute.
When it comes to database calls, it monitors each call made (through ADO.Internet) and also the parameters within the call, together with the execution time. After that you can move from the DB call and walk-through the execution path this program required to obtain there. It'll show every method call (you have instrumented) within the path. It is extremely badass.
You may make use of this in many various ways but typically this is utilized in some type of load testing scenario with a few other product supplying load with the various pathways of the system. Then you definitely get a listing of the DB calls under load and may take a look at them.
You may also evaluate not only the execution of 1 call however the count of these to avoid the dying of the 1000 cuts.
For Perl, DBI::Profile.
In case your architecture is smartly designed, it ought to be simple enough to intercept all data access calls and measure query execution time. A simple method of carrying this out is to apply an element around DB calls (in case your language/framework supports aspect programming). One other way is by using a unique driver that intercepts each and every call, redirect to some real driver and measure query time execution.