Advance Praise forMySQL Stored Procedure Programming. “I didn't honestly believe Safari offers a solution that's better than e-books. It's a virtual library that. The implementation of stored procedures in MySQL a hugemilestone -- one that is expected to lead to widespread enterprise adoption ofthe already. Editorial Reviews. Book Description. Building High-Performance Web Applications in MySQL site Store; ›; site eBooks; ›; Computers & Technology.
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Read "MySQL Stored Procedure Programming Building High-Performance Web Applications in MySQL" by Guy Harrison available from Rakuten Kobo. Sign up. In MySQL Stored Procedure Programming, they putthat hard-won experience to good use. Packed with code examples and coveringeverything. MySQL Stored Procedure Programming covers a lot of ground. The book starts with a thorough introduction to stored procedures programming and functions.
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We expect that the performance of these functions will be the same or very similar. Surprisingly, that is not the case!
To measure the performance, I used the "benchmark" function to run the same function 1M times. So parsing the "IF" condition made a difference.
For MySQL 8. The optimization focuses on two areas: Dead code removal, Jump shortcut resolution.
These two optimizations are performed together, as they both are a problem involving flow analysis in the graph that represents the generated code. However, this does not explain why it executes "opening tables.
When Slow Functions Actually Make a Difference Well, if we do not plan to run one million of those stored functions, we will never even notice the difference. However, where it will make a difference is Let's say that we have a trigger on a table: every time we update that table it executes a trigger to update another field.
Remember: it does not change the result of the update as we do not really do anything inside the trigger. Stored Procedures with Output Parameters Listing 9 illustrates a stored procedure that returns a single parameter called pl. The stored procedure executes, and I then simply select the value of the parameter, which is of course our old friend 1.
Summing Up Stored Procedures From the previous examples of stored procedures, you can see that they are relatively simple to write. The heavy lifting is done on the server side, which helps to reduce the client side complexity.
Clearly, if the interface between the stored procedure caller and the server is secure, then this is also a secure way of executing server-side code. It's a short jump from this last statement to realize that stored procedures are potentially quite a secure mechanism.
The bulk of your business logic can be designed to reside in stored procedures rather than in client code. So, stored procedures provide a convenient mechanism for dividing client code and the underlying business logic. For these reasons, it's not hard to see why stored procedures are a popular technology with many financial and telecoms organizations.
Some disadvantages to stored procedures are that they are perhaps a little hard to write. Many organizations have invested heavily in writing stored procedure code for closed-source products.Books 1.
Ben Albahari. Validating Data with Triggers Conclusion 8. Continue shopping Checkout Continue shopping. Retrieving a Result Set Adopt logical, consistent naming conventions for modules and data structures STYL Using Subqueries in Complex Joins Other String Functions 9.
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