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If you have been frustrated watching DB2 pick the wrong access path when you knew exactly how the data should be accessed, you need Express Hints. In most cases, the DB2 optimizer does a tremendous job of choosing the best way to access your data. However, there are times when the optimizer has difficulty or just can not determine the best approach. That is why the Optimization Hints feature was introduced in DB2 Version 6. This facility allows the user to override the default access paths chosen by the DB2 optimizer. As implemented, however, the feature is far from easy to use; it requires the user to manually update the PLAN_TABLE and then rebind the plan or package just to determine whether the intended access path is even valid. Express Hints gives your DB2 professionals the ability to easily direct DB2 to select a desired access path.
Access Path Version to Version Comparison provides you with a series of contrasts between DB2 V6, V7, V8 and V9. We provide you with some test cases that you can run on each of your subsystems. The test cases provide you with a probable situation and a probable modification. We can then contrast the DB2 Optimizer choice for each test case before and after. The goal is to provide your DBAs with surprising results, as they will see where differences occur between releases and where they do not.
Trials provide our clients and potential clients with the opportunity to try out our products for a specified period of time. This way, you can see for yourself whether our tools will provide the value to you that they've provided to other clients. More often than not, DBAs and System Programmers find our tools so useful they hate to see the trial period come to an end. Contact our sales staff and set up a trial for your company.