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The target of SQL tuning is the improvement of the existing
execution plan. The authors discuss the removal of brakes in the
execution plan. Such "brakes" or bottlenecks can be recognized by a
formal analysis of the execution plan. For this purpose no data
model knowledge is needed. This is especially beneficial for
database administrators because they are usually not or
insufficiently familiar with the data model. The book presents
numerous practical examples with this method.
The target of SQL tuning is the improvement of the existing
execution plan. The authors discuss the removal of brakes in the
execution plan. Such "brakes" or bottlenecks can be recognized by a
formal analysis of the execution plan. For this purpose no data
model knowledge is needed. This is especially beneficial for
database administrators because they are usually not or
insufficiently familiar with the data model. The book presents
numerous practical examples with this method.
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