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afatkulin.blogspot.com | ||
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blog.tanelpoder.com
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| | | | | Despite the title, this is actually a technical postabout Oracle, disk I/O and Exadata & Oracle In-Memory Database Optionperformance. Read on :) If a car dealertells you that this fancy new car on display goes 10 times (or 100 or 1000) faster than any of your previous ones, then either the salesman is lying or this new car is doing something radically differentfrom all the old ones. You don't just get orders of magnitude performance improvements by making small changes. Perhaps the car bends space around... | |
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dincosman.com
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| | | | | The performance issue with an SQL query was resolved by using the /*+ PARALLEL(2) */ hint, reducing execution time from 180-200 seconds to milliseconds. The decision to perform a direct read from disk to memory instead of reading blocks from disk was made by the database engine and is controlled by the hidden "_serial_direct_read" parameter.... | |
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sqlmaria.com
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| | | | | Although there have been a number of significant changes to the Oracle Database in 12c, some of my favorite new features are actually the small enhancements, designed to make your life a little eas... | |
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tonyhasler.wordpress.com
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| | | I am currently working in a team alongside a gentleman known as Roberto Rigliaco. You are unlikely to have heard of Roberto as he is not (yet) a blogger and not (yet) known on the conference circuit. Nevertheless, Roberto has done some excellent work recently analyzing the use of object statistics in partitioned tables. I... | ||
