Author: abuData

Google’s F1 database for AdWords

Sunday, September 1, 2013 | | 0 |

BigData – who does not think of Google who released white papers on Bigtable, Google File System (today: Colossus) and MapReduce. These papers contained lots of ideas that influenced the development of...

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OT: Beurer Half Marathon 2011

Monday, September 19, 2011 | | 0 |

Beurer Half Marathon (+ Einstein-Marathon and other distances) took place in Ulm on 18-Sep-2011. The weather was nasty: rainy and windy – the only positive mention it was not hot. The event was again perfectly organized...

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Real World Performance Day @Frankfurt

Friday, August 26, 2011 | | 0 |

Real World Performance Day took place in Frankfurt on 25-AUG-2011. Real World Performance Day means three presenters – three roles – three screens. Tom Kyte acted as developer and showed the material available from...

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Oracle Fixed Object Statistics

Sunday, July 31, 2011 | | 0 |

Fixed objects are in-memory structures and variables inside the Oracle kernel. Fixed table names start with X$ and represent data via performance views like v$session. Performance views are used in applications (fixed tables...

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Oracle Dictionary Statistics

Saturday, July 30, 2011 | | 0 |

Statistics on Oracle-defined schemas like sys, ctxsys, dbsnmp, mdsys, etc are called dictionary statistics. Why to gather dictionary statistics Missing or wrong dictionary statistics can lead to performance issues from Oracle...

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