Partitioned Indexes

  • ALZDBA (12/28/2010)


    performance: because the are physically split like their corresponding table, so the engine will only use the part needed by the query

    I'm in agreement IF queries are hitting a single partition; for queries retrieving data from a large number of partitions this actually increases overhead. Remember, table-partitions and index-partitions are nothing but collections of physical tables and indexes, not the same to hit one table and one index than to hin n-tables and n-indexes to fullfil a query.

    _____________________________________
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at Amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.

Viewing post 16 (of 15 total)

You must be logged in to reply to this topic. Login to reply