• Luckily, fragmentation is a manageable problem that is resolved by re-building the indexes to reduce the fragmentation at the index or table level. (mssqltips.com)
  • Determining the tables that have high levels of fragmentation was a potentially time consuming process in the SQL Server 2000 environment because DBCC SHOWCONTIG had to be issued against the table or index. (mssqltips.com)
  • Then this data needed to be analyzed to determine which indexes required rebuilding based on your personal tolerance for fragmentation. (mssqltips.com)
  • Some DBAs use a threshold in the 90% range while other DBAs were closer to the 70% range, but it seems that DBAs agree beyond the 70% fragmentation range that the indexes should be rebuilt. (mssqltips.com)
  • This table should be considered healthy as it pertains to fragmentation because the indexes have been recently rebuilt. (mssqltips.com)
  • The sys.dm_db_index_physical_stats DMF addresses database fragmentation and can be queried directly for specific index fragmentation. (mssqltips.com)
  • This column indicates the percentage of fragmentation for the table or index. (mssqltips.com)
  • The mode is the parameter (DEFAULT, NULL, LIMITED, SAMPLED, or DETAILED) to determine the level of detail when scanning the table or index for fragmentation statistics. (mssqltips.com)
  • The output shows three entries for the table with the overall table being free of corruption, but 1 of the non clustered indexes having 16% fragmentation based on the value from the avg_fragementation_in_percent column. (mssqltips.com)
  • Unfortunately, there was and still remains little agreement on the threshold when indexes should be rebuilt. (mssqltips.com)
  • In both cases, if there are any non-clustered indexes on the table, they are rebuilt as the heap's row-ids change post rebuild or when we create a clustered index on it wherein the row-id is the clustering key. (sqlservercentral.com)
  • Market-cap indexes tended to have the highest capacity and lowest turnover because a fund tracking such an index typically owned the same percentage of each company as the index and they tended to have the lowest turnover. (msci.com)
  • Instead, we use the exposure characteristics of factor indexes directly to gauge the capacity pressure that factor index strategies may be feeling. (msci.com)
  • Dynamic Management Views (DMVs) and Functions (DMF) are a new feature in SQL Server 2005 to help gather statistical information on particular portions of SQL Server from the core database engine to new features such as the CLR or Service Broker. (mssqltips.com)
  • SQL Server uses the Index Allocation Map (IAM) pages to track and scan the data pages allocated by the table. (sqlservercentral.com)
  • If the table is a heap, SQL Server inserts it wherever enough space is available, since unlike a b-tree index, there is no logical order in heaps. (sqlservercentral.com)
  • SQL Server uses the Index Allocation Map or IAM pages to find the extents that belong to the table in question, and from there, it uses PFS pages to track the free space on the pages and stuffs the row on a page with enough room to accommodate it. (sqlservercentral.com)
  • During inserts, SQL Server has to do the hard work of finding space for the row among the data pages, unlike a clustered index where a row has a definitive location based on the clustering key, which determines where it goes. (sqlservercentral.com)
  • To fine tune the output, the query accepts 5 parameters which are database_id, object_id, index_id, partition_number and the mode as well as WHERE clause parameters as an example. (mssqltips.com)
  • Such investors may wish to gauge how much capital can be invested in funds that replicate factor indexes before their return expectations diminish so that the range of competing investments seem more attractive. (msci.com)
  • One possible approach to manage capacity is to constrain the weight of any individual stock to be within a narrow range of its weight in the parent index. (msci.com)
  • For factor indexes, the idea is to achieve the highest level of factor exposure while not taking unnecessary or concentrated positions versus the parent market-cap index. (msci.com)
  • One measure of closeness is the relative weights of individual stocks and level of turnover, as then we can gauge the capacity of factor indexes with reference to their market-cap counterparts. (msci.com)
  • The index provides an objective method of assessing self-maintenance among diverse groups of people, e.g., older adults and those with chronic illnesses, disabilities, and impairments, and of describing their health needs and outcomes. (unboundmedicine.com)
  • b To retrieve data, the desired cartridge is first loaded onto the DMF device consisting of an electrode grid used to perform retrieval functions. (nature.com)
  • Analysis of the data of the second National Epidemiologic Examination performed in Russia in 2009, found that the prevalence of permanent-tooth caries in 12-year-old Moscow children amounted to 71%, with the intensity according to the dmf index equal to 2.45. (madridge.org)
  • Spearman's correlation coefficient between de la caries dental y el body mass index and caries index in permanent dentition was 0,226, indicating a low positive correlation, and body mass Ă­ndice de masa corporal index and caries index in primary dentition was - 0,158, indicating a very low negative correlation. (bvsalud.org)
  • relationship between caries index in both dentitions and body mass index. (bvsalud.org)
  • The index is obtained by measuring the systolic blood pressure in the upper and lower extremities after the patient has been lying on his or her back for about 5 min and then repeating the measurements after the patient walks for 5 min. (unboundmedicine.com)
  • Each of these indexes is intended to measure the frequency, intensity, and the extent of dental problems and their influence on a personʼs functional, social and psychological wellbeing, as well as for expert assessment of the need for and efficacy of dental care. (madridge.org)