Home Forums SQL Server 2005 Administering Problem in avg_page_space_used_in_percent value in fragmentation RE: Problem in avg_page_space_used_in_percent value in fragmentation

  • Hi Gail,

    By mistake I have given you wrong table

    I am using below statement in sql server to reduce fragmentation

    alter index PK_JG_UserLogin on UserLogins rebuild

    but in output I always Getting after fragmentation

    Table_Name : UserLogins

    Index_Name : PK_JG_UserLogin

    avg_fragmentation_in_percent : 80

    avg_page_space_used_in_percent : 84.20311342

    Table_Name : UserLogins

    Index_Name : PK_JG_UserLogin

    avg_fragmentation_in_percent : 0

    avg_page_space_used_in_percent : 1.198418582

    As per my knowledge... After fragmentation, I required Value like

    Table_Name : UserLogins

    Index_Name : PK_JG_UserLogin

    avg_fragmentation_in_percent : 0

    avg_page_space_used_in_percent : 98.20311342

    Table_Name : UserLogins

    Index_Name : PK_JG_UserLogin

    avg_fragmentation_in_percent : 0

    avg_page_space_used_in_percent : 98.198418582

    DBCC SHOWCONTIG (UserLogins);

    ------------------------*/

    DBCC SHOWCONTIG scanning 'UserLogins' table...

    Table: 'UserLogins' (515532920); index ID: 0, database ID: 5

    TABLE level scan performed.

    - Pages Scanned................................: 30

    - Extents Scanned..............................: 7

    - Extent Switches..............................: 6

    - Avg. Pages per Extent........................: 4.3

    - Scan Density [Best Count:Actual Count].......: 57.14% [4:7]

    - Extent Scan Fragmentation ...................: 71.43%

    - Avg. Bytes Free per Page.....................: 1762.1

    - Avg. Page Density (full).....................: 78.23%

    DBCC execution completed. If DBCC printed error messages, contact your system administrator.

    ----------------------------------------------------------------

    ObjectID : 515532920

    IndexID : 2

    PercentFragment : 0

    TotalFrags : 1

    PagesPerFrag : 1

    NumPages : 1

    So, would request you please suggest me why sql is not fragment as per my understanding........because I have read some article.

    As per article when value of "avg_fragmentation_in_percent is less" is less than 10 then it will be better and when avg_page_space_used_in_percent is greater than 95 then it will be better.

    So if any concept problem please guide me.

    Regards,

    Sachin.