Friday, August 30, 2013

[SQL Server] Efficiently Reuse Gaps in an Identity Column

  1. Efficiently Reuse Gaps in an Identity Column - SQLTeam.com

    www.sqlteam.com/article/efficiently-reuse-gaps-in-an-identity-column - Similar
    9 Feb 2010 ... This article will demonstrate an efficient way to reuse gaps in an identity column.
    Please note that this is something you normally shouldn't be ...

  2. SQL Server Forums - Article: Efficiently Reuse Gaps in an Identity ...

    www.sqlteam.com/forums/topic.asp?TOPIC_ID=139584 - Cached
    Posted - 02/09/2010 : 08:50:18 Show Profile · Visit AskSQLTeam's Homepage ·
    Reply with Quote. This article will demonstrate an efficient way to reuse gaps in ...

  3. Efficiently Reuse Gaps in an Identity Column - SQLTeam ... - Google+

    https://plus.google.com/117791377540125472005/.../ShxUNrVsjwv - Cached
    23 Jan 2013 ... Efficiently Reuse Gaps in an Identity Column - SQLTeam.com #sqlserver #sql
    http://ow.ly/h3D6f.

  4. How do I fill in identity gaps? - Ask SqlServerCentral

    ask.sqlservercentral.com/.../2844/how-do-i-fill-in-identity-gaps.html - Cached
    You can also read this blog post http://weblogs.sqlteam.com/peterl/archive/2009/
    03/10/How-to-efficiently-reuse-gaps-in-identity-column.aspx.

  5. Auto Identity Column in SQL Server : The Official Microsoft ASP ...

    forums.asp.net/t/prev/1793104 - Cached
    http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=98389. http://www.sqlteam.
    com/article/efficiently-reuse-gaps-in-an-identity-column. Reply ...

  6. id column gets biger then integer ?! : The Official Microsoft ASP ...

    forums.asp.net/p/1629312/4195217.aspx/1?Re+id+column... - Cached
    for the gaps : http://weblogs.sqlteam.com/peterl/archive/2009/03/10/How-to-
    efficiently-reuse-gaps-in-identity-column.aspx. (but be aware of ...

  7. IDENTITY (Property) (Transact-SQL) - TechNet - Microsoft

    technet.microsoft.com/en-us/library/ms186775.aspx - Cached
    Creates an identity column in a table. ... Identity columns can be used for
    generating key values. ... This can result in gaps in the identity value upon insert.
    ... Reuse of values ? For a given identity property with specific seed/increment,
    the ...

  8. IDENTITY (Property) - TechNet - Microsoft

    social.technet.microsoft.com/Forums/en-US/.../identity-property - Cached
    17 Nov 2010 ... Efficiently Reuse Gaps in an Identity Column. http://www.sqlteam.com/article/
    efficiently-reuse-gaps-in-an-identity-column. bug again what you ...

  9. Primary key incremented even when insert fails. - MSDN - Microsoft

    social.msdn.microsoft.com/Forums/sqlserver/en.../action?... - Cached
    12 Aug 2009 ... http://weblogs.sqlteam.com/peterl/archive/2009/03/10/How-to-efficiently-reuse-
    gaps-in-identity-column.aspx. Thursday, August 13, 2009 1:55 ...

  10. The HOBT: The IDENTITY Property: A Much-Maligned Construct in ...

    thehobt.blogspot.com/2009/.../identity-property-much-maligned.html - Cached
    28 Jan 2009 ... Identity columns do not serialize inserts ? custom written ... Again, I understand
    that there are some applications for which gaps simply ... Or perhaps sequencing
    functions aren't quite as efficient in other RDBMS's. ... At the same time some
    developers demanded that we carefully re-use deleted IDs in tables ...

  11. SQL Server find first gap between ID key fields - Stack Overflow

    stackoverflow.com/.../sql-server-find-first-gap-between-id-key-fields - Cached
    That's why gap reusing would be wonderful for me. ... If you have a numeric ids,
    use identities and don't worry about gaps unles you have some specific ...
    GetFirstIdInGap_2 @table SYSNAME, @column SYSNAME AS BEGIN SET
    NOCOUNT ON; ... And I guess it is much more efficient than mine, isn't it?

  12. sql - How do I get first unused ID in the table? - Stack Overflow

    stackoverflow.com/.../how-do-i-get-first-unused-id-in-the-table - Cached - Similar
    If you have multiple users, the time gap between running Quassnoi's query ...
    Real world, you'd not want to go back and re-use an ID that had already been
    used, or skipped. ... So the right thing to do is to create a sequence or identity
    column in .... How to efficiently get a random row out of a massive table?

  13. Creating a table to store sequence numbers - Beyond Relational

    beyondrelational.com/.../sqlserver-quiz-general-2010-dinesh-asanka- populating-a-table-with-default-values.aspx - Cached
    20 Oct 2010 ... Peter explained this in http://www.sqlteam.com/article/efficiently-reuse-gaps-in-an
    -identity-column. Method 2: Maintaining an another table with ...

  14. MS SQL Server :: Filling The Gap Identity Columns - BigResource

    www.bigresource.com/MS_SQL-Filling-the-gap-Identity-columns-JtvHr8Jg. html - Cached
    I do not want to re-use the already used Identity value. I just want to ... gaps in the
    sequence etc. so would it be less efficient for me to calculate the field than ...

  15. Using generators to create unique row IDs - Firebird

    www.firebirdsql.org/manual/generatorguide-rowids.html - Cached - Similar
    Can you re-use generator values? ... will likely see gaps in a per-table ID
    sequence, since generator values are spread throughout all tables. With the ?one
    for ...

  16. Mapper Configuration ? SQLAlchemy 0.9 Documentation

    docs.sqlalchemy.org/en/latest/orm/mapper_config.html - Cached
    from sqlalchemy import Table, MetaData, Column, ForeignKey, Integer, String ......
    The identity of an AddressUser object will be in terms of these two values, and is
    ... less efficient than that which would be produced by direct query construction.
    .... with a Session, it is possible to re-use the data from a previous transaction).

  17. Filling The Gap Identity Columns - Forum Array

    forumarray.com/filling-the-gap-identity-columns-821132 - Cached
    So just want to ask whats the largest number record id (identity) column can hold
    and in ASP.NET which data ... I have a column where the value is equivalent to
    my identity column's value. For an example, I ..... Reuse Numbers In Identity
    Column ..... I'm doing this for hundreds of rows so I need an efficient way to do
    that.

  18. FBI ? IT Strategic Plan, 2010-2015

    www.fbi.gov/about-us/itb/it-strategic-plan-2010-2015 - Cached - Similar
    Our customers, the agents and analysts in the field and headquarters, expect us
    to ... NGW will equip FBI users with new and efficient ways to communicate and
    .... Additional strategic gaps identified the need for additional digital forensics ...
    and for FBI's biometrics to evolve the legacy identity systems to a multi-modal ...

  19. Generate a set or sequence without loops ? part 1

    www.sqlperformance.com/2013/01/t-sql-queries/generate-a-set-1 - Cached
    16 Jan 2013 ... I'm not talking about a persisted IDENTITY column (or the new ... So there is a
    need to fill those gaps with the dates that are not present in the data. ... this is out
    there, and how tempting it might be to just re-use code you come across. .... has
    functions for generating series, that is extremely fast and efficient.

  20. [PDF] 

    ALAE: Accelerating Local Alignment with Affine Gap Exactly - VLDB ...

    vldb.org/pvldb/vol5/p1507_xiaochunyang_vldb2012.pdf - Cached
    an accurate and efficient algorithm for evaluating local-alignment ... to prune
    meaningless calculations and an algorithm for reusing ..... for the 5-th column
    must be 3, but the calculated MX (1, 5) = 1. .... Since there is an identity mapping
    be-.

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