Forum Replies Created

Viewing 15 posts - 6,421 through 6,435 (of 7,619 total)

  • RE: Is there a way to improve this SELECT statement for performance?

    Sean Lange (8/30/2013)


    ScottPletcher (8/30/2013)


    NOLOCK can be useful, for example, for code lookup tables, such as state code lookups. A state hasn't been added since 1959, I think I'll risk...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Is there a way to improve this SELECT statement for performance?

    Sean Lange (8/30/2013)


    ScottPletcher (8/30/2013)


    Sean Lange (8/30/2013)


    ScottPletcher (8/30/2013)


    Sean Lange (8/30/2013)

    NOLOCK hints. They are NOT a performance boost.

    To me, that's not a logical claim. While NOLOCK is clearly dangerous, it DOES...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Is there a way to improve this SELECT statement for performance?

    MyDoggieJessie (8/30/2013)


    It may "bypass" the locking of the records it's ready but it does not improve performance or reduce any overhead one bit.

    LOL. That's self-contradictory -- if NOLOCK avoids...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Is there a way to improve this SELECT statement for performance?

    Sean Lange (8/30/2013)


    ScottPletcher (8/30/2013)


    Sean Lange (8/30/2013)

    NOLOCK hints. They are NOT a performance boost.

    To me, that's not a logical claim. While NOLOCK is clearly dangerous, it DOES in fact reduce...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Is there a way to sort the table after records are inserted?

    You should be able to use a correlated subquery, like so:

    SELECT

    @mystring,

    REPLACE(@mystring, name, value) AS newstring

    FROM (

    SELECT TOP...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Is there a way to improve this SELECT statement for performance?

    Here's a quick-and-dirty first try -- might or might not work. Also, you need to get rid of the DISTINCT if at all possible -- it's a big drag...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Is there a way to improve this SELECT statement for performance?

    Sean Lange (8/30/2013)

    NOLOCK hints. They are NOT a performance boost.

    To me, that's not a logical claim. While NOLOCK is clearly dangerous, it DOES in fact reduce overhead by avoiding...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: how to alter the existing id values to idetity(1,1)

    kapil_kk (8/30/2013)


    ScottPletcher (8/29/2013)


    ALTER TABLE dbo.tblemployee

    ADD ident int IDENTITY(1, 1) NOT NULL

    Edit: Added "NOT NULL"

    You are adding a new column with IDENTITY property and it works..

    The thing is that we cant...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Float WTF?!

    Float only takes 4 bytes to store if you specify a precision of 24 or less.

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Float WTF?!

    WHY IS THE LEN OF THE FLOAT 4?!

    It takes 4 bytes to store a float value (up to 24 digits).

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: sp_getrecords to get all records from a table

    DOH, just realized, the proc should check for an explicitly specified schema name and parse out the names before adding brackets:

    alter PROC [dbo].[sp_getrecords]

    (

    @TableName sysname

    )

    AS

    declare @SchemaName sysname

    set...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: sp_getrecords to get all records from a table

    Sean Lange (8/29/2013)


    ScottPletcher (8/29/2013)


    Here's an idea: let the proc get the schema name for you :-), then you don't even have to type it in at all!

    create PROC [dbo].[sp_getrecords]

    (...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Create a stored procedure on multiple databases

    I was thinking of creating a script file and calling that from a stored procedure on every database?

    Yes, that should work, although it's a lot of extra work and...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Microsoft SQL 2008 R2 Backup and Restore

    Jay Purvis (8/29/2013)


    No, it was a development server, but it is still a pain to not be able to restore system databases.

    Especially when the builds were released only a month...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

  • RE: Commit

    if my statement that I started with begin Tran errors out, will that transaction stay open till I do rollback or commit?

    Yes. Once a transaction begins, it must either...

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".

Viewing 15 posts - 6,421 through 6,435 (of 7,619 total)