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Dubelewskyj Oleksandr
475 · 0% · 81

Dubelewskyj Oleksandr's Home

My name is Dubelewskyj Oleksandr.
  • Question of the month December 2012 - Why is last comma ignored in CREATE TABLE statement?

    Dubelewskyj Oleksandr Commented 2 Years ago through Blogs
    To analyse a reason for such behaviour, I have tried to use native DOM parser and see how it be processed. I have realized, that comma is included into statement ColumnDefinition. I think comma is kind of split char separator (last empty element is ig...
    Madhivanan JR
    3 · 40% · 12924
  • SSIS and Stored Procedures with Temp Tables in SQL 2012

    Dubelewskyj Oleksandr Commented 2 Years ago through Blogs
    Very helpful, thanks. But how can we handle such kind of logic? IF @a=0 create table #SSISTest ( c1 int , c2 nvarchar(100)) ELSE create table #SSISTest ( c1 nvarchar(100), c2 nvarchar(100))...
    Chintak Chhapia
    40 · 5% · 1470
  • Different ways to alias a column

    Dubelewskyj Oleksandr Commented 2 Years ago through Blogs
    Following methods work with constants only: 1.number 1.number, 1."number" 1.'number' If you try to do this, select P.Product_Id.[number] from [Product] P you will get an error "Cannot call methods on {your column datatyp...
    Madhivanan JR
    3 · 40% · 12924
  • How Index_id are generated...

    Dubelewskyj Oleksandr learned 2 Years ago through Blogs
    ...
    Chintak Chhapia
    40 · 5% · 1470
  • Another good reason to avoid using IN clause in your TSQL Queries

    Dubelewskyj Oleksandr incorrect 2 Years ago through Just Learned
    Found another good reason to avoid using IN clause in your TSQL Queries. See the example below: <pre style="font-family:arial;font-size:12px;border:1px dashed #CCCCCC;width:99%;height:auto;overflow:auto;background:#f0f0f0;;background-image:URL(http...
    satyajitcse
    126 · 1% · 402
  • Using WITH to create a series of data

    Dubelewskyj Oleksandr Commented 2 Years ago through Just Learned
    Let us compare recursion with CROSS JOIN numbers generation method : CTE: CPU time = 93 ms, elapsed time = 3933 ms. CROSS JOIN query looks like: SELECT * FROM ( SELECT ROW_NUMBER() OVER(ORDER BY (SELECT 1)) Num FROM sys.objects O...
    dsorokin
    625 · 0% · 57
  • #0199-SQL Server-Backup compression-Single Use & Default setting

    Dubelewskyj Oleksandr Commented 2 Years ago through Blogs
    It is another tool in toolbox. Why do not compress by default? Because you can create backups in work hours. You can back up to another disk, but CPU in this situation is going to be higher. As additional tip: compressed backup is still bigger then...
    Nakul Vachhrajani
    4 · 36% · 11624
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