Sunday, January 25, 2015

Secrets of SQL Server Execution plan (4/5)

Secrets of SQL Server Execution plan (4/5)
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Hi guys, thanks for traveling with me along the series of post to explore the SQL server Execution Plan Secrets. For the people those who missed out some basics, no worries here you go. limitations of execution plan, some alarming signs and complex execution plans
Really we are going to see some interesting things on this post. Most of the time, while we examine the execution plan of a query which join two or more tables, we used to saw the join operators –nested loop join, hash match and merge join operator . We often not concentrate, why it is using hast match join etc. Which was prime subject of our post today, also we will see how resolve the warnings on our execution plan.
Okay, let us see some basics about this join operators before step into details.  For the people those who saw the below image and puzzled, no more such situation.

Thursday, January 22, 2015

Fixing the collation on Instance,Database and column levels

Hi dears, Many of us come across the collation issue on many levels. We will see how to resolve the issues on each level. This post will cover the fallowing collation issues.
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  • Collation issues on the Instance level.
  • Collation issues on the database level.
  • Collation issues on the table on column levels.