Viewing 15 posts - 391 through 405 (of 1,170 total)
SSDs are relatively cheap today, so why not include them in the analysis? They perform excellent as well.
Igor Micev
February 3, 2015 at 8:42 am
1. If you can allow the shrink operation then you can shrink the data file and after rebuild the indexes, because the shrink will introduce a lot of fragmentation.
2....
Igor Micev
February 3, 2015 at 12:57 am
Bhushan Kulkarni (2/1/2015)
Performance of both will be same. I tested both queries on my test database. I got same execution plan for both ISNULL and Case statement
I agree. Even if...
Igor Micev
February 2, 2015 at 1:06 am
Good to know that group by lumps the nulls.
Thanks
Igor Micev
February 2, 2015 at 12:46 am
This is something that I noticed some period ago, and it's definitely a good idea - a filter for the columns to be implemented in ssms.
Sometimes I use the red-gate...
Igor Micev
January 23, 2015 at 2:34 am
h.tobisch (1/20/2015)
10 ^38 > 8 ^21 = 2 ^63
+1
Great question. Could have considered the above in order to get the question right.
Igor Micev
January 23, 2015 at 2:09 am
GilaMonster (12/31/2014)
Igor Micev (12/30/2014)
I had 4 update statements (2 updates and 2 merges ) in one transaction and I isolated them in separate transactions.
Which means you no longer have atomicity...
Igor Micev
December 31, 2014 at 3:32 am
Thanks to all in this discussion.
I had 4 update statements (2 updates and 2 merges ) in one transaction and I isolated them in separate transactions.
On the update statements i...
Igor Micev
December 30, 2014 at 11:46 am
GilaMonster (12/30/2014)
Igor Micev (12/30/2014)
GilaMonster (12/29/2014)
Have a read through this: https://www.simple-talk.com/sql/performance/sql-server-deadlocks-by-example/
Hi Gail,
I read your article. In Reader-Writer Deadlocks, why do you move the merge statement into another SP (UpdateCustomerLatestOrderStatus ), can't...
Igor Micev
December 30, 2014 at 11:26 am
GilaMonster (12/29/2014)
Have a read through this: https://www.simple-talk.com/sql/performance/sql-server-deadlocks-by-example/
Hi Gail,
I read your article. In Reader-Writer Deadlocks, why do you move the merge statement into another SP (UpdateCustomerLatestOrderStatus ), can't you do that...
Igor Micev
December 30, 2014 at 10:31 am
GilaMonster (12/29/2014)
Igor Micev (12/29/2014)
Then, even though the isolation level is READ COMMITTED using row versions, there are sill deadlocks.
Yes, and?
I've read that read committed snapshot uses pessimistic writes, and snapshot...
Igor Micev
December 29, 2014 at 4:54 am
Igor Micev (12/29/2014)
GilaMonster (12/29/2014)
Igor Micev
December 29, 2014 at 3:35 am
GilaMonster (12/29/2014)
Igor Micev
December 29, 2014 at 3:33 am
GilaMonster (12/29/2014)
Hence you see Read Committed as the isolation...
Igor Micev
December 29, 2014 at 3:07 am
Thanks both for the replies
from the deadlock report you can see isolationlevel = "read committed (2)"
Isolation level for all databases is READ COMMITTED SNAPSHOT, and that is one of...
Igor Micev
December 29, 2014 at 2:58 am
Viewing 15 posts - 391 through 405 (of 1,170 total)