A LoopBack Linked Server connects back to the same SQL Server instance. I review its provider, identity and transaction restrictions first.
Measure Page Splits in SQL Server With T-SQL
To measure page splits in SQL Server, read the Page Splits/sec counter twice and subtract the first reading from the second. This post loads a table with sequential keys and another with random keys, so you can see which splits are normal and which cost you. It also names the index behind the splits and shows how a lower fill factor removes most of them.
SQL SERVER – How to Update Two Tables in One Statement?
One Statement normally updates one target table in SQL Server. I use a transaction when two changes must succeed together.
SQL SERVER – sp_server_diagnostics – The User Does Not Have Permission to Perform this Action. (297)
An AlwaysOn resource would not come online, and the cluster log showed sp_server_diagnostics failing with error 297, no permission. Here is the fix.
How to Round Up or Round Down Number in SQL Server? – Interview Question of the Week #125
How do you round up or round down a number in SQL Server? A quick answer using ROUND, CEILING and FLOOR, and how each one behaves.
SQL SERVER – AlwaysOn Join Error – Msg 1408, Level 16 – The Remote Copy of Database “SQLAUTH” is Not Recovered Far Enough to Enable Database Mirroring or to Join it to the Availability Group
I do provide consultancy services for deployments, including AlwaysOn availability group deployments. AlwaysOn Join Error.
SQL SERVER – Alternate to AGENT_DATETIME Function
This Alternate to AGENT_DATETIME converts integer date and time values without calling an msdb function. I preserve leading zeros in the time.