LIKE ‘%xxxxxx%’ https://www.brentozar.com/archive/2010/06/sargable-why-string-is-slow/ Table Valued Functions https://www.brentozar.com/blitzcache/tvf-join/ Functions in from/below Implicit Conversions (convert to different data type) Comparing the contents of 2 columns on 1 table Table Variables Table variable does not have stats and serial for updates.
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Replicate the Error Do a DR Test and change the IP address of the server. Without waiting for the IP to completely go into effect, do a Force Start of the Windows Failover Cluster Manager. The cluster will come up but the Roles will unable to be restarted. The nodes will be running. The databases... » read more
https://learn.microsoft.com/en-us/sql/t-sql/queries/with-common-table-expression-transact-sql?view=sql-server-ver16 Specifies a temporary named result set, known as a common table expression (CTE). This is derived from a simple query and defined within the execution scope of a single SELECT, INSERT, UPDATE, DELETE or MERGE statement. A Common Table Expression, also called as CTE in short form, is a temporary named result set that... » read more
Status: Windows Failover Cluster fail to start any of the Roles All nodes in the Windows Failover Cluster are up. Identified several important event IDs that are common across all SQL nodes: 1069, 1205, 1254. Probable Causes: -SQL node names and AG name are not resolving or couldn’t register in the network. please look at the... » read more