<result> is an arbitrary SQL expression: it can be a simple expression like a constant or column name, or also a complex SQL expression containing subqueries and, of course, nested case expressions. A case expr
RESPONSEYes,Iunderstand the scenario you’re describing.[replayofprompt]PROMPT:OKgood.Now here is the design problemImentioned.This query isn’t failsafe.The VMs are deemed innocent until proven guilty.When the conditionsofguilt aren’t met becauseofa query error or omission,the query reportsOKin...
Evaluates a list of conditions and returns one of multiple possible result expressions. TheCASEexpression has two formats: The simpleCASEexpression compares an expression to a set of simple expressions to determine the result. The searchedCASEexpression evaluates a set of Boolean expressions to determin...
With the searched CASE expression, we can have multiple WHEN conditions: SELECT [BusinessEntityID],[JobTitle],[HireDate],Seniority=CASE WHENDATEDIFF(YEAR,[HireDate],GETDATE())>10 THEN'Longer than 10 years'WHENDATEDIFF(YEAR,[HireDate],GETDATE())=10 THEN'Exactly 10 years'WHENDATEDIFF(YEAR,[...
Evaluates a list of conditions and returns one of multiple possible result expressions. TheCASEexpression has two formats: The simpleCASEexpression compares an expression to a set of simple expressions to determine the result. The searchedCASEexpression evaluates a set of Boolean expressions to determin...
PIVOTis allowed in a recursive common table expression (CTE) query. However, the query returns incorrect results when there are multiple rows per grouping.PIVOTisn't allowed in a recursive common table expression (CTE) query. An error is returned. ...
If the RESTART DATABASE command is failing because of database partition or communication failures, ensure that the following conditions are true: the database manager is up and running communication is available among all the database partitions ...
The Database Engine escalates row or page locks to table (or partition) locks if the amount of memory used by lock objects exceeds one of the following conditions:- 40% of the memory that is used by Database Engine. This is applicable only when the locks parameter of sp_configure is ...
multiple conditional expressions in a single CASE expression. When you have multiple conditional expressions in your CASE clause, the first expression that evaluates to TRUE will be the code block that is evaluated by your TSQL statement. To better understand how the CASE expression works I will ...
mode (AVAILABILITY_MODE=SYNCHRONOUS_COMMIT). Furthermore, failure conditions can trigger an automatic failover only if both the primary and secondary replicas are configured for automatic failover mode (FAILOVER_MODE=AUTOMATIC) and the secondary replica is currently synchronized with the primary replica...