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GeneralRe: TSQL, Order by case, and I need to order by version Pin
jkirkerx23-Mar-23 9:03
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QuestionSQL where clause variability up against coding standards Pin
Brian L Hughes10-Mar-23 15:59
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AnswerRe: SQL where clause variability up against coding standards Pin
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AnswerRe: SQL where clause variability up against coding standards Pin
jschell13-Mar-23 6:56
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AnswerRe: SQL where clause variability up against coding standards Pin
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GeneralRe: SQL where clause variability up against coding standards Pin
Brian L Hughes23-Mar-23 14:52
Brian L Hughes23-Mar-23 14:52 
GeneralRe: SQL where clause variability up against coding standards Pin
jsc4227-Mar-23 23:00
professionaljsc4227-Mar-23 23:00 
The phrase you are looking for is 'short circuiting'.

https://stackoverflow.com/questions/789231/is-the-sql-where-clause-short-circuit-evaluated[^] quotes an SQL standard that says
ANSI SQL Draft 2003 5WD-01-Framework-2003-09.pdf

6.3.3.3 Rule evaluation order

[...].
Where the precedence is not determined by the Formats or by parentheses, effective evaluation of expressions is generally performed from left to right. However, it is implementation-dependent whether expressions are actually evaluated left to right, particularly when operands or operators might cause conditions to be raised or if the results of the expressions can be determined without completely evaluating all parts of the expression.

I have not found any specific answer for MySql but IIRC MySql gives you a choice of engines so it might depend on the engine.

The answer for MS SQL SERVER (according to Understanding T-SQL Expression Short-Circuiting – SQLServerCentral[^]) is that short circuiting does happen (but that is specific to that one environment).

It is easy to test. If you have a WHERE clause like
SQL
WHERE NULL = NULL OR 1/0 = 1
then it will deliver TRUE if short circuiting is implemented and throw an error (trying to divide by zero) if not implemented.
GeneralRe: SQL where clause variability up against coding standards Pin
jschell28-Mar-23 6:23
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QuestionCode: 1292 SQL State: 22007 --- Incorrect datetime value Pin
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QuestionEF Core 6 Question Pin
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Questionexecute an update  using --> "Exec sp_executesql @Sql1" Pin
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