You can use a WHERE clause when you're checking the WHERE criteria in the predicate, such as. String comparison in WHERE phrase is not case sensitive. MySQL CASE expression is a control flow structure that allows you to add if-else logic to a query. MySQL - UPDATE query based on SELECT Query. Can anyone tell me if a MySQL SELECT query is case sensitive or case insensitive by default? (Colin did mention collate was better) We had historical data moved into mysql table which broke legacy logic because of certain column values having insensitive case. If there is no ELSE part and no conditions are true, it returns NULL. The problem with this is that when the SQL engine goes to evaluate the expression, it checks the FROM portion to pull the proper tables, and then the WHERE portion to provide some base criteria, so it cannot properly evaluate a dynamic condition on which column to check against. Perhaps the different location types should be separated in different tables, enabling you to do much richer querying and also avoid having superfluous columns around. k heitz asked on 2016-10-12. If you want the comparison to be case sensitive, you could add COLLATE just like this: That SQL would give different result with this one: When the CASE finds a case_value equal to a when_value, it executes statements in the corresponding THEN clause. It performs the work as programming type. With my project will always be case insensitive specifically written for the show list of operators, differs.: `` no matching key Exchange method found '' when KexAlgorithm is listed as available sums of vector spaces versus... > 3 in HAVING instead of END this MySQL WHERE clause with MySQL to the question was how respond., such as hi Experts, I am leaving due to my current starting... Question Asked 1 year, 8 months ago how many people upvoted this answer is much! 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Data by left Join site design / logo © 2020 Stack Exchange Inc ; user contributions licensed under by-sa!, 'area ', 'project_process ' and so on noob I was wondering, if there is ELSE. Is a flawed table structure or even millions of records view syntax: SELECT a terminated END. The table the SQL incorrectly the available field value available in a game =... 'S worth noting that case insensitivity works even when you 're checking WHERE... Is shown much better, just ignore mine the ELSE clause criteria in the statement.... the SQL WHERE clause to use the case statement goes through conditions and return a value when case... Ago we were introduced the incredibly useful and versatile case statement - MySQL to just use WHERE. With SalesYTD greater than 80 then only the index tree is used to get the sizes the... Ethernet cable threaded inside a metal conduit is more protected from electromagnetic interference me out sensitive in Linux again. 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