Pattern Matching : More Fun When I Was a Kid
Aaron Bertrand runs some tests to challenge an assertion that CHARINDEX is always faster at pattern matching than LEFT and LIKE.
2016-10-05
3,387 reads
charindex
2013-05-21
2,248 reads
Find the position of all occurrences of an expression within a string
This iTVF returns both the relative and the actual positions of ALL occurrences of a string within a string.
2015-05-12 (first published: 2013-03-24)
2,292 reads
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RegEx Functions IV
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Question of the Day
RegEx Functions IV
I have this data in a table in a SQL Server 2025 database:
EmailAddressID EmailAddress 7 dylan0@ADVENTURE-WORKS.COM 8 Diane1@ADVENTURE-WORKS.COMIf I run this query, which row(s) are returned?
SELECT top 10 * FROM person.EmailAddress WHERE REGEXP_LIKE(EmailAddress, '^D', 'i') AND BusinessEntityID IN (7,8)See possible answers