Is it possible to search for a row or rows with particular strings containing an underscore?
Suppose I have various email addresses all containing an underscore like firstname.lastname@example.org, hj_bus@ where.com, etc.How can I search for those particular emails?
If I use a WHERE clause such as 'WHERE eMail LIKE '%_' it returns all rows. 'WHERE eMail LIKE 'gm_%' returns rows that do not contain an underscore. Can you offer any suggestions?
The underscore character is a single character wildcard in the same way the percent sign is a multi-character wildcard. To query for an underscore character you need to wrap the underscore in square brackets:
WHERE email LIKE 'gm[_]%'
If you want to search for all email addresses with a two character value then an underscore, this WHERE clause would work:
WHERE email like '__[_]%@%'
Dig deeper on Microsoft SQL Server Performance Monitoring and Tuning
Related Q&A from Denny Cherry, Contributor
Discover a tool that synchronizes two SQL Server databases allowing changes to one SQL Server database to update on the other.continue reading
Troubleshoot long running stored procedures with SQL Server Profiler by adding events to find the command with high run time.continue reading
To avoid performance problems when running multiple instances of SQL Server 2005 with Exchange on Windows SBS, refer to these expert best practices.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.