What is the complete list of all special characters for a SQL (I’m interested in SQL Server but other’s would be good too) LIKE clause? E.g. SQL Server: % _ [specifier] E.g. [a-z] [^specifier] ESCAPE clause E.g. %30!%%’ ESCAPE ‘!’ will evaluate 30% as true ‘ characters need to be escaped with ‘ E.g. they’re … Read more
Use something like this – or
I looked around some and didn’t find what I was after so here goes. This works fine, but not if the tree is named Elm or ELM etc… How do I make SQL case insensitive for this wild-card search? I’m using MySQL 5 and Apache.
That would have to be: Or, similar: You’re looking for something that contains “m” somewhere (SQL’s ‘%‘ operator is equivalent to regular expressions’ ‘.*‘), not something that has “m” anchored to the beginning of the string. Note: MongoDB uses regular expressions which are more powerful than “LIKE” in SQL. With regular expressions you can create any … Read more
Underscore is a wildcard for a single character. You will need to change your SQL to something like: Or you can escape the underscore
201 Use LIKE BINARY:
Effectively, the IN statement creates a series of OR statements… so Is effectively And sadly, that is the route you’ll have to take with your LIKE statements
The second (assuming you means CONTAINS, and actually put it in a valid query) should be faster, because it can use some form of index (in this case, a full text index). Of course, this form of query is only available if the column is in a full text index. If it isn’t, then only the first form is available. … Read more