For string processing, the databases can not perform as good as middlewares. For example, you may see every kind of regular expression related functions equipped… Read More »MySQL Regular Expression Replace?
You may put some values which are potentially numeric in a VARCHAR column, and you would like to find them out for more operations. Unfortunately,… Read More »Regular Expression Number Pattern
Word Boundaries The usual word boundaries in regular expression is b, but MySQL takes POSIX-liked [[:<:]] and [[:>:]] as word boundaries. Now my question is… Read More »MySQL Word Boundaries
According to MySQL documentation: MySQL :: MySQL 8.0 Reference Manual :: 12.8.2 Regular Expressions. match_type may be specified with the c or i characters to… Read More »REGEXP is Case Sensitive?