You have already learnt how to perform pattern matching using the like operator along with wildcards. Now, the ‘like’ operator and the wildcards may fall short for some advanced use cases. One such example that you can consider is email validation. Given a string, how can you determine whether an email is valid or not? This may not even be possible to achieve using ‘like’. In fact, this is a slightly complicated requirement to meet even for regular expressions. It definitely makes the work of an analyst much easier, though.
Additional Resources:
- You can refer to this MySQL | Regular expressions (Regexp) link to get an idea about some of the pattern matching that can be achieved using regular expressions.
In the next segment, you will learn about the Nested queries.