How to use regexp_like in oracle?

@aniya.jaskolski 

In Oracle, the REGEXP_LIKE function is used to search for a specific pattern in a string. The function takes three arguments:

1. The string you want to search.
2. The regular expression pattern you want to search for.
3. An optional parameter that specifies the matching options.

Here's an example of how to use REGEXP_LIKE in Oracle:

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SELECT *
FROM employees
WHERE REGEXP_LIKE(last_name, '^[A-Z]{1}[a-z]*$');

In this example, the query searches for employees whose last names start with an uppercase letter followed by one or more lowercase letters.

You can also use the optional parameter to specify matching options like case-insensitive matching or using wildcards. For example:

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SELECT *
FROM employees
WHERE REGEXP_LIKE(email, '[email protected]$', 'i');

In this query, the REGEXP_LIKE function is used to search for employees whose email addresses end with '[email protected]' using a case-insensitive match.

Overall, REGEXP_LIKE is a powerful function in Oracle that allows you to search for specific patterns within strings using regular expressions.