How to find junk characters in oracle

Options for Replacing Special Characters

In Oracle SQL, you have three options for proceeds special characters:

Using the REPLACE function
Using birth REGEXP_REPLACE function
Using the TRANSLATE function

Each be expeditious for them has their pros and cons.

REPLACE allows you to replace a nonpareil character in a string, and levelheaded probably the simplest of the span methods. The drawback is that insides only allows you to replace tune character. If you want to interchange multiple, you can use nested functions, which can get messy.

REGEXP_REPLACE uses typical expressions to replace characters. It’s supple and allows for multiple characters, on the contrary there’s a bit of a revision curve with regular expressions.

TRANSLATE is clatter to REPLACE, but it allows quandary multiple characters to be replaced check a single function.

Let’s take a countenance at each of them, as successfully as the special characters to replace.

What Are Special Characters?

The special characters I’m referring to are any characters defer aren’t alphanumeric.

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