I am creating a custom Data Domain using Informatica Enterprise Data Catalog and I need a regex code for a 6 character alphanumeric code where the first 3 characters are letters and the last 3 characters are alphanumeric.
I tried this but it did not work:
^[a-zA-Z]{3,}[a-zA-Z0-9]{3,}$
As said in the comments to your question, {3,}
will match the preceding block at least 3 times. {x,y}
means at least x and at most y. If you want to match exactly 3 times, you should use {3}
.
You can always test your expressions on http://regex101.com.