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Vertica Quick Tip: Extract Just Numbers from a String of Characters

Modern Database Analytics

This blog post was authored by Jim Knicely. The easiest way to extract just the numbers from a string of characters is to simply remove any character that isn’t a number! Example:

dbadmin=> SELECT c1, regexp_replace(c1, '\D', '') FROM bunch_of_characters;
c1        | regexp_replace
-----------------+----------------
A1B2C3D4E5      | 12345
ABCDE12345      | 12345
Phone: 555-0100 | 5550100
1!2$3%4^5       | 12345
(4 rows)

Have Fun!

About the Author

Soniya Shah
Information Developer

Currently, a first year law student with a background in science and technology. Experienced technical writer, with specializations in software documentation, big data, blog development, and website development. I build user-centered content to communicate complex and technical information more easily.

I used to work for Vertica full time for about 3 years. I still work at Vertica part time while going to law school.

Update: Soniya is now doing her law internship, and no longer working at Vertica. Good luck, Soniya!

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