Regex Based SQL Interview Question | Postgres Regular Expressions | SQL for Analytics
In this video we will discuss a SQL interview question using regular expressions.
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script:
create table phone_numbers (num varchar(20));
insert into phone_numbers values
('1234567780'),
('2234578996'),
('+1-12244567780'),
('+32-2233567889'),
('+2-23456987312'),
('+91-9087654123'),
('+23-9085761324'),
('+11-8091013345');
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