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Remove special characters from string on insert?

I have a field of type character varying. On insert I'd like to strip out special characters. In this particular case I'd like to strip out hyphens from a column of hyphenated strings, hyphen_field"123-456-789" from table_two and insert as "123456789" into non_hyphen_field in table_one. I'm starting with a statement of the following form:

INSERT INTO schema.table_one(var_one,var_two,non_hyphen_field)
SELECT var_one, var_two, hyphen_field
FROM schema.table_two;

What is the cleanest way to accomplish this?

over 4 years ago · Santiago Trujillo

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Accepted Answer · 2022-05-26T13:09:56.913Z

On Postgres you can use replace function.

select replace('123-456-789', '-','');

| replace   |
| :-------- |
| 123456789 |

dbfiddle here

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Remove special characters from string on insert?

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Andres GPT