Answers for "how to concatenate two columns in postgresql"

postgresql combine values in one field

SELECT movie, string_agg(actor, ', ') AS actor_list
FROM   tbl
GROUP  BY 1;

Posted by: Guest on April-06-2020

alter table add multiple columns postgresql

ALTER TABLE customer 
ADD COLUMN fax VARCHAR,
ADD COLUMN email VARCHAR;

Posted by: Guest on May-26-2020

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