Answers for "how to add multiple columns in sql"

add multiple field in table sql

ALTER TABLE employee
  ADD (
  	  last_name VARCHAR(50) NOT NULL,
      first_name VARCHAR(40) NOT NULL
      );

Posted by: Guest on November-05-2020

sql put two columns into one

UPDATE table1 SET column1 = (column2 || ' ' || column3)

Posted by: Guest on November-01-2021

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