Answers for "insert extra columns in sql"

SQL
7

append column sql

ALTER TABLE table_name
ADD column_name datatype;

--example
ALTER TABLE Customers
ADD Email varchar(255);
Posted by: Guest on May-11-2020
1

mysql alter table add column

ALTER TABLE table ADD [COLUMN] column_name column_definition [FIRST|AFTER existing_column];
Posted by: Guest on October-06-2020

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