add columns to sql table code example

Example 1: sql add column

ALTER TABLE Customers
ADD Email varchar(255);

Example 2: sql server alter column

ALTER TABLE table_name 
ALTER COLUMN column_name new_data_type(size);

Example 3: alter table add column

ALTER TABLE table_name 
ADD column_name datatype;

Example 4: sql how to add a column

ALTER TABLE table_name

ADD column_name datatype;

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