create new column sql code example

Example 1: sql add column

ALTER TABLE Customers
ADD Email varchar(255);

Example 2: append column sql

ALTER TABLE table_name
ADD column_name datatype;

--example
ALTER TABLE Customers
ADD Email varchar(255);

Example 3: create column sql server

ALTER TABLE table_name
ADD column_name datatype;

Example 4: how to make new column in sql

<?php
 
    echo str_replace("john", "jack", "hello i am john"); 
 
?>

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Sql Example

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