This tutorial shows you how to use SQL Server ALTER TABLE ADD column statement to add one or more columns to a table.

Nov 18, 2025 · Learn how to add columns to an existing table in SQL Server and Azure SQL platforms by using SQL Server Management Studio or Transact-SQL.

The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table.

This SQL Server tutorial explains how to use the ALTER TABLE statement in SQL Server (Transact-SQL) to add a column, modify a column, drop a column, rename a column or …

In Object explorer, right-click the table to which you want to add new columns and choose Design. Click the first blank cell under the last column name column and enter the name of the column, …

Dec 16, 2025 · This step by step guide – sql server: alter table add column shows how to add new columns safely, without breaking existing data or dependent objects. More importantly, it …

Aug 25, 2025 · Learn how to use SQL ALTER TABLE to add columns to existing tables. Follow examples for adding data types and default values.

Jun 6, 2025 · Learn how to use Alter Table to Add Column in SQL Server with this article that shows several scenarios of adding a column to existing table.

ALTER TABLE modifies a table definition by altering, adding, or dropping columns and constraints. ALTER TABLE also reassigns and rebuilds partitions, or disables and enables …

Jul 23, 2025 · Sometimes it might happen that at the time of table creation, we forget to add some columns to our table. We resolve this problem by using ALTER TABLE ADD command, which …