![]() Let's understand the ALTER TABEL ADD COLUMN in SQL with examples. To add more than one column in an existing table, use the following syntax: ALTER TABLE Table_Name ADD (Column_Name1 Data_Type, Column_Name2 Data_Type) The above syntax is used to add a column in an existing table, and allows the users to add only a single field in the table. Syntax of ALTER TABLE ADD COLUMN statement in SQL ALTER TABLE Table_Name ADD Column_Name Data_Type In such situation, rather than creating a new table, you can add a column in an existing table using ADD keyword. ![]() This is used when you need to add columns to the existing table. The ALTER TABLE statement also permits the user to rename the existing table. The ALTER TABLE statement also permits users to add or drop the SQL constraints on the existing tables in the SQL. All these operations are allowed only while using the ALTER TABLE statement. In Structured Query Language, if you want to add columns in an existing table, then modify the table, or delete columns from the table. ![]() SQL Tutorial SQL Tutorial SQL Introduction SQL Syntax SQL Data Types SQL OPERATORS SQL COMMANDS SQL Queries SQL Database SQL Create Database SQL DROP Database SQL SELECT Database SQL Table SQL TABLE SQL CREATE TABLE SQL COPY TABLE SQL ALTER TABLE SQL DELETE SQL TRUNCATE TABLE SQL DROP TABLE SQL UPDATE TABLE SQL INSERT TABLE SQL SELECT SQL SELECT Statement SQL SELECT WHERE Clause SQL SELECT IN Operator SQL BETWEEN Operator SQL SELECT BETWEEN Operator SQL SELECT AND Operator SQL SELECT OR Operator SQL SELECT LIKE Operator SQL SELECT DISTINCT SQL SELECT SUM SQL SELECT MAX SQL SELECT MIN SQL SELECT AVG SQL Clause SQL WHERE Clause SQL GROUP BY CLAUSE SQL ORDER BY Clause SQL HAVING Clause SQL INSERT SQL INSERT Statement SQL INSERT INTO Statement SQL INSERT INTO Values SQL INSERT INTO SELECT SQL Insert multiple rows SQL JOIN SQL JOIN SQL Inner Join SQL Left Join SQL Right Join SQL Full Join SQL CROSS Join SQL OPERATOR SQL Comparison SQL LOGICAL Operator SQL Cast Operator SQL Arithmetic Difference SQL vs NOSQL WHERE vs HAVING DELETE vs DROP GROUP BY vs ORDER BY DROP vs TRUNCATE SQL IN vs SQL EXISTS Difference between Delete, Drop and Truncate in SQL MISC SQL SubQuery SQL CASE Commit and Rollback in SQL Pattern Matching in SQL DDL Commands in SQL DML Commands in SQL Types of SQL Commands SQL COUNT SQL Primary Key SQL FOREIGN KEY SET Operators in SQL Check Constraint in SQL SQL EXCEPT SQL VIEW SQL WHERE Statement SQL CRUD Operation Where Condition in SQL TCL Commands in SQL Types of SQL JOINS SQL Nth Highest Salary SQL NOT OPERATOR SQL UNION ALL SQL INTERSECT SQL Data Definition Language SQL Data Manipulation Language SQL Data Control Language SQL CONSTRAINTS SQL Aggregate Operators SQL KEYS Codd’s Rules in SQL What is SQL Injection? Trigger In SQL SQL WHERE Multiple Conditions Truncate function in SQL SQL Formatter WEB SQL SQL Auto Increment Save Point in SQL space() function in SQL SQL Aggregate Functions SQL Topological Sorting SQL Injection SQL Cloning Tables SQL Aliases SQL Handling Duplicate Update Query in SQL Grant Command in SQL SQL SET Keyword How To How to use the BETWEEN operator in SQL How To Use INNER JOIN In SQL How to use LIKE in SQL How to use HAVING Clause in SQL How to use GROUP BY Clause in SQL How To Remove Duplicates In SQL How To Delete A Row In SQL How to add column in table in SQL ? How to drop a column in SQL? How to create a database in SQL? How to use COUNT in SQL? How to Create Temporary Table in SQL? How to Add Foreign Key in SQL? How to Add Comments in SQL? How To Use Group By Clause In SQL How To Use Having Clause In SQL How To Delete Column In Table How To Compare Date In SQL ![]()
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