![]() ![]() Mysql> create table categories(id int auto_increment primary key,name varchar(255)) īonus Read : How to Get Records Between 2 Dates in MySQL Let’s say you have the following tables mysql> create table orders3(id int auto_increment primary key,category_id int) If you try to directly DROP COLUMN with Foreign Key MySQL will throw an error. ![]() Here’s the MySQL DROP COLUMN statement to drop multiple columns from table in MySQL mysql> alter table ordersīonus Read : How to Get Records from Last 7 Days in MySQL Let’s say you want to drop multiple columns sale & category. | category | varchar(255) | YES | | NULL | |īonus Read : How to Get Records from Today in MySQL | Field | Type | Null | Key | Default | Extra | Let’s say you want to DROP COLUMN product_id mysql> alter table orders drop column product_id Let’s say you have the following table orders mysql> create table orders(order_date date, You can also drop column with Index but the index will become invalid after removal of column. You will need to manually update them to get them working again. When you remove a column from table, all stored procedures, views and triggers that refer to this column become invalid. If you want to drop multiple columns from table, mention them in separate DROP COLUMN clauses, in same statement. You can use only DROP, instead of using DROP COLUMN above. Then specify the column name in DROP COLUMN clause. In the above statement, you need to mention the table whose column you want to drop, in ALTER TABLE clause. Here’s the syntax of DROP COLUMN statement: ALTER TABLE table_name We will use MySQL DROP COLUMN query to remove existing columns from table. Here are the steps to drop column from table in MySQL. ![]() Here’s how to drop column from table in MySQL. You can easily do this using MySQL DROP COLUMN command. Sometimes you may need to delete column from database table in MySQL. ![]()
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