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The DROP COLUMN command is used to delete a column in an existing table. The following SQL deletes the "ContactName" column from the "Customers" table:
DROP COLUMN column_name; Code language: SQL (Structured Query Language) (sql) In this syntax: First, specify the name of the table that contains the column which you want to drop after the ALTER TABLE keywords. Second, specify the name of the column that you want to drop in the DROP COLUMN clause.
MySQL DROP COLUMN statement allows us to drop one or more columns from the MySQL table. Dropping a column deletes the data which belongs to that column.
20 Δεκ 2012 · Use ALTER TABLE with DROP COLUMN to drop a column from a table, and CHANGE or MODIFY to change a column. ALTER TABLE tbl_Country DROP COLUMN IsDeleted; ALTER TABLE tbl_Country MODIFY IsDeleted tinyint(1) NOT NULL; ALTER TABLE tbl_Country CHANGE IsDeleted IsDeleted tinyint(1) NOT NULL;
Drop a column using MySQL DROP COLUMN statement. To remove the age column from the user table, use the following statement: ALTER TABLE user DROP COLUMN age; Note that when you drop this column, the data in this column is also dropped. Let’s view all the columns in the user table with the DESC statement: DESC user;
13 Μαρ 2024 · To delete a column, use ALTER TABLE and DROP COLUMN as demonstrated below: ALTER TABLE table_name DROP COLUMN column_name; Here, table_name is the name of the table from which you want to remove a column, and column_name is the name of the column you wish to delete.
in this tutorial, you will learn how to use the SQL DROP COLUMN clause to remove one or more columns from an existing table.
