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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.
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;
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.
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.
Introduction to SQL DROP COLUMN statement. Sometimes, you may want to drop one or more unused column from an existing table. To do so, you use the ALTER TABLE as follows: ALTER TABLE table_name. DROP COLUMN column_name1, [DROP COLUMN column_name2]; Code language: SQL (Structured Query Language) (sql) In this syntax:
MySQL ALTER TABLE – Drop a column. To drop a column in a table, you use the ALTER TABLE DROP COLUMN statement: ALTER TABLE table_name DROP COLUMN column_name; Code language: SQL (Structured Query Language) (sql) In this syntax: First, specify the name of the table that you want to drop a column after the ALTER TABLE keywords.
