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To delete a column in SQL, we use the ALTER TABLE command to change the table's structure with the DROP keyword to delete the specific column.

The DROP COLUMN command is used to delete a column in an existing table.

You can delete columns using Transact-SQL in SSMS, Azure Data Studio, or command-line tools such as the sqlcmd utility.

Delete multiple records To remove multiple rows from a table, you can use the IN operator, for instance: DELETE FROM birthdays WHERE id IN (1, 3, 5); This query will delete all rows with ids equal to 1, 3, 5 from the Birthdays table.

SQL Server: Delete Columns of a Table Syntax: ALTER TABLE [schema_name.] table_name DROP column column_name1, column_name2,... ... ALTER TABLE dbo. Employee DROP COLUMN Address; The following deletes multiple columns of the Employee table. Example: DROP Columns. ALTER TABLE dbo. Employee DROP COLUMN Address, Phone, Email;

To remove several columns, select the columns by using Ctrl + Click or Shift + Click. The columns can be contiguous or discontiguous. To remove all columns except the selected column, select one or more columns, and then select Remove Other Columns.

To remove several columns, select the columns by using Ctrl + Click or Shift + Click. The columns can be contiguous or discontiguous. To remove all columns except the selected column, select one or more columns, and then select Remove Other Columns.

Right-click the column you want to delete and choose Delete Column from the shortcut menu. If the column participates in a relationship (FOREIGN KEY or PRIMARY KEY), a message prompts you to confirm the deletion of the selected columns and their relationships. Choose Yes.