Delete command removes the rows from a table based on the condition that we provide with a WHERE clause. Truncate will actually remove all the rows from a table and there will be no data in the table after we run the truncate command.
.TRUNCATE removes all rows from a table, but the table structure, its columns, constraints, indexes and so on, remains. The counter used by an identity for new rows is reset to the seed for the column.
.You cannot use TRUNCATE TABLE on a table referenced by a FOREIGN KEY constraint. Because TRUNCATE TABLE is not logged, it cannot activate a trigger.
.TRUNCATE cannot be rolled back.
.TRUNCATE is DDL Command.
.TRUNCATE Resets identity of the table
.DELETE removes rows one at a time and records an entry in the transaction log for each deleted row.
.DELETE Can be used with or without a WHERE clause
.DELETE Activates Triggers.
.DELETE can be rolled back.
.DELETE is DML Command.
.DELETE does not reset identity of the table.