SQL Truncate and Delete command :
Both SQL truncate and Delete commands are used for delete all records from a table.
Difference between SQL Truncate and SQL Delete Command :
| Truncate Command | Delete Command |
| 1- The Truncate command is a DDL(Data Definition Language) command. | Delete command is a DML(Data Manipulation Language) command. |
| 2- Truncate command is used to delete all the data from table. | Delete command can delete a specific row of table and also delete all data form. |
| 3- Where clause is not used in Truncate command | Where clause is used in Delete command. |
| 4- Truncate command is delete all data from table at a time. | Delete command can delete a row where the WHERE clause fulfill the condition. |
| 5- Data delete by using Truncate command cannot be rollback | Data is deleted by using Delete command can rollback. |
Example : All the data are deleted from 'StudentDetails' Table by using below statement truncate table StudentDetails; | Example : 1- To delete a specific record or row of table you can use following statement delete from StudentDetails where studentid=100; Note - you can select any field in table which is uniquely defined a row. 2- To delete all records from StudentDetails table by using delete command, delete from StudentDetails; |
