truncate in sql code example
Example 1: query to empty table data in sql server
TRUNCATE TABLE table_name;
Example 2: sql truncate table
TRUNCATE TABLE my_table;
DELETE FROM my_table;
COMMIT;
Example 3: truncate table
TRUNCATE TABLE table;
Example 4: sql truncate number
UPDATE my_table
SET my_column = CAST(my_column AS INT)
WHERE ...;
UPDATE my_table
SET my_column = CONVERT(INT, my_column)
WHERE ...;
Example 5: what is truncate in sql
DELETE -
-DML COMMAND
-Delete Rows from the table one by one
-We can use where clause with Delete to delete single row
-Delete is slower than truncate
-ROLLBACK is possible with DELETE
DROP-
-DDL COMMAND
-Delete the entire structure or schema
-We can't use where clause with drop
-Drop is slower than DELETE & TRUNCATE
-ROLLBACK IS NOT POSSIBLE WITH DROP
TRUNCATE-
-DDL COMMAND
-Truncate deletes rows at a one goal
-We can't use where clause with Truncate
-Truncate faster than both DELETE & DROP
-Rollback is not possible with Truncate