truncate in sql means code example

Example 1: sql truncate table

-- Quick, no possible rollback
TRUNCATE TABLE my_table;
-- With rollback
DELETE FROM my_table;
COMMIT;

Example 2: sql truncate number

-- Truncate number with cast
UPDATE my_table
SET my_column = CAST(my_column AS INT)
WHERE ...;
-- or convert
UPDATE my_table
SET my_column = CONVERT(INT, my_column)
WHERE ...;