Enter the following SQL code:

1. select system_type_id, column_id, system_type_id / column_id as Calculation
   from sys.all_columns

Please try the following questions. If you need a hint, then there is a hint document attached to these questions.

1. Have a look at the Calculation column. What is wrong with it? Please correct it.

2. Please round the fractions in the Calculation column down to the next whole number (so 4.153 would round down to 4).

3. Please round the fractions up (so 4.153 would round up to 5).

4. Please round the fractions to the nearest one decimal place (so 4.153 would round up to 4.2).

5. Multiply the first field, system_type_id, by 2, and then convert it to a tiniyint. If it doesn't work, instead of converting it using CONVERT or CAST, use the functions TRY_CONVERT or TRY_CAST instead - these give a NULL if the conversion doesn't work properly.