How to use the decimal() function in SQL?

The DECIMAL() function in SQL is used to create a decimal number with specified precision and scale.

The DECIMAL data type with precision p and scale s.

1. The variable “p” represents precision, which is the total number of digits including both integers and decimals.
2. “s indicates the number of decimal places”

Here is how to use it:

1. Create a decimal sequence with an accuracy of 10 and 2 decimal places.
2. Decimal number with precision of 10 digits, and 2 digits after the decimal point.
3. Use the DECIMAL() function in the CREATE TABLE statement to create a column with specified precision and scale.
4. Create a table named my_table with a column named my_column that stores decimal numbers with a precision of 10 digits, 2 of which are for decimal places.
5. Insert values with a specified precision and scale using the DECIMAL() function in the INSERT statement.
6. Add a new entry into my_table with a decimal value of 10 and 2 decimal places in my_column.
7. Use the DECIMAL() function in the SELECT statement to retrieve values with a specified precision and number of decimal places.
8. Retrieve my_column from my_table.

Please note that the DECIMAL() function is only used for defining the data type of a column or inserting specific values. Specific numerical calculations and operations can be completed using other SQL functions or operators.