SQL Data Types Quiz

EMPLOYEE Table Data Types

• The 'Name' column typically uses the VARCHAR or CHAR data type to store variable-length character strings.
• The 'Ssn' column is generally defined with the CHAR or VARCHAR data type for storing social security numbers as strings.

Salary Column Specifications

• The 'Salary' column usually has a decimal data type with specified precision and scale, allowing for values in a range suitable for currency.

Fixed-Length Character Storage

• For storing fixed-length character strings with a maximum length of 15, the CHAR(15) data type is recommended.

Ssn Column Value Addition

• Adding the value 12345 to the 'Ssn' column could result in a data type error if the column is set to only accept string values since it typically expects a formatted string.

Salary Calculation

• Inserting a value of $5(7 + 3)$ into the 'Salary' column will store the result calculated, which equals $50.

Ssn Column Data Type Violation

• Inserting a string like 'John Doe' into the 'Ssn' column would lead to a data type violation or error if the column is strictly defined to accept numerical values.

Salary Value Storage

• A value of $75000.99$ inserted into the 'Salary' column will be stored as is, provided the column supports decimal values and the appropriate precision and scale are defined.