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Pretend that you are on the boards of the American National Standards Institute (ANSI) and the International Organization for Standards (ISO), two of the organizations who standardized SQL. You have been asked to provide input to help improve SQL to maximize its functionality, usability, and interoperability among many platforms. Which features of SQL would you keep? Which would you replace? What new features would you like to add to the language to make it more powerful?
What is an SQL injection attack? Explain how it works, and what precautions must be taken to prevent SQL injection attacks.What are two advantages of encrypting data stored in the database?
Write a perl subroutine for temperature conversion named ' convert_temp '. It should be able to handle both Fahrenheit to Celsius conversions as well as Celsius to Fahrenheit conversions.
Write SQL statement which creates stored procedure with one int input parameter. Stored procedure selects supplierId field and total of all Count field values for each group of supplierId's from Part table.
Write SQL statement which creates the stored procedure which adds new record to the Part table, and returns value of newly created PartID PK value in out parameter.
Write a query to display using the employees table the EMPLOYEE_ID, FIRST_NAME, LAST_NAME and HIRE_DATE of every employee who was hired after to 1 January, 1995.
Write the statement which creates table named Part, with Id field as an int idendity PK, a SupplierId int field, a Description string field of size 25, a Count int field, a Class string field
Write the following queries in SQL: If an employee works on every project located in Houston, then list the employees social security number and name.
Create a report using the wizard or based on an SQL query that that shows Courses that instructors are approved to teach. Show Course Number, First Name, and Last Name of Instructor.
Write given queries in SQL and relational algebra: Determine cities from which one can fly to Toronto with one change of planes, and using same type of the aircraft for both legs of trip.
Write a perl subroutine for temperature conversion named 'convert_temp'. It should be able to handle both Fahrenheit to Celsius conversions as well as Celsius to Fahrenheit conversions.
The table name will be METALS and will be used to store description of various metals. Following offers some additional direction on how table must be created.
Write SQL commands which would implement this profile. Next, write query that would list profile, profile resource name, and limit value for the new profile.
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