What happens when a user retrieves data from a view?
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What happens when a user retrieves data from a view?
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- What restrictions can you apply when you are creating views?Until a file signature analysis is run, EnCase relies on the ______ to determine its file type. header extension database acquisition hash libraryThe database has three tables for tracking horse-riding lessons: Horse with columns: ID - primary key RegisteredName Breed Height BirthDate Student with columns: ID - primary key FirstName LastName Street City State Zip Phone EmailAddress LessonSchedule with columns: HorseID - partial primary key, foreign key references Horse(ID) StudentID - foreign key references Student(ID) LessonDateTime - partial primary key Write a SELECT statement to create a lesson schedule with the lesson date/time, horse ID, and the student's first and last names. Order the results in ascending order by lesson date/time, then by horse ID. Unassigned lesson times (student ID is NULL) should not appear in the schedule. Hint: Perform a join on the Student and LessonSchedule tables, matching the student IDs
- The database has three tables for tracking horse-riding lessons: Horse with columns: ID - primary key RegisteredName Breed Height BirthDate Student with columns: ID - primary key FirstName LastName Street City State Zip Phone EmailAddress LessonSchedule with columns: HorseID - partial primary key, foreign key references Horse(ID) StudentID - foreign key references Student(ID) LessonDateTime - partial primary key Write a SELECT statement to create a lesson schedule with the lesson date/time, horse ID, and the student's first and last names. Order the results in ascending order by lesson date/time, then by horse ID. Unassigned lesson times (student ID is NULL) should not appear in the schedule.When is it acceptable to manually create an index?Describe the technique for views to save reprogramming time.
- True or False Rather than showing multiple rows at once, a Details view lets the user see one row at a time.assume that a database has a table named Stock, with thefollowing columns:Column Name TypeTrading_Symbol nchar(10)Company_Name nchar(25)Num_Shares intPurchase_Price moneySelling_Price money Write a Select statement that returns the Trading_Symbol column and the Num_ Shares column only from the rows where Selling_Price is greater than Purchase_ Price and Num_Shares is greater than 100. The results should be sorted by the Num_Shares column in ascending order.Select statement that will return all records and fields from a table