OrderlD item quantity 1 Fahita 1 Menu 1 Pepsi Item type price 1 Shawarma 2 Соса Drink 1.5 1 Water Fahita Sandwich 5 2 Coca 3 Pepsi Drink 1.5 Steak 3 Shawarma Sandwich 5 3 Fahita 1 Steak Plate 10 4 Steak Water Drink 1 water 1 The query that gives the price of the Steak Select one: All the answers are correct Select price from orderitem where item='Steak Select price from menu where item='Steak Select price from menu where item=steak Consider the table called STATION (ID, CITY, STATE, LAT N, LONG w); few rows are inserted to the table STATION: ID CITY STATE LAT_N LONG W 13 Phoenix AZ 33 112 44 Denver CO 40 105 66 Caribou МЕ 47 68 ID CITY STATE LAT_N LONG W Which query gives the the following table : 44 Denver CO 40 105 66 Caribou МЕ 47 68 Select one: Oa. SELECT * FROM STATION WHERE LAT_N > 39.7; O b. SELECT city,ID WHERE LAT N > 39.7; SELECT * FROM STATION WHERE LAT_N > 40; O d. None of these
Concepts in Designing Database
A database design is the process of data organization based on a database model. The process deals with identifying what data should be stored in a database and how data elements relate to each other.
Entity Relationship Diagram
Complex real-world applications call for large volumes of data. Therefore, it is necessary to build a great database to store data safely and coherently. The ER data model aids in the process of database design. It helps outline the structure of an organization’s database by understanding the real-world interactions of objects related to the data. For example, if a school is tasked to store student information, then analyzing the correlation between the students, subjects, and teachers would help identify how the data needs to be stored.
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