Answer:
Correct answer is Shared Resource.
Explanation:
The "Ctrl" key is the answer.
File management systems are vital! For example, when you are developing a website, having a good file management system is critical for successful development.
Each file needs a corresponding folder where it can belong. When you are working on developing a website, you will be extracting files in your code from a certain directory. It's because of a good file management system that this is possible! =)
Answer:
Hi!
The correct answer is B.
Explanation:
This sentence SELECT * FROM customers JOIN orders ON (customer#) selects all the columns of both customers and orders and joins by the name of the column customer.
A and B options have syntactic problems:
- A and C: Same alias name for multiple tables.
- A and C: Selected columns are ambiguous.
- C: refers to an alias not declared on the FROM sentence.
a) SELECT c.customer#, order#, orderdate, shipdate(omits aliases) FROM customers c NATURAL JOIN orders c(same aliases definiton);
c) SELECT c.customer#, order#, orderdate, shipdate(omits aliases) FROM customers c, orders c(same aliases definiton) WHERE c.customer# = o.customer#(o not declared);
