In what scenarios can the UNPIVOT function be beneficial for data transformations in SQL?

In Oracle database, if we have any field such as Job_Title field in any of our table then we can use DECODE function to sort the result based on our own numerical value. This can be done by including the following in ORDER BY clause: 1: ORDER BY DECODE(job-title,'Manager',3,Assistant',2,'Sales Rep', 1) DESC II: ORDER BY DECODE(job-title,'Manager', 3,'Assistant',2, Sales Rep', 1) ASC III I and II are correct IV I and II are incorrect ||| IV || 1

A graph G vertices represent switching centers and edges are communication lines between two centers.The bandwidth of a path in G is the bandwidth of its lowest bandwidth edge.  The edges are marked by their bandwidth. Create java program, given a diagram and two switching centers a and b, will output the maximum bandwidth of a path between a and b. The program's inputs are n (switching centers number) ande (bandwidths/edges number). Following the e lines containing bandwidth information, which includes the switching centers and integer values of their respective bandwidths, the idea is to identify the two switching centers between which the maximum bandwidth is to be determined.

What differentiates SQL from other programming languages is its ability to...

How are clustered and non-clustered indexes different in SQL?

I need help with this question for my Database Management class for SQL developer. Thank you   REP (REP_NUM, LAST_NAME, FIRST_NAME, STREET, CITY, STATE, POSTAL_CODE, COMISSION, RATE) CUSTOMER (CUSTOMER_NUM, CUSTOMER_NAME, STREET, CITY, STATE, POSTAL_CODE, BALANCE, CREDIT_LIMIT, REP_NUM) ORDERS (ORDER_NUM, ORDER_DATE, CUSTOMER_NUM) ORDER_LINE (ORDER_NUM, ITEM_NUM, NUM_ORDERED, QUOTED_PRICE) ITEM (ITEM_NUM, DESCRIPTION, ON_HAND, CATEGORY, STOREHOUSE, PRICE)   Question: List TOY category items and orders placed for them.  Report:  Item_Num, Description, Order_Num, and Order_Date

What is the significance of the CHECKSUM function in SQL, especially in data comparison scenarios?

In what scenarios is the CAST function preferred over CONVERT in SQL for type conversion?

What potential problems might arise when using non-deterministic functions in SQL?