Answer:
This has happened many times. I am quite close to my friends. I once asked for making a wood baked Pizza at one of my friends’ houses. Unfortunately. He didn’t have the setup. I was feeling bad as well. However, to add to my relief, he didn’t say he will not make. He also didn’t say he didn’t have the oven. And those double negatives made me happy as I didn’t wanted my friend to take this pain as he had to give an exam after 2 days. However, he even didn’t said he will not order for it. And that double negative confirmed for us a pack of two wood baked pizzas with fountain Pepsi, an hour later. And I was very happy as my friend was able to fulfill the promise.
On TV as well, I have heard a lot of double negatives during NBA matches, and especially on the radio. However, I must say double negatives sometimes happen as certain people are very sensitive, they do not ever want to say no.
Explanation:
Please check the answer.
Answer:
SELECT Count(order_invoice) as number_of_invoices, Max(order_invoice) as maximum_invoice, Min(order_invoice) as minimum_invoice, Avg(order_invoice) as average_invoice
FROM vendor JOIN invoice ON invoice.id = vendor.id
WHERE order_invoice > 1
ORDER BY number_of_invoices DESC
Explanation:
The select statement of the SQL or structured query language returns twelve rows of four columns from the inner join of the vendor and invoice table in a database where the order_invoice column in the invoice table is greater than one. The result of the query is ordered by the alias column "number_of_invoices" in descending order.
Answer:
There are two customers in the PostalCode.
SQL statement for select all the fields and the rows from the Customers table where PostalCode is 44000.
SELECT * FROM Customers WHERE PostalCode = "44000";
Explanation:
The SELECT statement retrieve zero or more than one row from 1 or more than one the database tables or the database views.
In most of the applications, the SELECT query is most commonly used for DQL(Data Query Language) command.
SQL is the declarative programming language and the SELECT statement specifies the result set, but they do not specifies how to calculate it.
Answer:
Bluetooth is a wireless communication is typically limited to six feet distances
Explanation:
Bluetooth is one type of communication maximum it covers 10 meters to 30 meters. but it is one to one communication made for data transactions. After 25 meters of coverage on communication will be very slow on data transactions. But Bluetooth has also had a limitation.
IR. It is one of communication where infrared technology used. It is like face to face communication and speed of data transaction limited and it is also one to one communication made for data transactions. Communication paired and covered very little distances.
NFC it is chip-based and covers very little in fact just to device meet each and communication started. And very it caries very little data during the data transactions. it is also one to one communication made for data transactions
RFID is one of communication and it is powerful to cover more areas with multiple connections at the same time. It has a limitation in distance and it covers like a net with a specific distance
