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zlopas [31]
2 years ago
13

Write a SELECT statement that returns the same result set as this SELECT statement. Substitute a subquery in a WHERE clause for

the inner join.SELECT DISTINCT VendorNameFROM Vendors JOIN Invoices ON Vendors.VendorID = Invoices.VendorIDORDER BY VendorNameInsert one screen capture here that shows a single query with result that meets all of the above requirements.
Computers and Technology
1 answer:
AleksAgata [21]2 years ago
8 0

Answer:

SELECT DISTINCT VendorName FROM Vendors

WHERE VendorName= ANY (SELECT VendorName FROM Vendors JOIN Invoices ON Vendors.VendorID = Invoices.VendorID) ORDER BY VendorName;

Explanation:

All bold faced words are sql keywords for different purposes. The subquery return the all values which matches the join condition  and main query will choose only distinct values and make them in order of VendorName.

There many other queries also return the same result as returned by given query.

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What were the technological innovations that allowed for the rapid expansion of the railroads?
liraira [26]

Answer:

There are different phases of railroad expansion with the innovations in technology.

Explanation:

Few of the technological innovations are described below that leads in railroad expansion more rapid.

1. Centralized Traffic control (CTC) is introduced in 1960's that is used to control the traffic on railroads using different signal control.

2. In 1990's after computer technology involvement, railway ticket and reservation system is automate and being centralized. That makes the railroad expansion improve.

3. Bullet train technology has been introduced, that makes the railway trains more faster.

4. Electric trains has been introduced to use green energy and reduce the dependency on the fuel to make environment clean and green.

5 0
3 years ago
In the code snippet below, pick which instructions will have pipeline bubbles between them due to hazards.
denpristay [2]

Answer:

b. lw $t4, 4($t0)

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Explanation:

Pipeline hazard prevents other instruction from execution while one instruction is already in process. There is pipeline bubbles through which there is break in the structural hazard which preclude data. It helps to stop fetching any new instruction during clock cycle.

7 0
2 years ago
Suppose you can access the caches in the local DNS servers of your department. Can you propose a way to roughly determine the We
lubasha [3.4K]

Answer:

We can periodically take a snapshot of the Domain Name System (DNS) caches in the local  Domain Name System (DNS) servers.

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We can periodically take a snapshot of the Domain Name System (DNS) caches in the local  Domain Name System (DNS) servers. The Web server that appears most frequently in the  Domain Name System (DNS) caches is the most popular server. This is because if more users are interested in a Web server, then Domain Name System (DNS) requests for that server are more frequently sent by users. Thus, that Web server will appear in the  Domain Name System (DNS) caches more frequently.  

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3 years ago
What does clicking and dragging the fill handle in excel
Olegator [25]

Answer:

The fill handle copies the same values, formulas, or fills a series of dates, texts, numbers, and other data to a desired number of cells. ... Click and hold the handle, then you can drag up, down, across over other cells. When you release your mouse button, it auto-fills the content to the cells you dragged over.

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2 years ago
What field is used to send a copy of an e-mail message?
vampirchik [111]
The CC field is used to send a copy of an email. CC stands for carbon copy.
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3 years ago
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