Answer:
The correct answer is B)
Explanation:
The commit command allows us to:
• Consolidate, confirm
• committing refers to the idea of confirming a set of provisional changes permanently.
• A popular use is at the end of a database transaction.
•
The LOCK TABLE command should be used:
• when a lock of the mode specified in the table can be acquired.
• The command will wait for everything you need to get the lock,
• In case you cannot acquire the lock immediately, the NOWAIT option is specified so that the command cancels the transaction.
Answer:
V-chip technology works much like closed captioning and uses the vertical blanking interval in the television signal.
Answer:
PROGRAMMING APPROACH:
- Define the necessary header file using namespace.
- Define the main() method.
- Declare variable inside the function().
- Print result.
Explanation:
Required C++ Code:
#include<iostream>
#include<string>
using namespace std;
int main()
{
string condStr;
int userVal;
cin>>userVal;
condStr=(userVal<0)?("negative"):("non-negative");
cout<<userVal<< " is "<< condStr <<"."<<endl;
}
OUTPUT:
-2
-2 is negative.
Answer:
Technology has a prestigious history. It took years for the technology to come up and prove its essence.
The Internet, World Wide Web, the development of websites, the introduction of Wikipedia and its evolution marks the golden period on 1980s which was followed by launch of certain search engines like google, bing, duckduck go and may more which made the surfing more easy and fun. Then further the launch of android phones and iPhones brought up another revolution in technology.
Nowadays, technology finds its use almost everywhere. Talking about the classrooms, students resort to internet for exploring studies, topics, projects and much more. The use of Wikipedia has reached a whole new level. Teachers tend to provide assignments over the internet only in order to increase the exposure and reduce the use of paper which works in the collective good of both internet and nature!
