Answer:
Databases are not that simple. Now we not only have a Data warehouse, but we also have the Data Lake as well. We also have NoSQL and SQL form of support with these modern databases. The JSON format is rocking. You can hence through JSON store the text, image, audio, video, etc in one go. And like the first five can be a text, the next five can be an image then again a text than video, and so on. And it is super easy to access them as well. Also, you can edit them quite easily as well. It's not that hard like the Lisp used to be in the past. And supermarket has a mix blend of the database. And modern databases like Data Lake can be very useful, undoubtedly.
You can store security type of requirements, like CCTV footage, each shop details like shop ID, Product list, shop type, electricity bill, hours of opening, floor, facilities, no. of employees, etc., and like this, we can have the details for the entire supermarket, and each shop there definitely. And we can perform various actions on behalf of each shop and market as well. The database can hence be very useful definitely
Explanation:
Please check the answer.
Answer:
Its a error mistake or its alive hiding evidence for an invasion
Answer: Where the guide lines?
Explanation: I’ll help but where the guidelines?
Answer:
There is an error in "String s=s1-s2 ";
Explanation:
In java programming, we can subtract subtract two strings variable with "-" operator.Java programming does not support an overload of the '-' operator.In java, we can use only "+" operator to append two strings variable.There is no such method to subtract strings in java.Therefore in the given code String s=s1-s2 will give an "bad operand type" error because we can not subtract one string variable from the second string variable.
The answer is D, I believe.
