Can varchar be primary key?
Explain me what is semaphore?
how many stairs have you climbed while you were coming
How do I know if my windows 10 driver is corrupted?
How is the accounting for hire purchase transactions done?
What is the difference between kernel and operating system?
How to test database in manually?
Define batch input session?
What are the lifecycle methods going to be deprecated in react v16?
Why might the optimizer use a table scan when an index is available?
"mysql_fetch_row — Get a result row as an enumerated array",this sentence comes from the PHP offical manual.However ,i can not understand the words "enumerated array".I need some help.Thanks a lot to everyone that reply.
I need to determine the difference between two times. If the difference is positive, it works fine. But excel does not want to display negative time values. Why not?
Is calibri a good font for powerpoint?
Write clear, echo, print and banner command.
Explain about CFU counting of BCG strain ?