Let's say I have a table with an integer column called ID being a primary key. It is unique and not-null, but we cannot guarantee it being sequential without gaps. I.e. we may have rows with ID = 1,2,6,7,8 and we do not have rows with ID 3,4,5 etc etc. This is why we cannot just generate a random number and get a row with that corresponding ID. Also we want all rows to have equal chance of being selected, so b/c of the gaps in ID values we ca

I myself am a tech geek but my knowledge on the subject of hacking is very minimum. So, at this stage of life I want to learn about hacking messengers, site and so on. So, I have posted this question. P.S. Try to be a little elaborate when giving your answer.

Problem: I have 1st phone that does not have access to Google Play, so I need to physically download APK files in order to install new apps on that phone I have another phone that DOES HAVE Google Play, and I have installed the app in question on that 2nd phone Question: How can I get APK file from the 2nd phone and move it to the 1st phone? Thanks! .

I have an older android that has HDMI connection and I can connect it to my TV, I want to be able to send video or music to it so it will play (so I don't have to buy another device like chromecast). Any ideas? The android on the old device is pretty outdated and I cannot update it since hardware limitations, so keep it in mind when suggesting something it should be able to install on gingerbread with apk

A/B testing (sometimes called split testing) is comparing two versions of a web page to see which one performs better - sells more products or signs up more users or whatever other goal you are optimizing for. You compare two versions of your page (let's call them A and B) by showing version A to some visitors and version B to other visitors. Both pages usually run in parallel (at the same time). Those visitors who see version A should never

Microsoft Outlook shows an error when pressing "Send/Receive" email button: The TCP/IP connection was unexpectedly terminated by the server. (Account: 'user@email.com', POP3 Server: 'gatorXXXX.hostgator.com', Error Number: 0x800ccc0f). The SMTP server is hosted by Hostgator (shared account). Anyone has any idea why is that happening? Please advice! Thanks!

Has anyone tried to embed an NFC chip like MiFare DESFire or even simple NFC tag into a dumb watch strap? Then you could potentially unlock office doors with your dumb watch - should be a bit easier / faster compared to pulling out your thick wallet with Access Cards in it, and it could have potentially some other applications too.

Can you stack multiple NFC cards on top of each other in your wallet? Will they continue to work without interference? Or will they block each other? I am just being lazy and do not want to pull cards out of my wallet to open various office doors, I just want to touch the reader with the wallet and be done with it. And the wallet of course would contain several NFC cards held pretty close together. Can somebody please stage an experiment an

Who manufactures smallest NFC tags?

What is the size of the smallest NFC tag?

Are RFID Glass Tags compatible with NFC tags / readers?

I want to show the user how many characters they have typed in the text box.

I've tried to run this console command: SqlCmd -E -S MyServer –Q “BACKUP DATABASE [MyDB] TO DISK=’D:BackupsMyDB.bak'” But it did not work! Please help )

Connecting and insert record to database.

So users cannot do the following: Disable right-click on desktop (start menu and task bar already disabled with policy) Remove/hide Control Panel icon (but not all control panel functions - Date and time allowed for the specific application) Remove/hide Printers and Faxes (no need for any printing anyway but group policy didn't have the option to do so)

Windows server 2003 and windows xp

For penetration testing, and proving to business that it's a weak encryption to use WEP, what is the easiest way to hack it on windows 7?

Older computer, how to setup a shared printer on the network

Environment: VS2013 .NET 4.5 WebAPI project I try to get a "MapPath" path for some dir, but in the WebAPI project "HttpContext.Current" is NULL How example: string path = HttpContext.Current.Server.MapPath("~/Some/Path"); Please. Help me!

I've rechecked all menus in Internet Explorer. How I can check cookies which is stored on PC.