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I have an attendance machine ZKTeco f18. Which can read both Fingerprint and Card. I have access to the database of it. I want to keep data from this machine database to my local PC dababase like MySQL. What will be the steps of this work.
**Which language will be preferable for this work?
If it has TCP/IP support assign an IP address to it on the same subnet as your PC so that you can reach it via network (assuming it is connected to your LAN), you could use Php scripting language to access the database and save it to your PC's MySQL. Atleast for me that's what I would use. Which data would from the device would you want to archive in your PC? The fingerprint data or the reports?
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hello how can I make a system project using Vb.net and MySQL as my database how can I creat a system project I'm planning on making a billing system but I don't know where to start
I haven't tried anything yet but I'm still wondering how can I connect Xampp as my database to the system project that I'm planning to make does anyone have a system project in here can someone give me the source code or just simply help me please
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If I have multiple websites that access the same MySQL database - should each website use a different MySQL user, or is it ok to use the same user for all of the website?
The database and websites are on the same server.
Are there any pros or cons for each configuration?
I think it depends if you're the only one that's accessing the database, and what kind of website it is. If you're making websites for clients with WordPress for example, or any other CMS where the database credentials are saved in an accessible file (like wp-config), you definitely want to have different databases.
In case you're the only one accessing the database and the websites are all your own, I guess you could use the same user. I think I'd use different ones, even if it's just for clarity, but there is something to say for having just one account regarding security. Having just one account with a strong password means there are less accounts that could get hacked.
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I am looking for a way to backup MySql database use a C program. Does MySql provide API for backup?
No, mysql does not provide any dpecific api to back a database up.
Mysql does provide the mysqldump utility that can be called from the command line to back up a database and also provides a general C api to access a mysql server. The heneral api can be used to write your own backup program if you are unhappy with mysqldump.
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So if I were to developer a simple application that would store a user's photos and videos, how should I store them. I was thinking of using a cloud service like amazon to store photos/videos and store their urls in a mySQL database. But I was wondering if there are any other better approaches? What does Facebook/Instagram do?
This will attract subjective answers but if you want to use cloud services, you can definitely store the actual photos/videos on the cloud itself. And as you mentioned just store the link the database
The word you might want to research is CDN, Amazon has one service called Amazon S3
Edit, quick Google showed that Instagram is using Amazon S3. You can read here
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I was wondering if there is any tool which would help me transfer changes form one database to another. Currently every time I want to deploy new version for tests I have to manually execute all database changes scripts and transfer them to every other database. Is there any way to somehow automate this process ? If it matters , the project is being written in c# and database is MySql
If you are looking for a GUI application then Navicat Premium can help you achieve this just. It has data sync tool and transfer tool and can also work with all major databases. Only problem is that its not free.
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