Whatever database it is
We can recover its data
● Database files are deleted directly on the device (database files are deleted without backup)
● Some or all data have been deleted from the database system
● The database cannot perform instruction operations such as query (error occurs while instructions are inputted)
● The computer crashes while reading database files (slow or completely blocked during reading)
● The device containing database is formatted accidentally (the button of formatting is pressed accidentally)
● Database files are damaged and cannot be mounted (prompt "error" when mounting database)
● The database in the database system somehow disappears (some database suddenly could not be found under normal use)
Among numerous failures, there is only one situation that we suggest you try to recover by yourself, and we suggest you leave the remaining situations to a company specifically engaged in data recovery for processing (we will, in the paragraphs below, explain the reason why you should leave the remaining situations to a data recovery company, rather than try to solve them by yourself). This is the case when there is no hardware damage to the device containing database，such as careless deletion of data and no writing of any data, or careless formatting of the device, and then you can try to recover data with data recovery software. The commonly used data recovery software includes EasyRecovery, WiseRecovery and Disk Drill, and it is necessary to pay attention to and identify their advantages and disadvantages in use. Of course, before trying it out on your own, there are certain steps you must pay attention to, otherwise, data may not be recovered and your device may be further damaged. The first step is to make a complete copy of the device according to the current state to another device (not the copy and paste through Windows, but completely copy every byte of the device through software, which can be done only when the device does not suffer hardware damage). This step requires a writing protection device (Write Blocker), so as to prevent change of the data. Then you can use the data recovery software to recover the copied device, but the recovered data must not be put back to the original device. It is because, in this case, overwriting and recovering will occur simultaneously and the recovered data cannot be opened. So keep in mind the above steps. For anything you don’t understand, please feel free to contact us for details at any time, and we are willing to answer questions for each customer. But sometimes the data recovery software cannot solve all problems, and in most cases, you have to rely on data recovery engineers for analysis. For example, why the rescued data does not have directory or file name or not a byte of data can be rescued. At this point, you don't have to give up and you can contact us. We will try to rescue your important data.
If the device suffers hardware damage, and because there is no professional technology or equipment, you might truly make the device worse or the data lost forever through aimless attempts. For example, there is a bad sector on the device, but you use the data recovery software to scan the device, and then you will find the device is getting slower and slower, even a crash. This is because scanning is to read the information of each sector of the device. When it comes to the bad sector, it will get stuck and reading cannot continue. The magnetism of the device will become increasingly weaker due to continuous forced reading, and the number of bad sectors will increase. At this moment, it is quite usual that a friend or someone knowing much about computer will tell you to recover the bad sectors with special software. The result, of course, will be in vain. This is because the software doesn't fix the bad sectors at all but marks areas with bad sectors as no longer in use, and by that time, things are worse than they originally were. If you take the device to a professional data recovery company at this moment, the failure detected will be more serious than it initially was. Actually, if you want to recover the data from the device with bad sector failure, the data can be smoothly recovered with corresponding equipment support, with relatively low price and high degree of data integrity. But if you make forced reading, scanning and bad sector recovery on your own, the device will become more damaged, even the magnetic head used to read and write data might fail. Then the price will be high and data integrity will be reduced. In individual cases, the disk might be scratched, leading to serious data loss. In the past recovery cases, many users would constantly try to read the device on their own, which would have a great impact on the subsequent data recovery. It is therefore suggested that non-professionals should minimize aimless operation. There is only one chance for data recovery. Please make backup and find a professional data recovery company to help rescue your valuable database.
If the database needs to be rescued in case of failure, the first step is to make a complete copy of the device containing database. If it is a hardware failure, Commonly used professional devices include PC-3000, Data Compass, dust-free laboratory, microscope and oscilloscope. These professional devices and tools can help us accurately detect specific HDD failures without damaging the HDD. Database are usually large-capacity files, which will be stored on the device in many parts. First, we should make sure whether the file structure is complete. If it is complete, all parts of the database file can be clearly marked. If the file is directly saved, it can be successfully mounted and the database can be completely restored. If the file structure is missing, it is necessary to manually analyze the original data of the device, retrieve each part of the database files one by one, and calculate the order of these parts before the database can be completely restored. When some parts of the database cannot be read due to overwriting or physical damage, the database we extracted is missing. In this case, we should correct and debug the database by writing codes so that the database can be mounted normally. There are different solutions to different e-mails, and we have also developed corresponding application programs to respond to circumstances based on past experience and cases, including Microsoft SQL Server、Oracle、MySQL and Sybase. Therefore, the recovery of database data is a difficult process and requires rich experience and superb technology to recover the data to the maximum extent.
A Successful Recovery Case of SQL SERVER
The customer told us the hard drive could be recognized, but the data inside could not be read at all, and it was found that part of the data was missing...Learn more >