Error
Error Code:
1007
MySQL Error 1007: Database Already Exists
Description
MySQL Error 1007 occurs when you attempt to create a new database using a name that is already in use on the MySQL server. This error prevents the creation of a duplicate database, ensuring data integrity and uniqueness of database names.
Error Message
Can't create database '%s'; database exists
Known Causes
4 known causesAttempting to Re-create Existing DB
A script or manual command tried to create a database with a name that already exists, often due to a script being run multiple times without checking for prior existence.
Incorrect Database Name
You might have mistyped the intended database name or misremembered an existing database's name, leading to an attempt to create a duplicate.
Case Sensitivity Mismatch
On some operating systems, MySQL treats database names as case-insensitive, meaning an attempt to create 'mydatabase' will fail if 'MyDatabase' already exists.
Concurrent Creation Attempt
Multiple processes or users tried to create a database with the exact same name simultaneously, and one succeeded just before the other, causing a race condition.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service