How to recover a mistakenly deleted table in SQL Server

In SQL Server, if a table is mistakenly deleted without backing up the database, you can try the following methods to recover the table.

1. Rolling back a transaction: If the deletion of a table is done within a transaction, you can use a rollback transaction to undo the deletion. The ROLLBACK command can be used to undo any uncommitted transaction.
2. Utilizing Transaction Log: The transaction log in SQL Server records all operations on the database, including table deletions. By restoring a backup of the transaction log before the table deletion, it is possible to recover the deleted table. The specific steps are as follows:
3. Set the timestamp for deleting the table.
4. Restore the database using the RESTORE DATABASE command to return it to the backup taken before the tables were deleted.
5. Use the ROLLFORWARD command to restore the transaction log to the state before the table was deleted.
6. After the recovery is complete, the table can be recreated by copying the table structure and data.
7. Utilize third-party tools: If the above methods are not feasible, you can also use some third-party database recovery tools to recover accidentally deleted tables. These tools can scan the database files, locate the deleted table data, and attempt to restore them.

It is important to note that regardless of the method used, stopping the write operations on the database in a timely manner is crucial to prevent overwritten data. Additionally, regularly backing up the database is the best way to prevent data loss. It is recommended to establish a backup strategy after restoring tables so that data can be easily recovered in the future.