T-SQL: Check progress of DBCC checkdb

bschelst/ May 10, 2019/ SQL-Server/ 0 comments

Doing a dbcc checkdb can take a lot of time, and in case of corruption you really want to see the progress. You can use the t-sql statement below to find the progress. Keep in mind to replace the YOUR_DB_ID to the id of your database. (find out in sys.databases)

Oracle: solving block corruption

bschelst/ April 29, 2019/ Oracle/ 0 comments

Step 1:  If block corruption was found, first find the corrupted blocks: Stzp 2:  Check to which table/index/etc that block belongs to. Step 3:  Resolve the block corruption using RMAN (which is one of the possibilities):  

Linux: “du” values don’t match “df” values.

bschelst/ February 16, 2019/ Linux/ 0 comments

If you do a df, and you compare those values with ‘du’, it is possible that those values don’t match. There are multiple reasons why this can happen, and one of those reasons if that files where deleted, but that the files are still in use by an application.In that case, it is possible that you need to stop/restart the

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T-SQL: List transactions & log used

bschelst/ February 11, 2019/ SQL-Server/ 0 comments

The code below will list the transactions on the instance, and it will also include the size of the log which is used for that transaction.The output is ordered by log size. You can also use the below to find more info regarding a transaction

T-SQL: Check progress of backup/restore

bschelst/ February 11, 2019/ SQL-Server/ 0 comments

Backups/restores can take a lot of time, but when it’s running, you want so see the progress.By executing the handy T-SQL code below, you can see the progress of the backups/restores on your system.

T-SQL: Remap SQL users

bschelst/ February 11, 2019/ SQL-Server/ 0 comments

If you copy (backup/restore) a database from system A to system B, it is possible that the SQL users won’t be able login and this because the GUID/SID of the users on system A doesn’t match the GUID/SID of system B. It is using the EXEC sp_change_users_login ‘Auto_Fix’, which inks a user entry in the sys.database_principals system catalog view in

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