Why does sys.indexes show 7 indexes when Object Explorer shows only one? The answer is hypothetical indexes. Here is what they are.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
SQL SERVER – FIX – Error: One or more files do not match the primary file of the database
A reader moved and renamed database files and got error 5173: one or more files do not match the primary file of the database. I explain what went wrong.
Why SELECT 28F3 Returns 28: Float Literals and Hidden Aliases
Explain float literals, why SELECT 28F3 creates an alias, how 28E3 uses scientific notation, and why explicit AS prevents confusion.
SQL SERVER – FIX: ERROR : Msg 3136, Level 16, State 1 – This differential backup cannot be restored because the database has not been restored to the correct earlier state
Fix SQL Server error 3136 by checking the differential base, backup history and restore sequence. Test the matching backups in a separate database.
SQL SERVER – FIX: ERROR : Msg 3023, Level 16, State 2 – Backup, file manipulation operations (such as ALTER DATABASE ADD FILE) and encryption changes on a database must be serialized
Backup jobs failing with Msg 3023? Backup, file changes and encryption changes on a database must be serialized. I look at what caused it for one reader.
SQL SERVER – Fix – Error 5058, Level 16, State 1 – Option cannot be set in database
A DBA’s maintenance task kept failing with Error 5058, Option cannot be set in database. I tracked down why it happens and how to fix it.
SQL SERVER – Performance Counter Missing: How to Get Them Back?
A friend opened PerfMon and found every SQL Server performance counter missing for his instance. Here is how we got them back.
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