Investigate a DBCC CLONEDATABASE sys.sysschobjs error with supported catalog checks, original screenshots and a distinct build-specific fix.
Profiling a Table’s Data: Nulls, Distinct Values and Lengths
Start profiling a table’s data with null counts, distinct values, lengths, and generated checks that expose misleading column definitions.
SQL SERVER – Automatic Seeding of Availability Database ‘SQLAGDB’ in Availability Group ‘AG’ Failed With a Transient Error. The Operation Will be Retried
Earlier I have written few blogs about automatic seeding feature. In this blog we would learn how to fix error: Automatic seeding of availability database.
Availability Group Restore Error When You Add a Database
The availability group restore error appears when automatic seeding and a manual restore both fill the same secondary. The post explains the cause, shows read-only checks for the seeding mode and the replica roles, and gives the fix with its undo.
COPY_ONLY Full Backup Size: What Differs Between Always On Replicas
A COPY_ONLY full backup of the same database can have a different size on the primary and the secondary replica of an Always On group. This post reads the log pages in the backup messages, shows them on a standalone database and explains how to compare backups fairly. It also covers what a restore needs.
DBCC FLUSHAUTHCACHE: Force Azure SQL to Re-authenticate
DBCC FLUSHAUTHCACHE clears the authentication cache of an Azure SQL database, so open connections must authenticate again. This post shows what a password change does to open sessions on SQL Server, why Azure SQL needs the extra command and how to list the sessions you want to end. It also covers the cautions that matter.
Drop Tables by Prefix in SQL Server and Azure SQL Database
To drop tables by prefix, list the matching tables first and drop them with a script that quotes every schema and table name. This post shows why the underscore in a prefix is a trap, a one-statement version and a cursor version. It works in SQL Server and in Azure SQL Database.