Understand MSDTC for linked-server transactions, inspect RPC promotion settings, diagnose coordination errors, and compare simpler designs.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
MySQL – How to do Natural Join in MySQL? – A Key Difference Between Inner Join and Natural Join
MySQL supports NATURAL JOIN, which maps matching columns from both tables on its own. I show how it works and the key difference from INNER JOIN.
MySQL – Reset Row Number for Each Group – Partition By Row Number
MySQL has no ROW_NUMBER() OVER (PARTITION BY), so here is how to reset row number for each group with a variable, using a simple example.
MySQL – Generating Row Number for Each Row Using Variable
MySQL has no ROW_NUMBER() function like SQL Server. Here are two methods for generating row number values for each row with a variable in a SELECT statement.
SQL SERVER – Retrieve Maximum Length of Object Name with sp_server_info
How long can a table name be in SQL Server? The answer is 128, and you can confirm it yourself by running the stored procedure sp_server_info.
Performance Statistic Collection: Notes from the Field #018
Good tuning starts with good numbers. In Notes from the Field #018, David Klee explains performance statistic collection and how DBAs should gather server data.
Sending an HTML Table by Email With sp_send_dbmail
Turn a wall of report text into a clean table. FOR XML PATH escapes your data, and a few small tricks handle NULL values and empty days.
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