SELECT CASE WHEN (GROUPING(sob.name)=1) THEN 'All_Tables'
ELSE ISNULL(sob.name, 'unknown') END AS Table_name,
SUM(sys.length) AS Byte_Length
FROM sysobjects sob, syscolumns sys
WHERE sob.xtype='u' AND sys.id=sob.id
GROUP BY sob.name
Reference : Pinal Dave (https://blog.sqlauthority.com)
SQL SERVER – Query to Find ByteSize of All the Tables in Database
Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 17 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.
Pinal has authored 13 SQL Server database books and 40 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,500 database tech articles on his blog at https://blog.sqlauthority.com.
Pinal is an experienced and dedicated professional with a deep commitment to flawless customer service. If you need help with any SQL Server Performance Tuning Issues, please feel free to reach out at firstname.lastname@example.org.
Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long term multi-channel campaigns to drive leads for their sales pipeline.
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