This will find and delete all duplicate rows. You can refine the granularity of uniqueness by including more columns than just the Primary Key. If you are picky about which rows you want to delete, don't use this. Instead use the 'Find Duplicates' script I just submitted and then delete manually.
2002-05-24
1,093 reads
Find duplicates in any table, and report the number of duplicates. Enter in the table name, and the field or fieldsfor which there should only be one row for each of that field, but you suspect are more. For example, if an employee table has more than one record for an employeethis will find any […]
2002-05-24
588 reads
This script generates a statement that you would then run in the user database to get rowcounts of all tables. The advantages of this approach are you can modify it to get just the tables you want, and the output is easy to read:Table1-------1069Table2------10427
2002-05-24
421 reads
By Brian Kelley
Following the advice in Smart Brevity improves communication.
By John
Microsoft has released SQL Server 2025, bringing big improvements to its main database engine....
By Steve Jones
A customer was asking about what certain items in Redgate Monitor mean. They have...
I have table: t1 in schema1 with 19 billion records. I have another table...
Comments posted to this topic are about the item Minimally Viable Security
Comments posted to this topic are about the item Encoding NULL
What is returned from this code in SQL Server 2025?
SELECT BASE64_ENCODE(NULL)See possible answers