Scripts

Technical Article

Orphaned Users Search and Destroy

This script will find all orphaned users on all databases on an instance, and generate a script to drop each user. Simply execute, copy the values from the DropScript column to a new SSMS window and execute. There are two risks with this script. Use with caution: This script attempts to take into account users […]

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2020-03-16 (first published: )

1,366 reads

Technical Article

String Search

The script searches through every column of every record in a database to find a value. It works with numbers too. Simply assign a value to @MyString. Indicate what datatype(s) you wish to search through, and indicate if you want wildcards, and execute. The search is smart and will only search through columns where @MyString is […]

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2020-03-05 (first published: )

1,178 reads

Technical Article

Amazon RDS SQL Server - Drop Database with Mirroring

Dropping database in RDS follows different method than dropping the database in local SQL Server. Below is the command to DROP the database in Amazon RDS EXECUTE msdb.dbo.rds_drop_database N'demodb' GO However when the SQL Server is configured with Multi-zone mirroring, then you need to set the partner to OFF and drop all active connections and […]

(1)

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2020-01-17

3,830 reads

Technical Article

T-SQL script to purge all the tables including foreign key references

T-SQL script to purge all the tables including foreign key references. The script has been made smart enough to use TRUNCATE wherever there is no foreign key reference and to use DELETE wherever there is foreign key reference.

(3)

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2019-12-10

2,616 reads

Technical Article

Function and Queries to Convert Hierarchical Adjacency to Nested Json Arrays

This script converts hierarchical adjacency into nested json rows which contain the recursive "downlines" of each node.  The table-valued function treats each row in the original adjacency as the root node in a recursive common table expression. 

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2019-11-24

805 reads

Technical Article

Create a view to Alter a Table and Add three Columns

I am teaching a database class at Queens College. The project entails the truncation of all of the data and loading new data into the  existing database "BIClass" from a single of the flattened data. One of the tasks of the project was to add these three additional columns to each of the tables (AlterTableAddColumnsUserAuthorizationKeyAndTwoTimeStamps): […]

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2019-11-18 (first published: )

1,018 reads

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Question of the Day

BIT_COUNT() III

In SQL Server 2025, I run this code:

select bit_count(-1)
What is returned?

See possible answers