Does Primary Key Allow NULL in SQL Server? Let’s Test It
A Primary Key doesn’t allow NULL values because it must uniquely identify each row in the table. If NULLs were…
Category: Database Administration
SQL Server – How Primary Key Ensures Unique Records in Database
In relational databases like SQL Server, MySQL, PostgreSQL, or Oracle, data integrity is crucial. One of the key constraints that…
Quick Fix: SQL Server Error 3702 – Cannot Drop Database Because It Is Currently in Use
SQL Server Error 3702 is a common roadblock when attempting to drop a database that still has active connections. The…
How to Delete a Database in SQL Server using T-SQL
Deleting a database in SQL Server using a T-SQL script is a quick and efficient method ideal for automation, scripting,…
How to Delete a SQL Server Database Safely
A SQL Server database may be deleted when it’s no longer needed, such as after migration, project completion, or in…