When you enter a new record into a table that contains an identity column, the identity value will be set with the next available value. Your database design often requires you to obtain that value, so you need to be able to find it.
TempDB is the ALU of the SQL Server and if somehow this gets deleted Server cannot start. Here is a solution of how to get the server started when TempDB is deleted.
When Agile meets 'Big Design', the result can be frustration on both sides. Is it possible for database development to to easily coexist with Agile methodologies for application development? Nick suggests that the technical solutions already exist, and the dissonance is more due to cultural and organizational problems
The recent Amazon AWS outage was blamed on human error. Steve Jones notes that the more interconnected our systems are, the more likely that a human error might cause cascades between the systems.
Automate patch installations using the task scheduler and command line hotfix options for SQL.
Foreign key constraints are an integral part of SQL Server database design. These are used to maintain integrity among related data in different tables. While implementing update and delete operations on values in the parent table (referenced table with primary key) we have to consider the impact on related values in the child table. SQL Server provides different rules for managing the effect of updates and deletes on child table values. How can these rules be used effectively without threatening the relational integrity?
This week Brad McGehee asks if your company is a 100% Microsoft software shop or if you are allowed to use third party software with your SQL Server.
More cloud talk today as the Air Force is building a new intelligence sharing system in the cloud? Why the cloud? Is the cloud really better?
This challenge to multiply two positive integer strings and return their product. The strings can be really long: up to 1024 digits
Ever restored a corrupted database from the backup, only to find that the backups are corrupted too - All the backups? Sure it can happen and it isn't nice when it does. To check that a database backup is internally consistent you have to use DBCC CheckDB. On a huge highly-loaded live system? Grant Fritchey has, as usual, a practical solution.
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Comments posted to this topic are about the item BIT_COUNT II
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37 4 NULLWhat is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 4;See possible answers