2024-01-17
461 reads
Primary Key (PK)
2024-01-10
523 reads
2023-11-27
5,788 reads
Questions about Primary and Foreign Keys You Were Too Shy to Ask
It is strange that one can ask simple questions about extended events or Hekaton at professional events and conferences without feeling embarrassed, yet nobody likes to ask vital questions about SQL Server primary keys and foreign keys. Fear not, here are 13 questions you were too shy to ask, answered.
2014-10-14
9,933 reads
Why Primary Keys can be important on large tables
I inherited a database that was getting large and not performing well. After adding primary keys life got better.
2014-06-30
14,663 reads
Primary Key Primer for SQL Server
Every database developer uses keys, but without always understanding all the ramifications. They come with few hard and fast rules, but if you get them right from the start with a database design, the whole process of database development is simpler, and the result is likely to perform better. We asked Phil for advice, little knowing that the explanation might take a while.
2013-12-19
5,005 reads
Primary Keys which are not Clustered Indexes in a database
Recently I was asked to find all the Primary keys that are not clustered Indexes in the database. I constructed the below script which will help us to locate the primary keys in the database which are not clustered index.
2013-09-18 (first published: 2013-09-04)
1,921 reads
2013-01-29
2,613 reads
Find Primary Column of all tables in database
This code helps in finding Primary Keys for all tables in a database.
2012-10-02 (first published: 2012-09-04)
1,430 reads
Find gaps in primary keys across multiple databases
Output table of gaps in a primary key across multiple databases on same, remote and/or linked servers.
2012-02-13 (first published: 2011-08-12)
938 reads
Blogs
Solving SQL Server Mysteries with a Whole Gang of Sleuths -Scooby Dooing Episode 4
One thing I’ve always loved about the Scooby-Doo cartoon is that he never solved...
SQL Server Availability Groups
By Kevin3NF
Flexibility and Scale at the Database Level When SQL Server 2012 introduced Availability Groups...
Modify Power BI page visibility and active status with Semantic Link Labs
Setting page visibility and the active page are often overlooked last steps when publishing...
Forums
Password Guidance
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Using table variables in T-SQL
Comments posted to this topic are about the item Using table variables in T-SQL
Azure elastic query credential question
I am trying to check out elastic query between two test instances we have...
Question of the Day
Using table variables in T-SQL
What happens if you run the following code in SQL Server 2022+?
declare @t1 table (id int); insert into @t1 (id) values (NULL), (1), (2), (3); select count(*) from @t1 where @t1.id is distinct from NULL;See possible answers