Mean Median Mode using SQL and DAX
This article explains how to calculate the important statistical functions, MEAN, MEDIAN, and MODE, in both T-SQL and DAX.
2020-02-28
33,400 reads
T-SQL
Database Normalization in SQL with Examples
Gouri Shankar provides an overview of normalizing a database.
2020-02-18
85,822 reads
Handling Aggregations on a Poorly Designed Database
When the database design is not great, you may have to write some creative queries to get what you need.
2020-02-17
3,446 reads
Calculate Moving Averages using T-SQL in SQL Server
Introduction In Financial Data, analyzing the Moving Average (MA) is a very common practice. The direction of the moving average conveys important information about prices, whether that average is simple or exponential. A rising moving average shows that prices are generally increasing. A falling moving average indicates that prices, on average, are falling. This article […]
2020-02-04
22,584 reads
Prevent SQL Server Blocking using Lock_Timeout
In this tip we look at a way to minimize the length of blocking using SQL Server lock timeout.
2020-01-24
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.
2019-12-10
2,544 reads
SQL Server Name Convention and T-SQL Programming Style
There are only two hard things in Computer Science: cache invalidation and naming things -- Phil Karlton The recommendations in this article are not the ultimate truth. Please consider this article as a rule template that you can adapt to your needs. A naming convention is a set of rules for choosing the character sequence to […]
2019-12-10
24,488 reads
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.
2019-11-25 (first published: 2019-11-24)
740 reads
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.
2019-11-12 (first published: 2019-11-08)
2,029 reads
T-SQL query to copy data from one database to another database
T-SQL query to copy the rows of all the tables from one database to another database only if they have rows in Source DB and exact same Schema in both Source and Destination DB.
2019-11-07 (first published: 2019-10-30)
5,384 reads
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Forums
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Dear All, In one of the server its repeatedly restarting sqlserver services and not...
Understanding CROSS APPLY and OUTER APPLY in SQL Server
Comments posted to this topic are about the item Understanding CROSS APPLY and OUTER...
Database Files on Shares I
Comments posted to this topic are about the item Database Files on Shares I
Question of the Day
Database Files on Shares I
I want to store database files on a file share for a SQL Server 2017 instance. Can I use \\fileserver\D$ as a location?
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