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
34,385 reads
T-SQL
Database Normalization in SQL with Examples
Gouri Shankar provides an overview of normalizing a database.
2020-02-18
88,773 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
3,463 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
23,085 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
2,601 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
25,210 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)
797 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)
2,076 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)
5,503 reads
Blogs
SQL Server Journey Part 2: Modern Era (2017 – 2026) – AI/Cloud First
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Google Moves Up Post-Quantum Cryptography Timeline
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In cryptography, the RSA and ECC algorithms which we use primarily for asymmetric cryptography...
The Book of Redgate: No Politics
By Steve Jones
In today’s world, this might mean something different, but in 2010, we had this...
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Dancing Robot Goes Rogue
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advice as i migrate my winscp based ssis pkg to our prod server
Hi , i installed winscp on my pc, added it to GAC thru vs...
Identities and Sequences II
Comments posted to this topic are about the item Identities and Sequences II
Question of the Day
Identities and Sequences II
In thinking about the differences between the identity property and a sequence object, which of these two guarantees that there are consecutive numbers (according to the increment) inserted in a single table?
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