Associative Statistics – One sample T-Test with TSQL and R
In this post am going to attempt to explore a statistical procedure called ‘One Sample T Test’.
A T-Test is used...
2016-09-30 (first published: 2016-09-21)
1,950 reads
Mala Mahadevan
11 years of PASS Summit
This is a story of my 11-year association with PASS, and the many ways it helped me grow as a...
2016-09-23
427 reads
Why SQL Cruise?
I was riding the elevator up from lunch today, at work. I am relatively new at my job and do...
2016-09-23
486 reads
Statistics with TSQL and R: Chi Square Test
As I move on from descriptive and largely univariate (one variable based) analysis of data into more multivariate data – one...
2016-09-21 (first published: 2016-09-13)
4,591 reads
Budgeting for SQL Saturdays
We’ve been doing SQLSaturdays for eight years at Louisville now. We’ve had a quite a wide range of budgets depending on...
2016-09-13
595 reads
Statistics with T-SQL and R – the Pearson’s Correlation Coefficient
In this post I will attempt to explore calculation of a very basic statistic based on linear relationship between two...
2016-09-08 (first published: 2016-09-05)
3,201 reads
Calculating odds ratio with T-SQL and R
Simple steps towards understanding what is an Odds Ratio, and how do we arrive at it using TSQL and R scripts.
2016-08-30
2,535 reads
Script for creating test data for odds ratio
Make sure you have a working version of SQL Server 2016.
USE [master]
GO
/****** Object: Database [WorldHealth] ******/
CREATE DATABASE [WorldHealth]
CONTAINMENT = NONE
ON PRIMARY
(...
2016-08-16
401 reads
TSQL Tuesday #081 – Sharpening something
This TSQL tuesday is hosted by my good friend Jason Brimhall – Jason has put forth a creative challenge – plan to...
2016-08-10
295 reads
Descriptive Statistics with SQL and R – II
In the previous post I looked into some very basic and common measures of descriptive statistics – mean, median and mode,...
2016-07-24
614 reads
Blogs
AI: Blog a Day – Day 4: Transformers – Encoder, Decoder, and Attention
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
Flyway Tips: Multiple Projects
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
What DevOps Look Like in Microsoft Fabric
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
Forums
Can an Azure App Service Managed Identity be used for SQL Login?
I'm fairly certain I know the answer to this from digging into it yesterday,...
Azure Synapse database refresh
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
how to write this query?
hi everyone I am not sure how to write the query that will produce...
Question of the Day
Fun with JSON I
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers