Miscellaneous

Technical Article

Calculate distance between two points

  • Script

The calculation of distance between two points using standard spherical geometry can be inaccurate for short distances (ten miles or less) because the sine function of very small angles approaches zero. The haversine approach (http://en.wikipedia.org/wiki/Haversine_formula) turns this around, so it is very accurate at small distances but has larger errors (about ten miles) for points […]

4 (1)

You rated this post out of 5. Change rating

2006-05-18 (first published: )

685 reads

Technical Article

Determine Distance Between Any Two Locations

  • Script

This function allows you to calculate the distance in miles or kilometers between any two points on the earth. I created to calculate the distance between two zip codes but is can be used for any two coordinates for which latitude and longitude is known.NOTE: A database for the coordinates of any US postal code […]

5 (4)

You rated this post out of 5. Change rating

2006-04-25 (first published: )

1,267 reads

Technical Article

Update a table column with a sequence number v3

  • Script

Both Sachinvaishnav and Mark Chad have submitted scripts to populate a column with a sequence number. The first solution uses a cursor; the second uses the SQL 2005 ROW_NUMBER() function.v1:http://www.sqlservercentral.com/scripts/viewscript.asp?scriptid=1643v2:http://www.sqlservercentral.com/scripts/viewscript.asp?scriptid=1664Since neither script requires a specific order for the sequence number, the same result can be achieved with a single UPDATE statement.

You rated this post out of 5. Change rating

2006-04-26 (first published: )

392 reads

Technical Article

Securing Your WCF Service

  • Article

In this article I will show you how you can implement security on a WCF service. There are many options and extensibility points for implementing security in WCF. You can also use specific products, such as the Windows 2003 Server Authorization Manager, together with WCF to implement the authorization requirements of a solution. Out of the box, WCF supports Windows credentials, Username Tokens and X.509 Digital Certificates as security credentials.

2006-04-03

1,557 reads

Blogs

T-SQL Tuesday #190–Mastering a New Technical Skill

By

It’s time for T-SQL Tuesday again and this time Todd Kleinhans has a great...

Getting Started with the MSSQL AI Agent in VS Code

By

Recently I was working in VS Code and I saw a walkthrough for the...

Summer Speaking Summary 2025

By

In the blink of an eye, summer has passed. I don’t know about you,...

Read the latest Blogs

Forums

Azure elastic query credential question

By cphite

I am trying to check out elastic query between two test instances we have...

Change Tracking Data Retention Options

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Change Tracking Data Retention Options

Requiring Technical Debt Payments

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Requiring Technical Debt Payments

Visit the forum

Question of the Day

Change Tracking Data Retention Options

If I am running this code:

ALTER DATABASE AdventureWorks2017 SET CHANGE_TRACKING = ON (CHANGE_RETENTION=4 xxx);
What are the possible choices for xxx?

See possible answers