Cassandra Chapter Three – Data Model
Updated: 2012-12-31 05:23:00
An Associative Array is one of the most basic and useful data structures where each value is identified by a key, usually a string.
An Associative Array is one of the most basic and useful data structures where each value is identified by a key, usually a string.
The year 2012 was the most interesting year. If I start listing what was special about this year – I think it will take me 2-3 days to just write a blog post about this subject. Let me pick few things which I would like to specifically call out. SQL in Sixty Seconds Series We [...]
THE SQL Server Blog Spot on the Web Welcome to SQLblog.com The SQL Server blog spot on the web Sign in in Rob Farley Entire Site Search Home Blogs Downloads Opml Rob Farley Rob Farley Owner Principal with LobsterPot Solutions a MS Gold Partner consulting firm Microsoft MVP SQL Server and leader of the SQL User Group in Adelaide , Australia . Rob is also a Director of PASS , and runs training courses around the world in SQL Server and BI . topics The SQL Query Optimizer when Logical Order can get it wrong It’s very easy to get in the habit of imagining the way that a query should work based on the Logical Order of query processing the idea that the FROM clause gets evaluated first , followed by the WHERE clause , GROUP BY , and so on finally ending with whatever is in the SELECT clause . We
Here is the question received from user – the email was long and had multiple request from reader to resolve this error. Scenario: The user was trying to import data from Excel to tables in SQL Server Database. Every time he attempted to import the data he faced following error. He tried using SSIS package [...]
Here is the list of selected articles of SQLAuthority.com across all these years. Instead of just listing all the articles I have selected a few of my most favorite articles and have listed them here with additional notes below it. Let me know which one of the following is your favorite article from memory lane. [...]
Regular readers who are familiar with my blog will be also familiar with my interest in NuoDB. It is a very innovative new age database which follows 100% SQL, ACID and Elastically Scalability. Here is an earlier article on this subject where we explain why sharing will no more required due to the implementation of [...]
I recently came across an organization who had very interesting infrastructure setup. Their business domains is analytics. They process millions of the records and how many clients who have case sensitive tags on their server which they want to measure. However, there are many places they do not want to care about case sensitivity. They [...]
THE SQL Server Blog Spot on the Web Welcome to SQLblog.com The SQL Server blog spot on the web Sign in in Rob Farley Entire Site Search Home Blogs Downloads Opml Rob Farley Rob Farley Owner Principal with LobsterPot Solutions a MS Gold Partner consulting firm Microsoft MVP SQL Server and leader of the SQL User Group in Adelaide , Australia . Rob is also a Director of PASS , and runs training courses around the world in SQL Server and BI . topics SQL Replication demystified I spent some time explaining SQL Server Replication to someone recently . They said they hadn’t ever really understood the concepts , and that I’d managed to help . It’s inspired me to write a post that I wouldn’t normally do a 101” post . I’m not trying to do a fully comprehensive piece on replication , just enough to
Whenever I am suggesting something which changes how database works or the existing status of the database, my suggestion along with it is to take the database backup before making such changes. If the changes are in configurations, that can be easily revert but if the changes are such that it will impact the data, [...]
Some questions never get old. Let me list a few of them. As the year 2012 is about to end, today I will talk about three of the most asked questions to me in an email. Q 1: What is AdventureWorks and where can I get it? A 1: AdventureWorks is sample database build by [...]
Here is the interesting conversation I recently heard between two teammates in one of the organizations I visited. DBA Jr: I can’t take transactional backup of the database. DBA Sr: What is the recovery model? DBA Jr: How to find the recovery model? DBA Sr: Go to SSMS >> Right Click on Your Database >> [...]
Readers of this blog will know that I recently attended SQL Server (PASS) Summit 2012. There were, of course, a lot of fascinating subjects and people, but let me talk about one of my favorites right now. Ted Kummert, corporate vice president of the Data Platform group at Microsoft, announced that the new version of [...]
Here is the list of selected articles of SQLAuthority.com across all these years. Instead of just listing all the articles I have selected a few of my most favorite articles and have listed them here with additional notes below it. Let me know which one of the following is your favorite article from memory lane. [...]
Almost every computer you can buy these days will come with Microsoft Windows installed on it automatically. Also installed automatically – Internet Explorer, Microsoft’s web browser. Many of us use this browser without a second thought, but in this latest Personal Technology Tip and Trick I thought I’d expand your horizons and talk about my [...]
A common question – I often get from Oracle/MySQL Professionals: “What is the Equivalent to CURRENT_TIMESTAMP in SQL Server?” Here is a common question I often get from SQL Server Professionals: “What are differences between Difference Between CURRENT_TIMESTAMP and GETDATE ()?” Very simple question but have showed up so frequently that I feel like to write about [...]
Developers often face situations when they find their column have duplicate records and they want to delete it. A good developer will never delete any data without observing it and making sure that what is being deleted is the absolutely fine to delete. Before deleting duplicate data, one should select it and see if the [...]
Backup and Restore are very interesting concepts and one should be very much with the concept if you are dealing with production database. One never knows when a natural disaster or user error will surface and the first thing everybody wants is to get back on point in time when things were all fine. Well, [...]
Some people call it laziness, some will call it efficiency, some think it is the right thing to do. At any rate, tools are meant to make a job easier, and I like to use various tools. If we consider the history of the world, if we all wanted to keep traditional practices, we would [...]
A very common question I often receive - Do we have SQL Server User Group in Bangalore? Yes! SQL Bangalore – we had very first meeting on Nov 24, 2012 and very soon we are going to have another User Group meeting. The goal is to keep up a monthly rhythm of User Group meeting. [...]
Here is the list of selected articles of SQLAuthority.com across all these years. Instead of just listing all the articles I have selected a few of my most favorite articles and have listed them here with additional notes below it. Let me know which one of the following is your favorite article from memory lane. [...]
Earlier we had an excellent contest ran with the help of Embarcadero Technologies. We had two different contests on the same day sponsored by the kind folks at Embarcadero. Here are the details of the winners. 1) Win USD 25 Amazon Gift Cards (10 Units) We had announced that we will award USD 25 Amazon Gift Cards [...]
Two years ago I spoke at Southeast Asia SharePoint Conference 2011, Singapore and I had a fantastic time to present to the Singapore audience. The session was very well received and lots of interest was generated. The event is back again this year and with much bigger scale. I will be presenting on SQL Server and [...]
Today is 12/12/12 – I am not sure when will I write this kind of date again – maybe never. This opportunity comes once in a lifetime when we have the same date, month and year all have same digit. December 12th is one of the most fantastic day in my personal life. Four years [...]
THE SQL Server Blog Spot on the Web Welcome to SQLblog.com The SQL Server blog spot on the web Sign in in Buck Woody Entire Site Search Home Blogs Downloads Opml Buck Woody Carpe Datum I Could Sure Use Some Windows Azure Code Samples There are multiple ways to learn , and one of the most effective is with examples . You have multiple options with Windows Azure , including the Software Development Kit the Windows Azure Training Kit and now another one the Microsoft All-In-One Code Framework a free , centralized code sample library driven by developers' real-world pains and needs . The goal is to provide customer-driven code samples for all Microsoft development technologies , and Windows Azure is . included Once you hit the site , you download an EXE that will create a web-app based
Here is the question received just this morning. “Pinal, Our application is much different than other application you might have come across. In simple words, I would like to call it Asynchronous Updated Application. We need your quick opinion about one of the situation which we are facing. From business side: We have bidding system [...]
As a regular reader of my blog – you must be aware of that I love to write books and talk about various subjects of my book. The founders of Koenig Solutions are my very old friends, I know them for many years. They have been my biggest supporter of my books. Coming weekend they [...]
Datatypes are very important concepts of SQL Server and there are quite often need to convert them from one datatypes to another datatype. I have seen that deveoper often get confused when they have to convert the datatype. There are two important concept when it is about datatype conversion. Implicit Conversion: Implicit conversions are those [...]
Here is the list of selected articles of SQLAuthority.com across all these years. Instead of just listing all the articles I have selected a few of my most favorite articles and have listed them here with additional notes below it. Let me know which one of the following is your favorite article from memory lane. [...]