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20 Years of Compare

When we started SQLServerCentral, there were originally 7 of us. We all decided to "invest" $50 to get the site going. With this seed money, we paid for a VM that hosted both SQL Server and IIS. This was enough money to run the site for 6+ months, and we set about building an online educational community and trying to raise some revenue by selling advertising.

Our first customer was Redgate Software, and the primary reason that we approached them was SQL Compare. At the time, one of my partners was a very happy customer of SQL Compare and thought that others should know about it. The rest is history, with SQLServerCentral, Redgate, and SQL Compare growing and changing across the years.

That was 18 years ago, and Redgate turns 20 this year, having grown and changed quite a bit in that time. In conjunction with the celebration, we're releasing SQL Compare v14, with a Linux command line version. That's something I could never have conceived up in 2001 when we started SQLServerCentral. There are plenty of other features in the new version, and I'm amazed at how useful the SQL Compare technology has become two decades after its first release.

SQL Compare is the industry standard technology for comparing databases. It powers our Database DevOps automation tools as well as many manual processes that tens of thousands of customers run every day. From synchronizing work between developers to detecting drift to building rollback scripts, SQL Compare ensures that many of us can find out the state of the various instances in our environments. It's a simple technology, but one that hundreds of thousands of people depend on every day.

When I first heard of this product, I never imagined that this would be as popular a tool as it has become. The idea of comparing two databases to find the differences was something novel at one point. Today, it's become an indispensable part of many developers' workday. Join me today and wish Redgate and SQL Compare a Happy Birthday, and tune into SQL in the City Streamed later on today, where we'll talk a little about SQL Compare and its history.

Steve Jones - SSC Editor

Join the debate, and respond to today's editorial on the forums

Redgate SQL Compare
  Featured Contents
Stairway to ADF Logo

Provisioning ADS - Level 2 of the Stairway to Azure Data Factory

Andy Leonard from SQLServerCentral

In this next level of the Stairway to Azure Data Factory, learn how to build your first ADF environment.

Database Build Blockers: Mutually Dependent Databases

Additional Articles from Redgate

Phil Factor demonstrates a clever way to create 's...

Hiding What You Shouldn’t See

Additional Articles from SimpleTalk

In this week's SImple Talk editorial Kathi Kellenberger looks at data that should be hidden and how to get security right within your organization.

SQL Server Transaction Log Management eBook Download

Free eBook: SQL Server Transaction Log Management

Press Release from Redgate

When a SQL Server database is operating smoothly and performing well, there is no need to be particularly aware of the transaction log, beyond ensuring that every database has an appropriate backup regime and restore plan in place. When things go wrong, however, a DBA's reputation depends on a deeper understanding of the transaction log, both what it does, and how it works.

From the SQL Server Central Blogs - Query Performance Tuning with Filtered Statistics

Joyful Craftsmen from Joyful Craftsmen Blog

Introduction I recently got a call from our DBA telling me that the CPU usage is hitting 100% on the DB server and the ETL process runs for more...

From the SQL Server Central Blogs - Query Store stores dates as UTC

matthew.mcgiffen 73574 from Matthew McGiffen DBA

One of the powerful aspects of Query Store is the ability to directly query the DMVs for details of historical executions and performance. A key view for this is...


  Question of the Day

Today's question (by Steve Jones - SSC Editor):


Merging Multiple Dataframes

I want to merge multiple dataframes together in R. I have 4 of them and know about the merge() function. When I use this, how many dataframes can I merge at one time?

Think you know the answer? Click here, and find out if you are right.



  Yesterday's Question of the Day (by Steve Jones - SSC Editor)

Graph Concepts

What is the relationship between entities called in a graph database?

Answer: Edges

Explanation: The relationships between the entities, or nodes, are the edges. Ref: Graph Processing with SQL Server -

Discuss this question and answer on the forums




Database Pros Who Need Your Help

Here's a few of the new posts today on the forums. To see more, visit the forums.

SQL Server 2017 - Administration
business intelligence development studio(Bids) - Hello, I have a SQL 2017 and I want to use business intelligence development studio(Bids), I dont see the App on the start menu. Integration service are exist. Tanks!
SQL Server Upgrade - I have old physical SQL Server which is less than 2 yrs old, so we are planning to upgrade to SQL 2017/2019. So thinking of using the same old physical SQL Server for the upgrade. Would need to load the new windows version and SQL Server. Do you see any reason that it should not […]
SQL Server 2017 - Development
SSAS - Aggregation issue: “N/A” members be excluded from Excel “Grand Total " - We’ve build a Finance OLAP Cube in SSAS which is mostly used/browsed by Accountants. Due to a “self-service” policy that is followed, users are in the meantime required to make use of Excel (with a data connection to the cube) as their reporting and/or analysis tool. One of the dimensions, the Accounts dimension, contains the […]
SSIS - Adding Columns to existing table and load data - I am working in SSIS (Sql server version 2012) , I have a requirement to add two new columns to a destination table which already has five years of data. How can i add these two new columns and bring data to the destination table which already has 5 years of data. Thanks
Alert me Export table data to .MSG file using Stored Procedures or any plugin ? - Is it possible with a stored procedure to write/export/output the data as .msg outlook file using existing table data?
SQL SEREVR QUERY - I HAVE A TABLE called TBLGENDER LIKE BELOW IN THIS TABLE 2 people getting 8000,2 people getting 5500,2 people getting 3500 AND 4 people getting 5000 ID NAME GENDER SALARY CITY 1 SHIVA MALE 8000 LONDON 2 MAMATHA FEMALE 6000 SYDNEY 3 NIHAL MALE 5000 DELHI 4 ROHAN MALE 3500 DELHI 5 PANDA FEMALE 3500 […]
SQL Server 2016 - Development and T-SQL
Using log4net in a dll which is called via CLR function - Hello I am refactoring older code which is part of an SQL Server CLR Function call. The code has a horrible local logger implemented, I would like to use a standard logger such as log4net. What are the pros and cons of such an approach? Is it feasible? Has anyone done something similar before? Best […]
Issue with max() and aggregate, missunderstanding - Hi all, this is my first post here and I've been looking and trying to understand this for hours the various ways people have tried to get around this issue. My trouble is as follows. I have a database with three tables linked together by 'DocumentNo'. Two main linked tables which output all rows with […]
Help with Query Results and Collation - I should know the answer to these questions, but I'm having trouble with a couple of my queries. First, my goal here is to compare data from a table in a source database with data from a table in another database to see whether there are any differences. Here's a simple example: DECLARE @TableA TABLE […]
Administration - SQL Server 2014
SQL 2014 (or any other versions) Standard - ~Embedded Licensing~ - Anyone have any insights on how this licensing works and what the "Use Rights" are? I can't seem to find much about it. Most I gathered (and I could be wrong) is it is dedicated solely to the application that uses it. No other databases can be on it for any other reasons and no […]
SQL 2012 - General
MEMORY CONSUMPTION SQL 2012 - hi all, as you can see in attachment sql take 122  giga memory. and in report consmtion i see only  94 taken  by sql . ( this report generated from sql) and idea where 30 giga  is hidden :)? and how  i can seem them ? thanks  alot sharon  
SSIS adding new columns to existing table - Hello All, I am working in SSIS (Sql server version 2012) , I have a requirement to add two new columns to a destination table which already has five years of data. How can i add these two new columns and bring data to the destination table which already has 5 years of data. Thanks
How can I convert %5B and %5D to [ and ] in a string - Hi, I have a string nvarchar(255) and I am try to convert the ASCII codes in it and also extract part of the string. Here is an example of a value: urn:ADL:CC_LB_SF_EN_D_C_%5BLB_LS_TCD%5D_%5BLB_LS_CotCF%5D_28_1 This is what I would like to convert it to: urn:ADL:CC_LB_SF_EN_D_C_[LB_LS_TCD]_[LB_LS_CotCF]_28_1 Then I would like to select what is between urn:ADL: and the […]
SSRS 2014
Simple Cascade Parameters not updating - I have a parameter called SearchCriteria with four Available Values R, W, M, or A for Range of Dates, Last Week, Last Month, or Last Year respectively.  I have another parameter to include a statistics Table at the End of the Report.  For all but the Range of dates I want the stats table to […] Website Issues
A while ago I stopped receiving my daily and weekly newsletters. - A while ago I stopped receiving my daily and weekly newsletters.  I am not sure why.  Today as a test I unchecked the selections, saved the unchecked values and rechecked the selections.  I've done that before and it didn't help.  Can you please let me know why I am no longer receiving these newsletters. It's […]


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