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| | | The March of AI Machine learning and AI systems are becoming more and more popular all the time. The constant onslaught of media articles and hype is pressuring more and more companies to experiment with AI systems. Whether these techniques work or not, no manager wants to be the one that has ignored the trend. A failed machine learning venture might be preferable to the lack of any project in the eyes of many in upper management. Our vendors press as well, after all, sales are on the line. I wasn't sure how useful the R language would be inside SQL Server, but I am amazed at the effort and popularity of R among SQL Server professionals. R, and possibly Python soon, are becoming integrated into every product and tool from Microsoft, as well as other vendors. Every month I see more and more people experimenting and learning how to use R for a wider variety of tasks, from analyzing disk space and database performance to extrapolating business measures. Most of us aren't skilled enough in math and statistics to really develop and build intelligent systems. We don't have the background, or we haven't worked in those areas for a long time. However, many of us can learn to work with ML and AI systems, managing the models, integrating the code others write into our applications. I do think there is value in learning a bit about these technologies, though I don't think you need to become an expert. Some of you might want to be experts, and I wish you the best of luck on your journey. I do believe that AI will change the world. It's going to become a larger and larger part of many systems and processes throughout the world. These intelligent systems will press and push humans in ways that we don't expect and that we might not like. For us data professionals, we will be at the heart of many of these changes, with opportunities to grow our careers we might never had considered. Steve Jones from SQLServerCentral.comJoin the debate, and respond to today's editorial on the forums |
| The Voice of the DBA Podcast Listen to the MP3 Audio ( 3.0MB) podcast or subscribe to the feed at iTunes and Libsyn.  The Voice of the DBA podcast features music by Everyday Jones. No relation, but I stumbled on to them and really like the music. |
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| | |  | Michael Williams from SQLServerCentral.com The Execute Package Task is an essential tool for any SSIS developer. Learn how to get the most from it. More » |
 | Additional Articles from Database Journal There are multiple ways to accomplish a database restore. But if you wanted to restore a database from a script how might you accomplish that task quickly and accurately? More » |
 | Grant Fritchey from Redgate "There have been, and, in our increasingly connected and interconnected world, will continue to be, a large number of spectacular failures with technology. I want to point the finger at all of us for these failures. It’s not Development. It’s not Operations. It’s us. We’re in it together. If we don’t communicate with each other, share our knowledge, we’re going to mess up horribly." More » |
 | kleegeek from SQLServerCentral Blogs VM snapshots are one of the best virtualization features ever. But…have you ever had a VMware vSphere or Hyper-V snapshot... More » |
| | Grant Fritchey from SQLServerCentral Blogs SQL Server provides multiple ways to perform most functions. In order to maximize your understanding of how SQL Server works... More » |
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| | | Today's Question (by Stewart Campbell): You are tasked with identifying the maximum length of data contained in some of the larger tables in your database. To achieve this, you write the following script: DECLARE @TableName SYSNAME = 'TheTable', @Col SYSNAME, @SQL NVARCHAR(1000) = '', @Max INT; DROP TABLE IF EXISTS #Cols; CREATE TABLE #Cols (ColumnName SYSNAME, MaxLen INT); INSERT #Cols (ColumnName) SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_Name = @TableName AND DATA_TYPE LIKE '%varchar'; DECLARE MaxCol CURSOR LOCAL FAST_FORWARD FOR SELECT ColumnName FROM #Cols; OPEN MaxCol; FETCH NEXT FROM MaxCol INTO @Col; WHILE @@FETCH_STATUS = 0 BEGIN SELECT @SQL = N'SELECT @Max = MAX(DATALENGTH(' + QUOTENAME(@Col) + ')) FROM ' + QUOTENAME(@TableName); EXEC sp_executesql @SQL, N'@Max INT OUTPUT', @Max OUTPUT; UPDATE #Cols SET MaxLen = @Max WHERE ColumnName = @Col; FETCH NEXT FROM MaxCol INTO @Col; END CLOSE MaxCol; DEALLOCATE MaxCol; SELECT * FROM #Cols; What, in your opinion, will be the result of the script execution? Assumptions: - Running SQL Server 2016 or greater
- TheTable exists, has nvarchar and/or varchar columns, and is populated with copious amounts of data.
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| Yesterday's Question of the Day |
| Yesterday's Question (by Steve Jones): I write this in R: Exclamation <- c('SQL', 'Server', 'is', 'great!') If I then run this, what is returned? Exclamation[1]
Answer: SQL Explanation: A vector, similar to an array, in R is 1 based. Therefore the first element has 1, not 0, as an index. Ref: Indexing - click here
» Discuss this question and answer on the forums |
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| Database Pros Who Need Your Help |
| Here's a few of the new posts today on the forums. To see more, visit the forums.
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