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GCC vs LLVM Q3 2017: Active Developer Counts

Nick Desaulniers

Martin had data comparing gcc to llvm from Q4 2015, but I wanted to see what the data looked like now in Q3 2017 and wanted to share my findings; simply rerunning the numbers. Either way, I’m thankful to have not one, but two high quality open source C/C++ compilers. Luckily Martin open sourced.

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Fundamentals of table expressions, Part 7 – CTEs, optimization considerations

SQL Performance

Here’s the attempted solution using a CTE: WITH C AS. ( Using our trick with the TOP filter in the inner query, you prevent the unnesting of the table expression, like so: WITH C AS. ( The following code returns only shippers with a maximum order date that is on or after January 1 st , 2018: USE PerformanceV5 ; WITH C AS. (

C++ 140
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2017 Wheel of Fortune

J. Paul Reed

I mentioned last week I’d have 2017 predictions for you… well, last week. So, what do I think 2017 will have in store for us? STABLE This prediction was originally published in a larger T echBeacon piece on 2017 DevOps predictions. But we’ll see this mechanism happen in 2017. Prediction #1: DevOps Will Be Declared 1.0-STABLE

DevOps 40
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PostgreSQL vs. Oracle: Difference in Costs, Ease of Use & Functionality

Scalegrid

Recognized as the fastest growing database by popularity, PostgreSQL was named the DBMS of the year in both 2018 and 2017 by DB-Engines, and continues to grow in popularity in 2019. Objective C. PostgreSQL is an open source object-relational database system with over 30 years of active development. SolarisUnix. Supported Languages.

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This spring: High-Performance and Low-Latency C++ (Stockholm) and ACCU (Bristol)

Sutter's Mill

I don’t get to Europe very often apart from ISO C++ standards meetings, but this spring I’ve been able to accept invitations for two English-language European events in the last week of April. Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). Will C++ continue growing forever? Description.

Latency 52
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T-SQL bugs, pitfalls, and best practices – pivoting and unpivoting

SQL Performance

As an example with our task, suppose that you don't realize that the grouping element is determined implicitly, and you come up with the following query: SELECT shipperid , [ 2017 ] , [ 2018 ] , [ 2019 ] FROM Sales. So you're expecting to see only three rows in the result. 830 rows affected).

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Solaris to Linux Migration 2017

Brendan Gregg

Hit Ctrl-C to end. ^C C operation = 'read' usecs : count distribution 0 -> 1 : 0 | | 2 -> 3 : 0 | | 4 -> 7 : 4479 | *| 8 -> 15 : 1028 | | 16 -> 31 : 14 | | 32 -> 63 : 1 | | [.]. Many new tools can now be written, and the main toolkit we're working on is [bcc]. Tracing ZFS operation latency.