Lookup Table

เวลาดึงข้อมูลจากฐานมาลงไว้ใน dataset ของเรา นั้น ผมมักจะเลือกใช้เป็น UniQuery เพื่อ query เอาเฉพาะที่ใช้มาวาง หรือใช้ UniTable ไปเลยกรณีเป็น Lookup table วันนี้ผมเอา Tips เล็กๆน้อยๆมาฝากกันครับ เทคนิคที่ว่าก็คือ การใช้ประโยชน์จาก Relation นั่นเอง ตัวอย่างในวันนี้จะเป็นการที่เรา Query ข้อมูลด้วย Parameter ใน dataset A แล้ว แล้ว Dataset ฺB ที่ Relation กันอยู่จะจะเอา key ที่เชื่อมกันเป็นเงื่อนไขในการ Query ข้อมูล เช่น

Lookups in Apache Druid are a way to replace values by keys in datasources, without needing to actually change anything in the datasources. This is extremely useful for repeatable data. Common examples are replacing a country-code with the country name, language-code with the language name, and so on. For me…

Bullet points: 1. Halo2 uses the lookup argument technique, allowing to run lookup on any random sets; 2. It is of more universality than the Plookup technique because the latter requires the same types of elements while the sizes can be different; 3. Compared with the permutation argument of Plonk, it is not required to specify the index for the permutation here; 4. For the main branch of corresponding Halo2 code, the commit is: a7cd600eb60b1528159b92af5e426adcc615de1a

“Eğer SSIS ve Lookup terimlerine aşinaysanız ve sadece uygulama kısmını öğrenmek istiyorsanız buradan devam edebilirsiniz.” SQL SERVER INTEGRATION SERVICES nedir? Çok çeşitli veri dönüştürme ve taşıma görevlerini gerçekleştirmek için kullanılabilen bir Microsoft SQL Server bileşenidir. Başarılı bir veri ambarı çözümü olan SQL SERVER INTEGRATION SERVICES, değişik veri kaynaklarından çekilen verilerin destination’a yani hedef kaynağa ulaşımında…

ScaNN is a vector similarity search algorithm. This blog post introduces the relationship between ScaNN and 4-bit PQ. — Introduction Around 1 year ago (2020), Google published a very impressive blog post and paper. Google AI Blog: Announcing ScaNN: Efficient Vector Similarity Search Guo et al., Accelerating Large-Scale Inference with Anisotropic Vector Quantization. ICML 2020 Scalable Nearest Neighbors (ScaNN) is a vector similarity search algorithm and it is used in…

For a long time, one of the Achilles heels for Power automate desktop was the lack of lookup functionality in Power Automate Desktop. The only way to find out if a certain value exists in an excel or data table was to loop through the entire data table. With the…

Today’s blog post continues my series on computer poker with a brief exploration of lookup tables and perfect hashes. Huge thanks and acknowledgments are in order before we begin to Kevin Suffecool, Paul Senzee, and Mike Benson — without a doubt the founding fathers of modern computer poker. …

In this video i will give 4 simple examples of using Scilab Xcos for simulation. Examples: Display a simple sine wave Algebraic loop example Example for lookup table Example for derivative of time dependent function (derivative of x²: 2x)

I have prepared an article about a transitive closure in Power Query. I wanted to publish the article already, but I decided to wait a little bit and write another one about a performance boost I’ve used in the code. It is a lookup table in Power Query. Imagine the…