Tag: value

Feed: Planet MySQL; Author: Michael McLaughlin; -- Use sakila database. USE sakila;   -- Add a prequel_id column to the sakila.film table. ALTER TABLE film ADD (series_name varchar(20)), ADD (series_number int unsigned), ADD (prequel_id int unsigned);   -- ALTER TABLE film   -- Set primary to foreign key local variable. SET @sv_film_id = 0;   -- Insert Harry Potter films in sakila.film table with classic values clause. INSERT INTO film ( title , description , release_year , language_id , original_language_id , rental_duration , rental_rate , length , replacement_cost , rating , special_features , last_update , series_name , series_number , prequel_id ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Bill Schmarzo. I’ve been reading the interesting and soul-searching (from a data scientist perspective) book from Cathy O’Neil titled “Weapons of Math Destruction”, or WMD as used in the book.  The book provides several real-world examples of how Big Data and Data Science – when not properly structured – can lead to ethically-wrong unintended consequences.  Chapter 3 “Arms Race: Going to College” describes how the college ranking system developed by “US News & World Report” in 1983 has created its own self-fulfilling, mis-aligned ecosystem. Because of the influence the “US News ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Sharmistha Chatterjee. Introduction and Motivation It is becoming increasingly common for organizations to collect very large amounts of data over time, and to need to detect unusual or anomalous time series. For example, Yahoo has banks of mail servers that are monitored over time. Many measurements on servers/IoT device performances are collected every hour for each of thousands of servers in order to identify servers/devices that are behaving unusually. Python library tsfeature helps to compute a vector of features on each time series, measuring different characteristic-features of the series. The features may include lag correlation, the strength ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Aileen Scott. Data scientist! The most awaited job for candidates who’ve got the affinity for statistics and mathematics. With data growing at an exponential rate, data science now becomes an appealing career path. Data science is super technical, interesting, and tough to get into. However, making an entrance as a data scientist may not be as challenging as you think. First, know that data is being generated in the blink of an eye. To be precise, according to the “2021 Robert Half Technology Salary Guide” data scientist touts to be one ... Read More

Feed: SAS Blogs. Author: Lindsay Marshall. You look to the cloud for several reasons – to meet your cloud-first strategy, for scalability or to adapt quickly to changing business demands. Maybe all three.   Perhaps you need offerings to be available in various regions, or to reduce application response time and improve latency problems. Perhaps regulatory and compliance constraints are limiting (or mandating) the physical locations where your data can be stored and transmitted. This is why having a global data footprint is beneficial.  An important partnership for modern managed services   Managed services enable you to better address geographical constraints while staying on current software releases, improving the efficiency and dependability of your software, as well as freeing your IT staff to work on more strategic projects.    In June, 2020, SAS announced a strategic partnership with Microsoft .  An important aspect of our partnership is the ability to migrate and ... Read More

Feed: R-bloggers. Author: Theory meets practice.... Abstract: Slides, R code and video lectures of our 2020 The Mathematics and Statistics of Infectious Disease Outbreaks summer course at Stockholm University are made available to a wider audience. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The markdown+Rknitr source code of this blog is available under a GNU General Public License (GPL v3) license from github. Introduction During the 2020 summer Tom Britton and I gave a course on The Mathematics and Statistics of Infectious Disease Outbreaks at the Department of Mathematics, Stockholm University, Sweden. Pre-requisites for the ... Read More

Feed: Planet PostgreSQL. Well, we've already discussed isolation and made a digression regarding the low-level data structure. And we've finally reached the most fascinating thing, that is, row versions (tuples).Tuple headerAs already mentioned, several versions of each row can be simultaneously available in the database. And we need to somehow distinguish one version from another one. To this end, each version is labeled with its effective "time" (xmin) and expiration "time" (xmax). Quotation marks denote that a special incrementing counter is used rather than the time itself. And this counter is the transaction identifier.(As usual, in reality this is more ... Read More

Feed: AWS Public Sector Blog. Author: Subash D'Souza. Modern data engineering covers several key components of building a modern data lake. Most databases and data warehouses, to an extent, do not lend themselves well to a DevOps model. DataOps grew out of frustrations trying to build a scalable, reusable data pipeline in an automated fashion. DataOps was founded on applying DevOps principles on top of data lakes to help build automated solutions in a more agile manner. With DataOps, users apply principles of data processing on the data lake to curate and collect the transformed data for downstream processing. One ... Read More

Feed: Recent Announcements. To add tags, you can go the the Amazon CodeGuru dashboard within the AWS console and navigate to the “Associate repository” console page. After choosing the repository provider, you will now see a new “Add new tag” option. In the “Key”, you can enter a name for the tag and add an optional value for the tag in “Value”. You can also add more tags by choosing the “Add tag” option again. Additionally, you can create a policy that denies or allows actions on code reviews based on their associated repository's resource tags. For example, you can ... Read More

Feed: MariaDB Knowledge Base Article Feed. Author: . Some of JSON functions accept JSON Path expressions. MariaDB defines path as follows: JSON Path Syntax path : '$' [step]* The $ symbol represents the context item. The search always starts from the context item, because of that the path always starts with $. Then, it is followed by zero or more steps, which select element(s) in the JSON document. A step may be one of the following: Object member selector Array element selector Wildcard selector Object member selector To select member(s) in a JSON object, one can use one of the ... Read More