Les merveilleux bienfaits du bicarbonate de soude chemins de santéalexajonese
Découvrez Les Merveilleux Bienfaits du Bicarbonate de Soude!
Cécile et Adrien, parents d’une petite fille, travaillent en boutique bio depuis plusieurs années et sont également formateurs et responsables d’une association qui propose de nombreuses conférences et ateliers sur différentes approches de médecines douces, sur la santé alimentaire et sur l’économie sociale et solidaire. Ils sont passionnés par le jardinage et toutes les formes d’agricultures écologiques; designers en Permaculture, ils sont de fervents défenseurs de la nature.
Les merveilleux bienfaits du bicarbonate de soude chemins de santéalexajonese
Découvrez Les Merveilleux Bienfaits du Bicarbonate de Soude!
Cécile et Adrien, parents d’une petite fille, travaillent en boutique bio depuis plusieurs années et sont également formateurs et responsables d’une association qui propose de nombreuses conférences et ateliers sur différentes approches de médecines douces, sur la santé alimentaire et sur l’économie sociale et solidaire. Ils sont passionnés par le jardinage et toutes les formes d’agricultures écologiques; designers en Permaculture, ils sont de fervents défenseurs de la nature.
The document is a presentation about new features in PostgreSQL 9.6. It discusses several major new features including parallel queries, avoiding VACUUM on all-frozen pages using freeze maps, monitoring the progress of VACUUM, phrase full text search, multiple synchronous replication, remote_apply synchronous commit, and improved capabilities of the postgres_fdw extension including pushing down sorts, joins, updates and deletes to remote servers.
FOSSASIA PGDAY ASIA 2017 presentation material.
FOSSASIA PGDAY ASIA 2017 の発表資料です。
In this presentation, I will talk about the following two topics.
* Considerations for securing a database system.
* Current status of database audit on PostgreSQL
FOSSASIA 2017
http://2017.fossasia.org/
PGDAY ASIA 2017
http://2017.pgday.asia/
NTT pgaudit
https://github.com/ossc-db/pgaudit
Project Rhino: Enhancing Data Protection for HadoopCloudera, Inc.
Learn the history of Project Rhino and its importance, the progress that’s been made so far (including a deep dive into the new security features announced with CDH 5.3), and what’s next for Hadoop security.
Study: The Future of VR, AR and Self-Driving CarsLinkedIn
We asked LinkedIn members worldwide about their levels of interest in the latest wave of technology: whether they’re using wearables, and whether they intend to buy self-driving cars and VR headsets as they become available. We asked them too about their attitudes to technology and to the growing role of Artificial Intelligence (AI) in the devices that they use. The answers were fascinating – and in many cases, surprising.
This SlideShare explores the full results of this study, including detailed market-by-market breakdowns of intention levels for each technology – and how attitudes change with age, location and seniority level. If you’re marketing a tech brand – or planning to use VR and wearables to reach a professional audience – then these are insights you won’t want to miss.
UX, ethnography and possibilities: for Libraries, Museums and ArchivesNed Potter
1) The document discusses how the University of York Library has used various user experience (UX) techniques like ethnographic observation and interviews to better understand user needs and behaviors.
2) Some changes implemented based on UX findings include installing hot water taps, changing hours, and adding blankets - aimed at improving the small details of user experience.
3) The presentation encourages other libraries, archives and museums to try incorporating UX techniques like behavioral mapping and cognitive interviews to inform design changes that enhance services for users.
The document discusses designing teams and processes to adapt to changing needs. It recommends structuring teams so members can work within their competencies and across projects fluidly with clear roles and expectations. The design process should support the team and their work, and be flexible enough to change with team, organization, and project needs. An effective team culture builds an environment where members feel free to be themselves, voice opinions, and feel supported.
Raspberry PI using Linux. But it is easy to use who does not know Linux. So sometimes Raspberry PI is dangerous. We propose for industry, TOPPERS/SSP is the just you use. If some spec are too small, please try to use TOPPERS/ASP, TOPPERS/HRP2 or TOPPERS/ATK2. We use HAZOP and TRIZ for safety and security analysis.
JavaOne 2017 報告会 at Japan Java User Group
デモのコード:https://github.com/ykubota/jigsaw-sample_jp
イベントページ:https://jjug.doorkeeper.jp/events/66256
Stream: https://www.youtube.com/watch?v=XT2tIh9r6Eo
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The document discusses transparent data encryption in PostgreSQL. It describes threats to unencrypted database servers like privilege abuse and SQL injections. It then covers using buffer-level encryption in PostgreSQL to encrypt data in shared memory and at rest on disk. This provides encryption with less performance overhead than per-query encryption. The document proposes encrypting WAL files, system catalogs, and temporary files in addition to table data for stronger security. It also discusses key management with a two-tier architecture involving master and tablespace keys.
Transparent Data Encryption in PostgreSQL and Integration with Key Management...Masahiko Sawada
The document discusses transparent data encryption in PostgreSQL databases. It proposes encrypting data at the tablespace and buffer levels for minimal performance impact. A two-tier key architecture with separate master and data encryption keys enables fast key rotation. Integrating with key management systems provides flexible and robust key management. The solution aims to securely encrypt database content with low overhead.
PostgreSQL uses MVCC which creates multiple versions of rows during updates and deletes. This leads to bloat and fragmentation over time as unused row versions accumulate. The VACUUM command performs garbage collection to recover space from dead rows. HOT updates and pruning help reduce bloat by avoiding index bloat during certain updates. Future improvements include parallel and eager vacuuming as well as pluggable storage engines like zheap to further reduce bloat.
The document discusses improving the efficiency of PostgreSQL vacuums. It proposes performing vacuums in parallel using multiple worker processes to shorten execution time. It also suggests deferring index vacuums by spoiling dead tuple IDs to a threshold to reduce the number of expensive index vacuum operations. Range vacuums are proposed to vacuum specific blocks to minimize disruption to transactions while still making progress.
The document discusses FDW-based sharding in PostgreSQL. It provides an overview of what database sharding and FDW-based sharding are. It then demonstrates FDW-based sharding in PostgreSQL 9.6, covering how data is inserted and queried across foreign child tables. The document outlines several challenges for FDW-based sharding like distributed transactions and asynchronous execution. It also reviews key techniques being developed for PostgreSQL 10 like push down optimizations and declarative partitioning.
This document provides an overview of the VACUUM command in PostgreSQL. It discusses what VACUUM does, the evolution of VACUUM features over time, visibility maps, freezing tuples, and transaction ID wraparound. It also covers the syntax of VACUUM, improvements to anti-wraparound VACUUM, and new features like progress reporting and the freeze map.