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Exam Code: PGCES-02 Practice test 2022 by Killexams.com team
PGCES-02 PostgreSQL CE 8 Silver

PostgreSQL CE is a certification test for PostgreSQL engineers who are involved in system development, administration, maintenance, etc.

The first English version of PostgreSQL was released on March, 2005, and was based on PostgreSQL 7.4. The existing test to be released this time will be based on PostgreSQL 8.0, which includes PITR, Tablespace and so on.

The test can be taken at the Peason VUE testing center nearest to you. Please visit Pearson VUE web site for details.

PostgreSQL is a powerful, open source object-relational database system that uses and extends the SQL language combined with many features that safely store and scale the most complicated data workloads. The origins of PostgreSQL date back to 1986 as part of the POSTGRES project at the University of California at Berkeley and has more than 30 years of active development on the core platform.

PostgreSQL has earned a strong reputation for its proven architecture, reliability, data integrity, robust feature set, extensibility, and the dedication of the open source community behind the software to consistently deliver performant and innovative solutions. PostgreSQL runs on all major operating systems, has been ACID-compliant since 2001, and has powerful add-ons such as the popular PostGIS geospatial database extender. It is no surprise that PostgreSQL has become the open source relational database of choice for many people and organisations.

PostgreSQL comes with many features aimed to help developers build applications, administrators to protect data integrity and build fault-tolerant environments, and help you manage your data no matter how big or small the dataset. In addition to being free and open source, PostgreSQL is highly extensible. For example, you can define your own data types, build out custom functions, even write code from different programming languages without recompiling your database!

PostgreSQL tries to conform with the SQL standard where such conformance does not contradict traditional features or could lead to poor architectural decisions. Many of the features required by the SQL standard are supported, though sometimes with slightly differing syntax or function. Further moves towards conformance can be expected over time. As of the version 12 release in October 2019, PostgreSQL conforms to at least 160 of the 179 mandatory features for SQL:2016 Core conformance. As of this writing, no relational database meets full conformance with this standard.

Below is an inexhaustive list of various features found in PostgreSQL, with more being added in every major release:

Data Types
Primitives: Integer, Numeric, String, Boolean
Structured: Date/Time, Array, Range, UUID
Document: JSON/JSONB, XML, Key-value (Hstore)
Geometry: Point, Line, Circle, Polygon
Customizations: Composite, Custom Types
Data Integrity
UNIQUE, NOT NULL
Primary Keys
Foreign Keys
Exclusion Constraints
Explicit Locks, Advisory Locks
Concurrency, Performance
Indexing: B-tree, Multicolumn, Expressions, Partial
Advanced Indexing: GiST, SP-Gist, KNN Gist, GIN, BRIN, Covering indexes, Bloom filters
Sophisticated query planner / optimizer, index-only scans, multicolumn statistics
Transactions, Nested Transactions (via savepoints)
Multi-Version concurrency Control (MVCC)
Parallelization of read queries and building B-tree indexes
Table partitioning
All transaction isolation levels defined in the SQL standard, including Serializable
Just-in-time (JIT) compilation of expressions
Reliability, Disaster Recovery
Write-ahead Logging (WAL)
Replication: Asynchronous, Synchronous, Logical
Point-in-time-recovery (PITR), active standbys
Tablespaces
Security
Authentication: GSSAPI, SSPI, LDAP, SCRAM-SHA-256, Certificate, and more
Robust access-control system
Column and row-level security
Multi-factor authentication with certificates and an additional method
Extensibility
Stored functions and procedures
Procedural Languages: PL/PGSQL, Perl, Python (and many more)
SQL/JSON path expressions
Foreign data wrappers: connect to other databases or streams with a standard SQL interface
Customizable storage interface for tables
Many extensions that provide additional functionality, including PostGIS
Internationalisation, Text Search
Support for international character sets, e.g. through ICU collations
Case-insensitive and accent-insensitive collations
Full-text search

Backend
Data Types, Functions, & Operators
Indexing & Constraints
SQL
Data Definition Language (DDL)
Performance
Partitioning & Inheritance
Views & Materialized Views
Backup, Restore, Data Integrity, & Replication
Data Import & Export
Configuration Management
Security
Foreign Data Wrappers
Custom Functions, Stored Procedures, & Triggers
Procedural Languages
Extensions
Internationalisation
Additional Modules (contrib)
Network
Platforms

PostgreSQL CE 8 Silver
PostgreSQL-CE guide
Killexams : PostgreSQL-CE guide - BingNews http://www.bing.com:80/news/search?q=PostgreSQL-CE+guide&cc=us&format=RSS Search results Killexams : PostgreSQL-CE guide - BingNews http://www.bing.com:80/news/search?q=PostgreSQL-CE+guide&cc=us&format=RSS https://killexams.com/exam_list/PostgreSQL-CE Killexams : Timescale Releases Third State of PostgreSQL Report

NEW YORK, July 29, 2022 /PRNewswire/ -- Timescale is proud to announce the results of its 2022 State of PostgreSQL survey. Timescale is the maker of TimescaleDB, the open-source relational database for time-series and one of the most popular PostgreSQL extensions. This year, nearly 1000 respondents participated in the 4-week survey providing developers unique insight into the PostgreSQL market.

State of PostgreSQL

The State of PostgreSQL survey provides more significant insights into PostgreSQL features and the broader PostgreSQL community. In 2019, the first edition of the report was released with feedback collated from over 500 developers. In 2021, the second edition of the report sampling close to 500 participants was released. In both years, respondents were mainly software developers/engineers, software architects, and database administrators from the EMEA (Europe, Middle East, Africa) region accounting for 65% participation, North America  25.9%, and South America 7%.

"By organizing and delivering the State of PostgreSQL report, we help developers and developer-centric companies and communities better understand what is happening with Postgres today: the different types of Postgres users, the kinds of use cases they are tackling, the places they go to share and learn, how that is all changing, and the opportunities for improvement in the Postgres community overall," said Ajay Kulkarni, Chief Executive Officer. "This also gives us an opportunity to give back to the broader PostgreSQL community, a community we are proud to be a part of and that has been very helpful to us."

This year, as participation in the survey increased, so did the popularity of PostgreSQL. Key findings from this year's report include why respondents use PostgreSQL, how they contribute to the community, adoption across organizations, and favorite tools and extensions.

Other highlights include:

Usage

Over three-quarters of respondents report using PostgreSQL for personal projects. 95% of all respondents use PostgreSQL at work, and 73.5% use Postgres for both personal and professional projects.

Why PostgreSQL?

Open source ranked as the #1 reason people choose PostgreSQL (19.3%), followed by reliability (16.5%) and extensions (9.9%). This shows that Open source continues to be a high value proposition for most users.

Contributions

44% of PostgreSQL users with 15+ years of experience have contributed to PostgreSQL at least once. Among those with less than 15 years of experience, only 12% have contributed to PostgreSQL. This percentage represents a great opportunity for the PostgreSQL community to welcome new people and ideas into the fold. (For more information, read our guide to contributing to PostgreSQL)

Ways Of Learning

The majority of respondents (76.2%) identified technical documentation as their preferred way of learning about PostgreSQL, followed by long-form blog posts (51.5%) and short-form blog posts (43.3%). Respondents with less than five years of PostgreSQL experience prefer video over long-form and short-form blog posts.

Extensions

One of the most powerful aspects of PostgreSQL is its rich extensibility model. Developers mix and match several purpose-built extensions to help them build more compelling applications. This year's list of most favored extensions is stable compared to last year:

For more information see our blog post about the top PostgreSQL extensions.

Tools

Of the respondents who use tools to connect PostgreSQL for queries and administration tasks, psql (69.4%), pgAdmin (35.3%), and DBeaver (26.2%) were the top three choices. For more information, see our blog post on PostgreSQL tools, in addition to psql.

Deployment

Compared to 2019 and 2021, fewer respondents reported self-managing their PostgreSQL database. It appears that PostgreSQL users are increasingly using DBaaS providers for deploying PostgreSQL. Of those who deploy PostgreSQL as a Kubernetes container, 44% use Helm, 16% use Crunchy Operator, and 7% use Zalando Operator.

For more information and to view the full report, visit here.

About Timescale

Timescale is the creator of TimescaleDB; the industry-leading database for time-series. Tens of thousands of organizations trust TimescaleDB today with their mission-critical time-series applications. The company is dedicated to serving software developers and businesses worldwide, enabling them to build the next wave of computing. Timescale is a remote-first company with a global workforce and is backed by Tiger Global, Benchmark Capital, New Enterprise Associates, Redpoint Ventures, Icon Ventures, Two Sigma Ventures, and other leading investors. For more information, visit www.timescale.com or follow @TimescaleDB.

Contacts
PRESS CONTACT:
Kelvin Steve
Senior Communications Manager
press@timescale.com

Timescale Logo

Cision

View original content to obtain multimedia:https://www.prnewswire.com/news-releases/timescale-releases-third-state-of-postgresql-report-301596152.html

SOURCE Timescale

Fri, 29 Jul 2022 01:48:00 -0500 en-US text/html https://finance.yahoo.com/news/timescale-releases-third-state-postgresql-134800245.html
Killexams : Celanese (CE) Earnings Surpass Estimates in Q2 on Higher Pricing

Celanese Corporation CE logged earnings from continuing operations of $4.03 per share in second-quarter 2022, down from $4.81 in the year-ago quarter.

Barring one-time items, adjusted earnings were $4.99 per share, down from $5.02 in the year-ago quarter. It topped the Zacks Consensus Estimate of $4.57. Our estimate for the quarter was $4.51.

Revenues of $2,486 million increased 13% year over year and beat the Zacks Consensus Estimate of $2,476.8 million. The figure compares to our estimate of $2,584.7 million.

The company witnessed higher pricing on a sequential comparison basis in the reported quarter, which was partly offset by lower volumes and unfavorable currency swings. Pricing also increased year over year across all segments in the quarter.

Celanese Corporation Price, Consensus and EPS Surprise

Celanese Corporation Price, Consensus and EPS Surprise

Celanese Corporation price-consensus-eps-surprise-chart | Celanese Corporation Quote

 

Segment Review

Net sales in the Engineered Materials unit were $948 million in the first quarter, up 39% year over year. This compares to the consensus estimate of $827 million and our estimate of $732 million. The segment witnessed record net sales in the quarter on pricing and volume increase. Volumes rose 1% and pricing increased 6% sequentially.

The Acetyl Chain segment posted net sales of $1,456 million, up roughly 3% year over year. This compares to the consensus estimate of $1,367 million and our estimate of $1,747.2 million. The segment witnessed a 3% sequential decline in volume resulting from production losses at the Clear Lake facility due to supply disruptions from the two biggest external raw material suppliers to that site.

Net sales in the Acetate Tow segment were $119 million, down around 14% year over year. This compares to the consensus estimate of $123 million and our estimate of $132 million. The company witnessed stable pricing and a 6% decline in volume in the segment on a sequential-comparison basis.

Financials

Celanese ended the quarter with cash and cash equivalents of $783 million, down around 26% year over year. Long-term debt was down around 4% year over year to $3,022 million.

Celanese generated an operating cash flow of $495 million and a free cash flow of $368 million in the second quarter. Capital expenditures amounted to $124 million.

The company also returned $74 million to shareholders through dividend payouts during the quarter.

Outlook

Celanese sees adjusted earnings of $4-$4.50 per share for the third quarter with performance at the lower end of the range reflecting the potential for additional modest demand softening as it progresses through the quarter. It also expects to deliver 2022 adjusted earnings per share roughly in line with the year-ago level. The company said that it does not currently envision a sharp deterioration in demand.

Price Performance

Celanese’s shares have declined 23.1% in the past year compared with a 20.7% fall of the industry.

Zacks Investment Research


Image Source: Zacks Investment Research

 

Zacks Rank & Other Key Picks

Celanese currently carries a Zacks Rank #3 (Hold).

Better-ranked stocks worth considering in the basic materials space include Cabot Corporation CBT, ATI Inc. ATI and Albemarle Corporation ALB.

Cabot, currently carrying a Zacks Rank #1 (Strong Buy), has an expected earnings growth rate of 22.5% for the current fiscal year. The Zacks Consensus Estimate for CBT's earnings for the current fiscal has been revised 0.8% upward in the past 60 days. You can see the complete list of today’s Zacks #1 Rank stocks here.

Cabot’s earnings beat the Zacks Consensus Estimate in each of the trailing four quarters, the average being 16.2%. CBT has gained around 33% over a year.

ATI, currently sporting a Zacks Rank #1, has a projected earnings growth rate of 1,069.2% for the current year. The Zacks Consensus Estimate for ATI's current-year earnings has been revised 12.5% upward in the past 60 days.

ATI’s earnings beat the Zacks Consensus Estimate in the last four quarters. It has a trailing four-quarter earnings surprise of roughly 128.9%, on average. ATI shares are up around 21% in a year.

Albemarle has a projected earnings growth rate of 241.8% for the current year. The Zacks Consensus Estimate for ALB’s current-year earnings has been revised 18% upward in the past 60 days.

Albemarle’s earnings beat the Zacks Consensus Estimate in each of the trailing four quarters, the average being 20%. ALB has gained roughly 15% in a year. The company flaunts a Zacks Rank #2 (Buy).


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Fri, 29 Jul 2022 00:35:00 -0500 en-US text/html https://finance.yahoo.com/news/celanese-ce-earnings-surpass-estimates-123512825.html
Killexams : VMware Details its Tanzu/Kubernetes Strategy after Pivotal Merger

After acquiring Pivotal at the end of last year, VMware has detailed in a latest webinar how it will go about fulfilling its strategy aimed to help customers build their apps, run them using Kubernetes, and manage them from a single control plane.

When VMware announced its intention to acquire the Kubernetes-centered cloud platform and service provider Pivotal in August 2019, VMware had just introduced its VMware Tanzu strategy. While VMware clarified from the outset that Pivotal was going to be an integral part of its new strategy, no details were provided concerning how Pivotal products and VMware products will coexist.

In the webinar, VMware product vice-president Craig McLuckie stated Pivotal Application Service (PAS) on Kubernetes is a top priority and will receive continued support. PAS on K8s is currently in alpha and will reach GA by the end of the year. Additionally, PAS development will include extending support for Kubernetes on Windows, already in version 2.9, scheduled for Q1 2020. Among additional new features in PAS 2.9 are improved configuration of graceful shutdown, access to high-level metrics in Apps Manager, and more.

On a similar note, McLuckie also confirmed VMware's commitment to continuing the support of BOSH, an open-source project aiming to unify release, deployment, and management of cloud applications over hundreds of VMs. In particular, VMware will focus on BOSH automated cluster and OS lifecycle management.

The existing Pivotal Container Service (PKS), also known as VMware Enterprise PKS, will get a new release, PKS 1.7, in Q1 2020. This will include additional monitoring metrics, improved upgrade and configurations, and Windows container support in beta.

One of the major goals VMware will be pursuing is providing an integrated control plane to manage both VMs and K8s in a unified way:

We made an important decision in the last few months which was that, in order to make this experience complete, we really wanted to containerise the control plane, so that it actually has the ability to run on Kubernetes, and to effectively remove the need for a discrete cluster of virtual machines off to the side. This ultimately brings considerably reduced operational complexity, potentially a smaller footprint, easier to adopt at a team level'.

Several other remarks worth highlighting referred to the convergence of the VM and K8s worlds. With the acquisition of Pivotal, VMware has two different K8s focused domains: one in Enterprise PKS, and the other is vSphere, which will integrate K8s through Tanzu K8s Grid. According to McLuckie, those two streams will converge in a non-disruptive way, and all Enterprise PKS customers will be entitled to Tanzu K8s Grid. Similarly, VMware will aim to make PAS on VMs and PAS on K8s to level up in terms of available capabilities, so both platforms receive the same treatment.

(Image courtesy VMware)

As a final note, Ian Andrews, VMware marketing vice-president for modern apps, presented the VMware stack after Pivotal merger, showing their integration from the hypervisor level to the application level.

(Image courtesy VMware)

The VMware webinar included many additional details, such as the VMware innovation roadmap. If you are interested, do not miss the recording of the.webinar.

Wed, 27 Jul 2022 12:00:00 -0500 en text/html https://www.infoq.com/news/2020/02/vmware-pivotal-tanzu-merger/
Killexams : A New Service from the Microsoft and Oracle Partnership: Oracle Database Service for Microsoft Azure

Recently, Microsoft and Oracle announced the general availability (GA) of Oracle Database Service for Microsoft Azure, a new service that allows Microsoft Azure customers to provision, access, and monitor enterprise-grade Oracle Database services in Oracle Cloud Infrastructure (OCI).

Microsoft and Oracle have partnered since 2019 and first delivered the Oracle Interconnect for Microsoft Azure,, allowing hundreds of organizations to use secure and private interconnections in 11 global regions. Now both companies have extended their partnership with the GA release of Oracle Database Service for Microsoft Azure, which builds upon the core capabilities of the Oracle Interconnect for Azure and enables any customer to integrate workloads more easily on Microsoft Azure with Oracle Database services on OCI.

Through the Azure Portal, customers can deploy Oracle Database running on OCI with the Oracle Database Service. The service automatically configures everything required to link the two cloud environments and federates Azure Active Directory identities, making it easy for Azure customers to use the service. Furthermore, OCI database logs and metrics are integrated with Azure Services such as Azure Application Insights and Azure Log Analytics for simpler management and monitoring Azure Application Insights and Azure Log Analytics.

Source: https://www.oracle.com/cloud/azure/

Jane Zhu, senior vice president, and chief information officer, Corporate Operations, Veritas, said in a Microsoft press release:

Oracle Database Service for Microsoft Azure has simplified the use of a multi-cloud environment for data analytics. We were able to easily ingest large volumes of data hosted by Oracle Exadata Database Service on OCI to Azure Data Factory where we are using Azure Synapse for analysis. 

In addition, Holger Mueller, principal analyst and vice president at Constellation Research Inc., told InfoQ:

It is remarkable as customers brought competitors together - and now Oracle is even better integrated into the Azure... practically making Oracle a first-grade citizen in Azure - operating the Oracle DB from an Azure console. This is how multi-cloud should be implemented - so customers win. And they must win......

Furthermore, he said: 

Tacitly it is also the admission by Microsoft that the Oracle DB is better than MS SQL Server and by Oracle that Microsoft PowerBI is better than Oracle Analytics - at least for some customers... and Larry J Ellison is right - it is all about giving customers choices.

Lastly, there are no charges for using the Oracle Database Service for Microsoft Azure, the Oracle Interconnect for Microsoft Azure, or data egress or ingress when moving data between OCI and Azure. Customers will pay only for the other Azure or Oracle services they consume, such as Azure Synapse or Oracle Autonomous Database.

Wed, 27 Jul 2022 19:10:00 -0500 en text/html https://www.infoq.com/news/2022/07/oracle-database-service-azure/?topicPageSponsorship=6b9137ce-f38a-4d6a-8581-599c550347c4
Killexams : Retool Raises $45M Series C2 to Change How Software Is Built

Existing Investors Sequoia Capital, John and Patrick Collison, Nat Friedman, Elad Gil, Daniel Gross and Caryn Marooney participated in the round that values Retool at $3.2B

SAN FRANCISCO, July 28, 2022 (GLOBE NEWSWIRE) -- Retool, an application development platform for internal tools, today announced it has raised $45 million in Series C2 funding at a $3.2B valuation from existing investors Sequoia Capital, Stripe co-founders John and Patrick Collison, former GitHub CEO Nat Friedman, Elad Gil, Daniel Gross, and Caryn Marooney.

The San Francisco-based company raised $20 million in Series C funding in December 2021, opting for a smaller round. As Retool Co-founder and CEO David Hsu explained, the company chose to optimize its funding strategy for the benefit of its employees and the long-term health of the company, rather than the optics of the highest valuation.

"Instead of chasing large valuations, we remain focused on expanding our team and delivering value to our customers and developers," remarked Hsu. "In the last year alone, we’ve launched hundreds of new features and improvements, handled billions of queries across the Retool platform, and seen strong traction globally, including in Europe and APAC with customers like Checkout.com and CRED.”

Retool will primarily use its funds to invest more aggressively in headcount, new products and platform improvements, and international expansion. The company, which counts Amazon, NFL, NBCUniversal, and Pinterest among its customers, recently moved its headquarters into the historic Hamm’s Building in San Francisco, and is building out employee hubs in New York City, London, and Seattle.

“Historically, internal tools have been seen as a luxury at best, and a distraction at worst—something you don’t want core engineers working on,” said Bryan Schreier, partner at Sequoia, “With Retool, the calculus changes; internal tools are 10x easier to build, and can help teams move faster and reimagine how they operate. In a time when many companies are tightening their belts, the right internal tools that empower teams to do more with less is a competitive advantage.”

Retool also announced today major updates to its free plan for developers, which now allows teams of up to five users to build unlimited apps. With this new free plan, startups, small teams, and solo developers can build unlimited apps using Retool’s 90+ pre-built components, 40+ data and API connections, and Retool’s app hosting service.

Retool’s new free plan features:

  • Unlimited apps - Now startups and small teams of up to five users can build unlimited apps to solve their business needs and deploy them at no cost.
  • The largest UI component library for internal tools - Retool offers 90+ components (such as forms, charts, and tables) that come with built-in validation, accessibility and more. Developers can drag and drop to build whatever interface they need and don’t need to waste time building from scratch.
  • Connect apps to any database or API - Retool connects to nearly anything with a REST or GraphQL API, and has built durable integrations for popular datastores, like PostgreSQL or MongoDB.
  • Save, share, and reuse queries - With Retool, developers can use and reuse everything—including the queries that power their apps. Retool offers a Query Library so the team can work from one place for all custom logic.
  • Bring your own React components - Companies can add their own custom React components to fit their business needs.

“Broadening access to the Retool platform is a key step in our mission to change the way the world develops software,” said Hsu. “Internal tools are just the start.”

Read more about Retool’s pricing plans.

Retool is hiring. See open roles across all departments and locations.

About Retool
Retool is the fast way to build internal tools. Visually design apps that interface with any database or API. Switch to code nearly anywhere to customize how your apps look and work. With Retool, you ship more apps and move your business forward—all in less time. Thousands of teams at companies like Amazon, DoorDash, Snowflake, and Brex collaborate around custom-built Retool apps to solve internal workflows. To learn more, visit retool.com.

Media Contact:
Michael Selvidge
michael@retool.com
415-218-7467


Thu, 28 Jul 2022 01:37:00 -0500 fr-FR text/html https://www.generation-nt.com/retool-raises-45m-series-c2-to-change-how-software-is-built-newswire-2003702.html
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