PostgreSQL online test

About the test:

The PostgreSQL Online Test uses scenario-based MCQs to evaluate candidates on their knowledge of PostgreSQL, including their proficiency in SQL queries, database design, indexing, transactions, and stored procedures. The test aims to evaluate a candidate's ability to work with PostgreSQL databases effectively and develop applications that utilize PostgreSQL efficiently.

Covered skills:

Objekt-relationel database
Support til SQL
Fleksibel API
MVCC
Wal
Opret tabel
Optimering
Udenlandske nøgler
AT HAVE
Eksisterer
Bestilling
Opdeling
Heap -bord
VÆLG
Tokens
Databaseskema
Indeks
Server
Performance Tuning

Udvidelighed
Databasevalidering
Proceduremæssige sprog
Klient-server
SQL Basics
Enum
Gruppering
Slet
Rangeringsfunktioner
JSON
Tidsmæssige typer
NUL
Nøgler
TILSLUTTE
Transaktion
Forespørgsel
SKAB
SYNES GODT OM

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9 reasons why

Adaface PostgreSQL online test is the most accurate way to shortlist PostgreSQL Database Administrators

Reason #1

Tests for on-the-job skills

PostgreSQL Online Assessment Test er designet og valideret af brancheeksperter hjælper tech -rekrutterere og ansættelsesledere med at vurdere kandidatens postgresql -færdigheder. Top tech -virksomheder bruger vores PostgreSQL -test til at reducere kandidatscreeningstiden med 85%.

PostgreSQL -testskærmene kandidater til følgende færdigheder:

Hands on erfaring med installation og konfiguration af PostgreSQL i et multimestermiljø
Evne til effektivt at skrive databasekode uden at gå på kompromis med datakvalitet, privatliv eller sikkerhed.
Gode ydelsesindstillingsevner
Kendskab til principper og praksis for katastrofegendannelse, herunder planlægning, test, sikkerhedskopiering/gendannelse

Reason #2

No trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface ->

Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

Dette er kun en lille prøve fra vores bibliotek med 10.000+ spørgsmål. De faktiske spørgsmål om dette PostgreSQL Online Test vil være ikke-gåbart.

🧐 Question
Easy DROP SUM bar	Solve
What will the following PostgresSQL snippet below output?
Medium SCHEMA car far	Solve
What will the following PostgreSQL snippet output?
Medium Multi Select JOIN GROUP BY	Solve
Consider the following SQL table: How many rows does the following SQL query return?
Medium nth highest sales Nested queries User Defined Functions	Solve
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
Medium Select & IN Nested queries	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
Medium Sorting Ubers Nested queries Join Comparison operators	Solve
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
Hard With, AVG & SUM MAX() MIN() Aggregate functions	Solve
Consider the following SQL table: How many tuples does the following query return?

	🧐 Question	🔧 Skill
	Easy DROP SUM bar	2 mins PostgreSQL	Solve
What will the following PostgresSQL snippet below output?
	Medium SCHEMA car far	2 mins PostgreSQL	Solve
What will the following PostgreSQL snippet output?
	Medium Multi Select JOIN GROUP BY	2 mins SQL	Solve
Consider the following SQL table: How many rows does the following SQL query return?
	Medium nth highest sales Nested queries User Defined Functions	3 mins SQL	Solve
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
	Medium Select & IN Nested queries	3 mins SQL	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	Medium Sorting Ubers Nested queries Join Comparison operators	3 mins SQL	Solve
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
	Hard With, AVG & SUM MAX() MIN() Aggregate functions	2 mins SQL	Solve
Consider the following SQL table: How many tuples does the following query return?

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	DROP SUM bar	PostgreSQL	Easy	2 mins	Solve
What will the following PostgresSQL snippet below output?
	SCHEMA car far	PostgreSQL	Medium	2 mins	Solve
What will the following PostgreSQL snippet output?
	Multi Select JOIN GROUP BY	SQL	Medium	2 mins	Solve
Consider the following SQL table: How many rows does the following SQL query return?
	nth highest sales Nested queries User Defined Functions	SQL	Medium	3 mins	Solve
Consider the following SQL table: Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
	Select & IN Nested queries	SQL	Medium	3 mins	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	Sorting Ubers Nested queries Join Comparison operators	SQL	Medium	3 mins	Solve
Consider the following SQL table: What will be the first two tuples resulting from the following SQL command?
	With, AVG & SUM MAX() MIN() Aggregate functions	SQL	Hard	2 mins	Solve
Consider the following SQL table: How many tuples does the following query return?

Reason #4

1200+ customers in 75 countries

Med Adaface var vi i stand til at optimere vores indledende screeningsproces med op til 75%, hvilket frigør dyrebar tid for både ansættelsesledere og vores talentindsamlingsteam!

Brandon Lee, Leder af mennesker, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment PostgreSQL Online Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the PostgreSQL Online Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

Reason #7

Detailed scorecards & benchmarks

Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

Reason #9

Advanced Proctoring

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Om PostgreSQL Jobroller

PostgreSQL, også kendt som Postgres, er et gratis og open source relationel databasestyringssystem, der understreger udvidelighed og SQL-overholdelse. PostgreSQL kræver meget minimum opretholdt bestræbelser på grund af dens stabilitet. Derfor, hvis du udvikler applikationer baseret på PostgreSQL, er de samlede ejerskabsomkostninger lave i sammenligning med andre databasestyringssystemer. Mange virksomheder har bygget produkter og løsninger ved hjælp af PostgreSQL. Nogle fremhævede virksomheder er Apple, Fujitsu, Red Hat, Cisco, Juniper Network osv.

Millioner af udviklere og virksomheder er afhængige af PostgreSQL som deres transaktionsdatalager, der vælges for at drive applikationssundhed og beslutningstagning. Med en stor efterspørgsel efter PostgreSQL -database -administratorer tilføjer masser af softwareingeniører simpelthen det til deres CV/ CV, men de kommer til kort, når mere avancerede opgaver, der kræver specifik database- og softwareudviklingserfaring, skal afsluttes. PostgreSQL -online -testen er designet til at hjælpe dig med at finde de mest kvalificerede PostgreSQL -eksperter.

Typisk ansvar for en PostgreSQL -databaseadministrator kan involvere:

Implementere og vedligeholde databasekode i form af lagrede procedurer, scripts, forespørgsler, visninger, triggere osv.
Primær dag til dag skemaændringer og vedligeholdelse af databaser
Arbejd med frontend -udviklere for at definere enkle, men alligevel kraftfulde API'er
Arbejd med DBA'er og dataanalytikere for at sikre, at databasekoden er nøjagtigt dokumenteret
Hjælp med at definere og implementere vedligeholdelsesplan for databasesystemerne

Testen er designet til at filtrere kandidater til roller som:

Database Administrator
PostgreSQL -udvikler
Systemadministrator
DevOps Engineer
Software ingeniør

What roles can I use the PostgreSQL Online Test for?

PostgreSQL Database Administrator
PostgreSQL Database Developer

What topics are covered in the PostgreSQL online test?

Objekt-relationel database

Udvidelighed

Support til SQL

Databasevalidering

Fleksibel API

Proceduremæssige sprog

MVCC

Klient-server

Wal

SQL Basics

Opret tabel

Enum

Optimering

Gruppering

Udenlandske nøgler

Slet

AT HAVE

Rangeringsfunktioner

Eksisterer

JSON

Bestilling

Tidsmæssige typer

Opdeling

NUL

Heap -bord

Nøgler

VÆLG

TILSLUTTE

Tokens

Transaktion

Databaseskema

Forespørgsel

Indeks

SKAB

Server

SYNES GODT OM

Performance Tuning

Preview this test

Se prøvescorekort

De ansættelsesledere mente, at de gennem de tekniske spørgsmål, som de stillede under panelinterviewene, kunne fortælle, hvilke kandidater der havde bedre scoringer, og differentierede med dem, der ikke scorede så godt. De er meget tilfreds med kvaliteten af kandidater, der er på listen med Adaface -screeningen.

85%

Reduktion i screeningstid

Se den fulde casestudie

FAQS

Kan jeg kombinere flere færdigheder i en brugerdefineret vurdering?

Ja absolut. Brugerdefinerede vurderinger er oprettet baseret på din jobbeskrivelse og vil omfatte spørgsmål om alle must-have-færdigheder, du angiver.

Har du nogen anti-cheating eller proctoring-funktioner på plads?

Vi har følgende anti-cheating-funktioner på plads:

Ikke-gåbare spørgsmål
IP Proctoring
Webproctoring
Webcam Proctoring
Detektion af plagiering
Sikker browser

Læs mere om Proctoring Features.

Hvordan fortolker jeg testresultater?

Den primære ting at huske på er, at en vurdering er et elimineringsværktøj, ikke et udvælgelsesværktøj. En færdighedsvurdering er optimeret for at hjælpe dig med at eliminere kandidater, der ikke er teknisk kvalificerede til rollen, den er ikke optimeret til at hjælpe dig med at finde den bedste kandidat til rollen. Så den ideelle måde at bruge en vurdering på er at beslutte en tærskelværdi (typisk 55%, vi hjælper dig med benchmark) og inviterer alle kandidater, der scorer over tærsklen for de næste interviewrunder.

Hvilken oplevelsesniveau kan jeg bruge denne test til?

Hver Adaface -vurdering tilpasses til din jobbeskrivelse/ ideel kandidatperson (vores emneeksperter vælger de rigtige spørgsmål til din vurdering fra vores bibliotek på 10000+ spørgsmål). Denne vurdering kan tilpasses til ethvert erfaringsniveau.

Får hver kandidat de samme spørgsmål?

Ja, det gør det meget lettere for dig at sammenligne kandidater. Valgmuligheder for MCQ -spørgsmål og rækkefølgen af spørgsmål randomiseres. Vi har anti-cheating/proctoring funktioner på plads. I vores virksomhedsplan har vi også muligheden for at oprette flere versioner af den samme vurdering med spørgsmål om lignende vanskelighedsniveauer.