Database Administration and SQL Online Test
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The Database Administration and SQL test assesses a candidate's knowledge of managing and administering database management systems to store and organize data, along with the knowledge of SQL.
It's an ideal test for pre-employment screening. A good database administrator needs to have knowledge of capacity planning, installation, configuration, database design, migration, performance monitoring, security, troubleshooting, as well as backup and data recovery along with the ability to write SQL queries for the purpose of database administering.
This online test requires candidates to answer multiple-choice and fill the blanks questions about various procedures required for database administration, and to write SQL queries that extract, combine, and manipulate data.
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Free Sample Questions for Database Administration and SQL Test
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Database Backups
Under a new database backup plan:
- Full backups of the database are taken every 6 hours starting at 00:00.
- Differential backups are taken every 1 hour starting at 01:00, except for intervals of 6 hours (when full backups are taken).
- Transaction/redo log backups are taken every 30 minutes starting at 00:00. The transactional/redo log is reset/cleared after a backup is taken.
Due to a missed scenario during the testing phase, a development error in setting wrong query conditions resulted in the loss of all records from a table at 13:45, which had data prior to the implementation of the backup plan. All further backups were taken as per the mentioned schedule.
Select all the ways to restore the database until 13:45.
(Select all acceptable answers.)
Students
Given the following data definition, write a query that returns the number of students whose first name is John.
TABLE students id INTEGER PRIMARY KEY, firstName VARCHAR(30) NOT NULL, lastName VARCHAR(30) NOT NULL
Enrollment
A table containing the students enrolled in a yearly course has incorrect data in records with ids between 20 and 100 (inclusive).
TABLE enrollments id INTEGER NOT NULL PRIMARY KEY year INTEGER NOT NULL studentId INTEGER NOT NULL
Write a query that updates the field 'year' of every faulty record to 2015.
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Premium Questions for Database Administration and SQL Test
TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.
Question Names
These premium questions are included in this pre-built test and can be added to any multi-skill test. Please sign up for a paid plan to view the questions in detail.
Index Fragmentation, Roads, Authors, Autocomplete, Ban Users, Bank Branches, Cheapest Product, Countries, Developers, Hospital Patients, Index Performance, Menu Items, Merge Stock Index, Movies, Projects, Rectangles, Restaurant Menu, Retirees, SMS Messages, Poll, Users and Accounts, Matching Clothes, Agents, Sales, Employee Manager, Auto Show, Delete Orders, Transactions, Welfare Organization, Tasks, Manager Sales, Student Rankings, Student Activities, Youngest Child, Movies Live, Department Report, Ingredients, Average Salary, Movie Genres, Master Slave, River Discharge, ATM Locations, Database Storage SpaceCovered Skills
Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.
Database AdministrationRecommended Job Roles
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