Welcome to SQL Quiz. Our website will help you test and improve your SQL and database knowledge. SQL Quiz is a free form of SQL training, which can be. SQL Practice Questions - Solution. 1. For the following relation schema: employee(employee-name, street, city) works(employee-name, company-name, salary). 5 days ago GMT SQL Objective Questions and Answers | Pdf Free Download SQL MCQ. Questions and answers - caite.info Learn.
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WebQuizSQL WebQuiz SQL supports several question types; in the current tutorial we will just use custom feedback message; a PDF certificate can also be. SQL Questions and Answers has been designed with a special intention of helping students and professionals preparing for various Certification Exams and Job. Sql query practice questions answers: Q&A, learn online sql test prep 27 for distance education eCourses. College and university courses MCQs, sql query practice questions answers questions and answers to practice sql quiz with answers. Practice quiz on sql query practice questions.
A database query can be either a select query or an action query. I hope to bring more people from Nigeria to embrace intellipaat as the bridge to filling the gaps in their career needs. These three functions work in the same way. What is a Primary Key? These are some basic but very essential questions an Sql professional should know. What are SQL constraints? Depending on the SQL engine used, views can provide extra security Source:
All Rights Reserved. Discuss Puviya, says Feb 10, SQL is basically Structured query language for the processing of data in the query format. A Database Management system consists of a collection of interrelated data and set of programs to access that data. Discuss Jayani Sumudini, says August 10, A Database Management system provides a secure and survivable medium for the storage and retrieval of data.
In the real world, the data is shared among several users and is persistent. How do synonyms work and explain its use cases? Synonyms were released with SQL Server Synonyms enable the reference of another object View, Table, Stored Procedure or Function potentially on a different server, database or schema in your environment. In simple words, the original object that is referenced in the whole code is using a completely different underlying object, but no coding changes are necessary.
Think of this as an alias as a means to simplify migrations and application testing without the need to make any dependent coding changes.
Synonyms can offer a great deal of value when converting underlying database objects without breaking front end or middle tier code. This could be useful during a re-architecture or upgrade project. If you are a SQL Developer, how can you delete duplicate records in a table with no primary key? If so, what are the commands? The bulk copy bcp command of Microsoft SQL Server provides you with the ability to insert large numbers of records directly from the command line.
In addition to being a great tool for command-line aficionados, bcp is a powerful tool for those seeking to insert data into a SQL Server database from within a batch file or other programmatic method. Bulk Insert: Provides ad hoc connection information as part of a four-part object name without using a linked server name. Executes the specified pass-through query on the specified linked server.
Linked Servers: Typically linked servers are configured to enable the Database Engine to execute a Transact-SQL statement that includes tables in another instance of SQL Server, or another database product such as Oracle. What is the native system stored procedure to execute a command against all databases? The alternative is to use a cursor to process specific commands against each database.
How do you maintain database integrity where deletions from one table will automatically cause deletions in another table?
What port does SQL server run on? Explain with an example?
What are the risks of storing a hibernate-managed object in cache? How do you overcome the problems? What is SQL Profiler? Use SQL Profiler to monitor only the events in which you are interested. What are the implications of having it OFF? In this example, Stuff function replaces the string "Intellipaat" onwards the 3rd position 'nte' with 'abc'.
In this example, Replace function replaces the occurrence of each 'bc' string with 'xy'. What is de-normalization in SQL database administration? Give examples. Materialized views for implementation purpose such as: Linking attribute of one relation with other relations. To improve the performance and scalability of web applications. Buffer Cache: Buffer cache is a memory pool in which data pages are read.
The ideal performance of the buffer cache is indicated as: Log Caches: Log cache is a memory pool used to read and write the log pages. A set of cache pages are available in each log cache. The synchronization is reduced between log and data buffers by managing log cache separately from the buffer cache. Describe how to use Linked Server. Expand Server Objects in Object Explorer.
Right-click on Linked Servers. Click on New Linked Server. Select General page in the left pane and Type any name for the linked server in the first text box. Select the Other Data Source option. Click on Microsoft Jet 4. Type the full path and file name of the Excel file in Data Source box. Type the Excel version no. Use Excel 8.
To create a linked server click on OK. How to find second highest salary of an Employee? Explain how to send email from SQL database.
Write a script to send an e-mail. The following is the script. How to make remote connection in database? The following is the process to make a remote connection in database: Select the radio button: How to store pdf file in SQL Server? Create a Store Procedure with Encryption.
What is lock escalation?
What is Failover clustering overview? One machine provides the basic services and the second is available to run the service when the primary system fails. The primary system is monitored periodically to check if it works.
This monitoring may be performed by the failover computer or an independent system also called as cluster controller. In an event of failure of primary computer, the failover system takes control. SQL Server server-side supports 3 major elements: Creation of XML fragments: Ability to shred xml data to be stored in the database.
Finally, storing the xml data. XML Views: Creation of XML Templates: Recommended Courses. Which of the following is the original purpose of SQL?
To specify the syntax and semantics of SQL data definition language B. To specify the syntax and semantics of SQL manipulation language C.
To define the data structures D. All of the above. Option D Explanation: Read more: Current Affairs Interview Questions and Answers. To specify the syntax and semantics of SQL data definition language.