What is a cross join and give an example of its syntax

Assignment Help Database Management System
Reference no: EM131200392

1. What is the difference between a column constraint and a table constraint?

2. What is a recursive join?

3. Explain the difference between an ORDER BY clause and a GROUP BY clause.

4. What is a CROSS JOIN? Give an example of its syntax.

5. What three join types are included in the OUTER JOIN classification?

6. What is a correlated subquery? Give an example.

7. What is a subquery, and what are its basic characteristics?

8. What is a trigger, and what is its purpose? Give an example.

9. What is a stored procedure, and why is it particularly useful? Give an example.

Reference no: EM131200392

Questions Cloud

Effective tool in the selection of qualified candidates : Pre-employment testing can be an effective tool in the selection of qualified candidates. Testing can include, but is not limited to the following areas: personality, talent assessment, job task proficiency and productivity, physical ability, drug..
Determine the average normal strain in the rod : Determine the average normal strain in the rod.?By doubling the magnitude of each of the weights of the blocks to 2W, the total deformation of the rod is double its original value. Determine the ratio of the new initial length of the rod to the or..
Create a database using professional principles and standard : Create a database using professional principles and standards. Use a relational database software application to develop a database implementing the logical design into a physical design.
What choice offers the greatest gain : In April the store also had seven part-time workers at 10 hours per week, and in May the store had nine part-timers at 15 hours per week (assume four weeks in each month). Use sales dollars as the measure of output. What is the percentage change i..
What is a cross join and give an example of its syntax : What is a CROSS JOIN? Give an example of its syntax. What three join types are included in the OUTER JOIN classification? What is a correlated subquery? Give an example. What is a subquery, and what are its basic characteristics?
Describe the cultural and social factors : 1. List and describe the cultural and social factors that influence consumer buying behavior, giving examples of each. 2. There are two popular theories of motivation as our insight into why people would buy what they do. Describe each of these two..
Ethical requirements on small businesses : Should the law impose ethical requirements on small businesses or privately held companies or can the marketplace police unethical business behavior? Provide support to justify your position.
Determine the time when they come side by side : Car B has a speed of 120 ft> s and is decreasing its speed at 15 ft> s2 until it travels a distance of 65p ft, after which it maintains a constant speed. Determine the time when they come side by side.
Examine the source code for one or more open source projects : Examine the source code for one or more open source projects and locate an example in which: the documentation and commenting within the program leaves something to be desired.

Reviews

Write a Review

Database Management System Questions & Answers

  Find that the data structure holds redundant data

Imagine that you have been hired to fulfill their need of enhancing the data repository for their current reservation processing system. Upon reviewing the system, you find that the data structure holds redundant data and that this structure lacks..

  Discuss cloud computing and saas

Your team has decided to discuss 1) cloud computing, 2) SaaS (software as a service), 3) web, social media, and big data, and 4) real-time data. Create a PowerPoint with a minimum of 5-7 slides to present how data warehousing is headed in these fo..

  What is the oldest log record we need to retain

If a bounded amount of stable storage is used for the log, how can we always ensure enough stable storage to hold all log recordswritten during restart?

  A motor vehicle maintenance center wants to enhance its

write a 200- to 300-word short-answer response for the followinga motor vehicle maintenance center wants to improve its

  Physical design and implementation it requires the use of a

physical design and implementation it requires the use of a relational database management system. strayer university

  If you cannot capture some constraints explain why

Consider the university database from Exercise 2.3 and the ER dia-gram you designed. Write SQL statements to create the corresponding relations and capture as many of the constraints as possible. If you cannot capture some constraints, explain why.

  Create oracle database tables

Create Oracle database tables using SQL Data Definition Language (DDL) for each table listed in Project 1. Make sure that entity and referential integrity are enforced by declaring a primary key for each table (these may be composite keys) and dec..

  Create a data flow diagram

Create a Data Flow Diagram (DFD) relating the tables of your database schema through the use of graphical tools in Microsoft Visio or an open source alternative such as Dia. Note: The graphically depicted solution is not included in the required page..

  Designing a database for an antique store

Consider designing a database for an antique store. What entities would you include? What would their attributes be?

  Explain the security mechanisms available for a database

Use technology and information resources to research issues in database systems. Write clearly and concisely about relational database management systems using proper writing mechanics and technical style conventions.

  Design an enhanced entity-relationship diagram

Design an Enhanced Entity-Relationship diagram for the ONLINE_AUCTIONdatabase and build the design using a data modeling tool such as ERwin orRational Rose.

  Create a crow''s foot erd using a specialization hierarchy

Given the following business scenario, create a Crow's Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd