Assume you do a pubmed search using the query ((Gogarten JP[Author]) OR (Taiz, Lincoln[Author])) NOT (Kibak H[Author]) Draw a Venn diagram that correspond to this search.

Q: Ma tch the following terms to the appropriate definitions:

A: A vector aggregate is a aggregate in SQL which returns list of values because there is a presence of…

Q: How can gaps appear in values generated by a sequence?

A: Gaps in values generated by a sequence A sequence is an ordered list of numbers. In a sequence…

Q: Why we use view in ADBMS? Give an example of a complex view.

A: Please give positive ratings for my efforts. Thanks.   ANSWER     A View is the result set of a…

Q: 31. A primary key combined with a foreign key creates: A. Parent-child relationship between the…

A:

Q: I am trying to write a an essay on the five step design method for relational databases

A: The above question is solved in step 2 :-

Q: What exactly is denormalization?

A: Introduction  the question is about denormalization and here is the solution in the next step.

Q: (a) Construct an appropriate SQL query (Create Table) for the following table:- i. Member ii. Make

A: NOTE - I have Oracle as a database to create and store the table. I have created the table Member…

Q: When do DML updates become permanent in database tables?

A: Introduction: You may enter a DML statement in the Worksheet in the SQL Developer environment.…

Q: What is Overlap rule?

A: This rule tell us about the entity instance of a super type and it can be the member of multiple…

Q: Design two stored procedures as the following (4 marks) Create a PARAMETER based SELECT QUERY stored…

A: Q: Write query based on given values Note: Please ensure to update correct field names as they are…

Q: 3. Construct Data Dictionary for all tables identified in (1)

A: In this question, we are asked to create a data dictionary for the table. We will create an empty…

Q: A relational database's tables are made smaller by a select operation that eliminates columns that…

A: Definition: Tables are objects in a database that contain all of the information that is stored in…

Q: Define the terms parent and child as they apply to tables in a database design and give an example…

A: A parent is a 1:N relationship row on one side. A child is a row in a 1:N ratio on many sides.…

Q: Create a SOQL Query to find out the child and parent record using Inline SOQL and keep in mind that…

A: Problem Description : SOQL stands for the salesforce object query language which is closely related…

Q: What makes a clustering index different from a secondary index?

A: Here is you answer given below :-

Q: is a textual representation of the database tables where each table is listed by its name followed…

A: Database is a collection of large amount of data and there are so many ways to store data.

Q: Map the ER into relational schema

A: The relation schema for the given ER Diagram is: The entity tables and the relation are mapped .…

Q: It is the field used to link a child table to a parent table in a relational database Answer:

A: To find which field used to link a child table to a parent table in a relational database.

Q: Give an example of each of the phrases parent and child as they apply to tables in a database…

A: A parent is a 1:N relationship row on one side. A child is a row in a 1:N ratio on many sides. Say…

Q: Describe an algorithm for the selection operation and discuss its cost in Query Processing

A: Different phases of Query processing : The query starts as SQL. Database translates SQL to 1 or…

Q: List the guidelines for DML operations on complex views.

A: The Data Manipulation Language (DML) operations that break a limitation are not allowed. If a column…

Q: What is Sqoop-merge and explain its use?

A: Defined about Sqoop-merge and its use

Q: What are homonyms and synonyms, and why should they be avoided during database design?

A: Answer:

Q: If a non-key column determines a key column, which normal form is violated?A) 1NFB) 2NFC) 3NFD) BCNF

A: BCNF:Boyce – Codd Normal Form (BCNF) is based on functional dependencies that in a relationship all…

Q: What is denormalization?

A: Given:-   What is denormalization?

Q: What is query representation?

A: Introduction: Modeling the purpose or requirement is part of query representation. The technique of…

Q: When using subtype associations, it's vital to talk about the different database table alternatives.…

A: Introduction: When using subtype associations, it's vital to talk about the different database table…

Q: Write a JDBC program to insert your name , mobile number and course in MS access database and then…

A: GIVEN: Using JDBC program insert the name and mobile phone number. MS access database and then…

Q: (a) Use STUDENT and LECTURER tables shown below to answer questions (i) and (ii). Table name:…

A: As per our rules, we can answer only the first sub-part in a multi-part question. Please submit the…

Q: Observe the table DOCTOR: DOCTOR Doctor|D Name DateOfMDGraduation NumberOfPatients D111 John…

A: After the observation of the table the answer is

Q: Convert from ER schema to Relational Schema

A: Convert the Entity Relational Schema to Relational Schema. 1) An Entity-relationship model (ER…

Q: A table in third normal form is one which: A Has only one primary key. B Is linked to another table…

A: A  database is in third normal form if it: is already in second normal form it has no non-key…

Q: When are DML modifications in database tables made permanent?

A: Introduction: In SQL Developer, you may insert a DML statement in the Worksheet. To access and…

Q: 16. There are 23, 765 number of relations on the set {a, b, c, d}that contain the pair (a, a)?

A: False.

Q: x metadata r

A: The Index metadata association has been standardized. The Index metadata connection does exclude a…

Q: Explain normalization technique with respect to a redundant and non-redundant database table.

A: The Normalization technique with respect to a redundant and non-redundant database table:…

Q: Explain three-schema Architecture for Database Development?

A: DD:Database Development Three Schema design of software systemThe 3 schema design describes however…

Q: “A flashback query is used to retrieve the committed data as it was at a past point in time”.…

A: Please find answer to the above question below:

Q: Define an index and view. Create each as an example

A: SQL technique: views and indexes A view is simply any SELECT query that has been given a name and…

Q: computer scienceWhat is the purpose of target tables? What information are they giving?

A: Introduction: The target table is the table to which data is sent or where an action is performed.…

Q: he reason for the substantial query speed improvements obtained via parallel processing is as follow

A: Parallel processing is that the method during which we compute 2 or more processors that handles the…

Q: Generate the table creation DDL for the schema. Consider the keys primary and foreign.

A: The DDL stands for Data Definition language. The commands of DDL are : Create Alter Truncate Drop.

Q: in a database?

A: given - What is the most effective approach to use a sequence in a database?

Q: Consider a database with the following tables: Using sql query or steps Patient(PatientID.…

A: I give the code along with the output screenshot

Q: All of the following are algorithms to evaluate join, except: a. Nested loop       b. Index-nested…

A: Answer :  The B+ tree is a fair binary pursuit tree. It follows a staggered list design. In the B+…

Q: Computer Science: What is the  role of a query optimizer in the selection of an optimal set of…

A: Brief about the Query Optimizer: Query functionality is a feature of many data management systems…

Q: Define the term user view as it applies to database design.

A: Defined the given statement

Q: Under what circumstances is a DML operation not allowed on a simple view?

A: A DML or Data Manipulation Language is a part of a SQL (Structured Query Language) in which queries…

Q: What are the causes for the large query performance improvements gained with database parallel…

A: Introduction: Many processors are used for parallel processing in database servers.

Q: In the context of database construction, what exactly are homonyms and synonyms, and why should you…

A: Introduction : Homonyms: These are the same-named features. Despite the fact that they all have the…