What are aggregates?
Q: What is the data dictionary's function in database design?
A: A good data dictionary helps in providing a detailed description of the features and attributes of…
Q: What is the best way to utilise a sequence in a database?
A: INTRODUCTION: As the name suggests, a sequence consists of a set of sequential integers. Because…
Q: When should I use a Cluster or Non-Cluster index?
A: There are various types of indexes in SQL server: Clustered Index Non-Clustered Index Column Store…
Q: . database by graphically or by using query. 3. Create table in your database by graphically and by…
A: The database is an organized collection of structured records or data and these data are retrieved,…
Q: What is the benefit of denormalization?
A: Database administrators apply denormalization as a procedure to improve the efficiency of the…
Q: How is a data race defined precisely
A: Data race The Thread Analyzer recognizes information races that happen during the execution of a…
Q: summarize the comparative features of sequential, indexed?
A: Sequential File Organization: A sequential file contains records that have been arranged by order.…
Q: Indexes that are not clustered and clustered are compared.
A: Comparison between clustered and non clustered index are mentioned below,
Q: In a relational database, a select operation reduces the size of a table by eliminating columns that…
A: Introduction: The Choose operation is used to select a subset of tuples based on criteria. It's…
Q: What is a data sublanguage?
A: Given:- What is a data sublanguage?
Q: What are aggregates, exactly
A: An aggregate function in SQL performs a calculation on multiple values and returns a single value.…
Q: In relational database menagement systems, what is a relation
A: In a relational database management systems, a relation is: A. A set of attributes B. An object C. A…
Q: In a normal database setup, there should be at least nine different items to discuss.
A: Introduction: The database management system (DBMS) software works as a wrapper over the database,…
Q: What is the exact difference between Repository and Data Dictionary?
A: We will be seeing about Data Dictionary and Repository as terms and how are they different from each…
Q: List three properties of data aggregates and the values that each of those properties can have.
A: the properties are as an given below :
Q: Which of the following is NOT a mechanism to de-identify data? A. Aggregation. B.…
A: The answer is as follows.
Q: What are the various reasons for considering SQL embedding in a 3GL
A: SQL stands for Structured Query Language. It used to access the Relational database. As we know…
Q: You are working with a database table that contains customer data. The table includes columns about…
A: You are working with a database table that contains customer data. The table includes columns about…
Q: What is the difference between group data and ungroup data and can you provide example to see the…
A: What is the difference between group data and ungroup data and can you provide example to see the…
Q: In a relational database, a select operation is used to minimise the size of a table by eliminating…
A: Select operation in a relational database is utilized to decreased the size of the table by…
Q: Exactly how many global descriptor tables are there?
A: The Global Descriptor Table (GDT). A GDT is one of two kinds of tables that store segment descriptor…
Q: What is the relationship between keys and data types?
A: keys A key in DBMS is an attribute or a set of attributes that help to uniquely identify a tuple…
Q: What is denormalization?
A: Given:- What is denormalization?
Q: What exactly is the index? What are the many sorts of indices?
A: Introduction: A database index may be constructed in such a manner that the data structure enhances…
Q: he structure of table students in DB Students database is as following: tudents(student_id int,…
A: Below is the code in PHP for student info in web page .Use search to see the details of the…
Q: Explain the distinction between an inner and an outer join.
A: The join clause is a special keyword in SQL (Structured Query Language), which is used to combine…
Q: In a relational database, a select operation may reduce the size of a table by removing columns that…
A: The question is about relational databases and determining whether or not a statement is true or…
Q: What function did we use to display a single row function in database?
A: The solution to the given problem is below.
Q: What data transformation methods are used?
A: Given What data transformation methods are used?
Q: consists of undertak es NextOKin Paper frstname papercode Assessment lastnam e H relationship phone…
A: Required: We have to develop Sql queries according to the given database schema.
Q: What are the different types of the aggregate functions?
A: Here in this question we have asked what are the different types of aggregate function we used in…
Q: Differentiate between functions that return a scalar, an aggregate, and a table
A: Programmers use the domain-specific language SQL to handle data stored in relational databases or…
Q: Write the following queries in SQL on the relational database schema for COMPANY database given in…
A: Given: Relational Database Schema for COMPANY database. To write the SQL Queries for: 1. Find the…
Q: Logical Database
A: Given :- The tables and column details along with the corresponding details is mention in the above…
Q: One of the recommendations regarding indexes is to specify a unique index for each primary key
A: IntroductionConstraints in SQL Server permits process the principles at the column level within the…
Q: One of the junior database developers has encountered some errors in a query they are working on.…
A: For printing the information in the console for the given PL/SQL code we need to set the server…
Q: Briefly discuss the three stages of database design
A: I have given an answer in step 2.
Q: What are aggregates?Why are they useful?
A: An aggregate function is a type of mathematical computation that involves a set of values which…
Q: A select operation in a relational database reduces the size of a table by removing columns that…
A: The question is on relational databases and finding if the statement is true or false.
Q: What does the data warehouse time variant feature imply?
A: Data Warehouse - You must have heard of the warehouse earlier which basically means a place to store…
Q: What is the division of data stored in a database row of a table?
A: Introduction: Data is kept in a database in the form of a row in a table:
Q: What are the typical database statistics measurements for resources
A:
Q: What is metadata, exactly? What is metadata in the context of a result set? When is it useful to use…
A: Introduction: The term "metadata" refers to information that describes other information. In…
Q: When is denormalization justified?
A: DENORMALIZATION: Denormalization is basically the process that is used on those databases which are…
Q: create a Relational Schema by mapping
A: Relational Schema Relation Primary Key Foreign Key…
Q: Explain how entities are transformed into tables
A: Given: Explain how entities are transformed into tables
Q: In a relational database, a select operation reduces the size of a table by removing columns that…
A: Definition: Data points that are connected to one another are stored and accessible in a relational…
What are aggregates?
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