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Data warehouse database
Designed for analysis of business measures by categories and attributes
Optimized for bulk loads and large, complex, unpredictable queries that access many rows per table.
Loaded with consistent, valid data; requires no real time validation
Supports few concurrent users relative to OLTP
OLTP database
Designed for real time business operations.
Optimized for a common set of transactions, usually adding or retrieving a single row at a time per table.
Optimized for validation of incoming data during transactions; uses validation data tables.
Supports thousands of concurrent users.
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Why relational databse is the most popular database model?
Relational databases are the most popular database model due to their structured approach to data organization, which uses tables to represent relationships between data points. They support powerful querying capabilities through SQL, making it easy to retrieve and manipulate data. Additionally, their adherence to ACID properties ensures data integrity and reliability, which is crucial for many applications. Finally, widespread support from numerous tools and frameworks enhances their usability and integration into diverse software ecosystems.
To decide whether observed differences between samples reflect actual differences between?
statistical significance
Difference between database file and flat file in DBMS?
Database file is one that is stored on a server and it is in the format that the database needs to read it. It is also stored in the database catalog. A flat file is one that is dumped from a database to import or export into another database or program. A flat file is fields of data separated by delimiters, which keep the fields separated for export/import.
How many steps does the ORM process have?
The ORM (Object-Relational Mapping) process typically involves four main steps: mapping the database schema to an object-oriented model, generating the corresponding classes based on the schema, performing CRUD (Create, Read, Update, Delete) operations using these classes, and managing the relationships between objects. This allows developers to interact with the database using high-level programming constructs instead of SQL queries. The specific implementation details may vary depending on the ORM framework used.
What are the differences between qualitative and quantitative models?
distinguish between qualitative and quantitative model
What are the differences between database management system Vs relational dbms?
the database management system analysis the data or record but relational database management system links the database to each other.
How are relationship between tables expressed in a relational database?
Tables are the basic building blocks of a relational database.
What are the differences between Oracle 10g and ms sql database?
Oracle is an RDBMS aka Relational Database Management System and SQL (Structured Query Language) is a programming language.
Difference between database and relational database?
A relational database is a type of database, so in one sense there is no difference. There are various kinds of database. A relational database is one type. Others include network and hierarchical.
Difference between database and relational database explain with example?
Database = Generic name for a system to store data Relational Database = A specific type of database that utilizes relationships between data to not only store the data but further its efficiency in its manipulation.
What are the differences between Oracle and SQL?
Oracle is an RDBMS aka Relational Database Management System and SQL (Structured Query Language) is a programming language.
Differences between relational database management system and database management system?
A relational database management system (RDBMS) is a type of DBMS that stores data in a structured format using tables with rows and columns, and enforces relationships between data. A DBMS, on the other hand, is a broader term that encompasses various systems for managing databases, including relational, object-oriented, and NoSQL databases. In summary, an RDBMS is a specific type of DBMS that organizes data in a relational model.
Find out functional dependencies?
A constraint between two sets of attributes is known as functional dependency in relational database. Determination of functional dependencies is vital in database denormalization, normalization and relational model.
Are there any major similiarities between object oriented databases and relational databases?
In a Object Oriented Database, information is given in the form of objects as used in programming languages. "When database capabilities are combined with object programming language capabilities, the result is an object database management system (ODBMS). An ODBMS makes database objects appear as programming language objects in one or more object programming languages." (http://en.wikipedia.org/wiki/Object_database)"A relational database is a database that conforms to the relational model, and refers to a database's data and schema (the database's structure of how those data are arranged). Common usage of the term "Relational database management system" technically refers to the software used to create a relational database, but sometimes mistakenly refers to a relational database." (http://en.wikipedia.org/wiki/Relational_database)
What is the database that contains tables linked by common fields?
A relational database is a database that contains tables linked by common fields. These common fields are used to establish connections between the tables and to retrieve related data across multiple tables using queries.
What is a database that understands how information is connected called?
A database that understands how information is connected is called a relational database. It organizes data into tables with rows and columns, and uses keys to establish relationships between different tables. This allows for efficient storage and retrieval of interconnected information.
What is the most common type of relationship between tables in a relational database?
one-to-many relationship
