What are business rules?

Business rules are intended to assert business structure or to control or influence the behavior of the business. Business rules describe the operations, definitions and constraints that apply to an organization. … For example, a business rule might state that no credit check is to be performed on return customers.

What do business rules require to be effective?

Q2 what do business rules require to be effective? To be effective, business rules must be easy to understand and widely disseminated, to ensure that every person in the organization shares a common interpretation of the rules.

Why should business rules be rendered in writing?

Business rules are derived from a description of operations. … Business rules must be rendered in writing and updated to reflect any change in the organization’s operational environment. Properly written business rules are used to define entities, attributes, relationships, and constraints.

Which of the following is true of NoSQL databases quizlet?

Which of the following is true of NoSQL databases? They are geared toward transaction consistency rather than performance. … A disadvantage of the relational database management system (RDBMS) is its inability to hide the complexities of the relational model from the user.

What are examples of business rules?

In general, business rules define specific instructions or constraints on how certain day-to-day actions should be performed. For example, business rules can include: A decision-making approval structure for invoice processing where only certain managers can sign off on invoices totaling a specific amount.

What are sources of business rules?

Sources of business rules are managers, policy makers, department managers, written documentation, procedures, standards, operation manuals, and interviews with end users.

Which of the following is true for NoSQL databases?

Which of the following statements is true of NoSQL databases? They don’t support any Structured Query Language (SQL) functions. They are useful for managing large sets of distributed data. They are the most commonly used databases today.

Which of the following is true about NoSQL and SQL?

A NoSQL database has dynamic schema for unstructured data. Data is stored in many ways which means it can be document-oriented, column-oriented, graph-based or organized as a KeyValue store.

Key highlights on SQL vs NoSQL:
These databases have fixed or static or predefined schema They have dynamic schema
May 31, 2021

What is not true about NoSQL databases?

NoSQL is not suitable for storing structured data. NoSQL databases allow storing non-structured data. NoSQL is a new data format to store large datasets.

What is NoSQL and features of NoSQL?

NoSQL is a non-schema alternative to SQL and RDBMSs designed to store, process, and analyze extremely large amounts of unstructured data. NoSQL databases deemphasize the principles of ACID (atomicity, consistency, isolation, and durability). … They can process both unstructured and semi-structured data.

What is the type of NoSQL database among the following?

Key-value stores are the simplest NoSQL databases. … Cassandra and HBase are wide-column databases. Document databases pair each key with a complex data structure known as a document. Documents can contain many different key-value pairs, or key-array pairs, or even nested documents.

What is aim of NoSQL Mcq?

What is the aim of NoSQL? NoSQL provides an alternative to SQL databases to store textual data. NoSQL databases allow storing non-structured data.

What means NoSQL?

not only SQL
When people use the term “NoSQL database,” they typically use it to refer to any non-relational database. Some say the term “NoSQL” stands for “non SQL” while others say it stands for “not only SQL.” Either way, most agree that NoSQL databases are databases that store data in a format other than relational tables.

Where is NoSQL used?

The major purpose of using a NoSQL database is for distributed data stores with humongous data storage needs. NoSQL is used for Big data and real-time web apps. For example, companies like Twitter, Facebook and Google collect terabytes of user data every single day.

What are the business drivers for NoSQL?

Many organizations considering NoSQL systems do so to overcome common issues such as volume, velocity, variability, and agility, the business drivers behind the NoSQL movement.

Is MongoDB a database?

MongoDB is a popular document database. Data can be in a key-value format which maps a single attribute (its “key”) to its value.

What is Cassandra database?

Cassandra is a distributed database management system which is open source with wide column store, NoSQL database to handle large amount of data across many commodity servers which provides high availability with no single point of failure. It is written in Java and developed by Apache Software Foundation.

Why is MongoDB a NoSQL database?

Like other NoSQL databases, MongoDB doesn’t require predefined schemas. It stores any type of data. This gives users the flexibility to create any number of fields in a document, making it easier to scale MongoDB databases compared to relational databases.