We are Chennai based leading company engaged in supplying of electrical and automation systems for various industrial segments. For this key option binary review most manufacturing companies are looking for competent engineers with basic aptitude towards automation and ability to work on varied brands of PLCs, Drives, MMI and SCADA.
This prompted us to enter in this business domain. You can select any one of the Industrial Training from the below mentioned courses. James Sullivan explore the features and advantages of two widely used types of NoSQL databases. NoSQL databases are known for their flexibility and performance, but no single type of NoSQL database is right for all use cases. This article discusses two types of NoSQL databases, key-value databases and document databases, and describes how to decide between the two when choosing a database. Simplicity: Key-Value Databases Key-value databases and document databases are quite similar. Key-value databases are the simplest of the NoSQL databases: The basic data structure is a dictionary or map.
You can store a value, such as an integer, string, a JSON structure, or an array, along with a key used to reference that value. For example, a simple key-value database might have a value such as “Douglas Adams”. This value is then assigned an ID, such as cust1237. Using a JSON structure adds complexity to the database. For example, the database could store a full mailing address in addition to a person’s name. Douglas Adams”, street: “782 Southwest St.