what is schema

A schema is a term used in various fields, including computer programming, psychology, and search engine optimization (SEO) . In computer programming, a schema refers to the organization or structure for a database. It is a blueprint of how data will appear and describes the shape of the data and how it relates to other models, tables, and databases. A database schema is the structure of a database described in a formal language supported typically by a relational database management system (RDBMS) . In psychology, a schema is a mental structure that helps us understand how things work and how we organize knowledge. In SEO, schema markup (also known as structured data) is a code standard used to help search engines understand and categorize webpage content. It is a vocabulary that helps search engines better understand the information on a page. Overall, a schema is a way of organizing and structuring information to make it easier to understand and use.