What type of database consists of a schema, tables, fields, and constraints?*1 pointRelational databaseDocument databaseNoSQLNon-relational database

Analyzing the Options

1. Relational Database: This type of database uses a structured schema and organizes data into tables (also known as relations) with defined fields (columns) and constraints (such as primary keys and foreign keys). Each table can be related to others, which allows for complex queries and relationships.

2. Document Database: Document databases store data in document formats (like JSON or BSON), which do not require a fixed schema. While they can impose some structure, they are generally schema-less and more flexible than relational databases.

3. NoSQL: This term encompasses various database technologies that do not use traditional table-based schemas, including document databases, graph databases, and key-value stores. Each has its own structure and way of handling data, but they often do not conform to relational structures.

4. Non-relational Database: This term is synonymous with NoSQL, indicating databases that do not follow the relational model. As such, they may not have schemas, tables, and constraints in the same manner as relational databases.

Conclusion

Based on the definitions and characteristics of the database types mentioned, the correct answer is:

Relational Database: It consists of a schema, tables, fields, and constraints, making it the prominent choice among the options listed.