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For example, in an Order table, both OrderNumber and ProductId may be required to uniquely identify a record. Composite keyĪ composite key is one that is composed of two or more columns that are together required to uniquely identify a record in a table. A foreign key always has a relationship to a primary key, for example, to the CustomerId primary key in the Customer table. For example, CustomerId in Transaction table represents a customer who has completed a transaction. It helps to establish a link between two tables. Foreign keyĪ foreign key is a column or a combination of columns whose values match a primary key in a different table. For example, a key on the CustomerId column enforces uniqueness, to identify each customer in the table Customer. It must uniquely identify tuples in a table. The primary key helps to uniquely identify the whole table. For example, CustomerId is a column in the table Customer. There are around 30,000 columns in the database templates. Each column has a name, description, data type and is associated with a table. ColumnĮach table is described by a set of columns that represent the values and data that make up the table. For example, Customer, Store, Channel, and so on. For example, the retail template has one enterprise template called "Retail".Ī table is an object with an independent existence that can be differentiated from other objects. These templates serve as an accelerator for many types of large projects. It provides a high-level overview and describes the connectivity between the related business areas. Enterprise templatesĮnterprise database templates contain a subset of tables that are most likely to be of interest to an organization within a specific industry. Use these templates to create your lake database and use Azure Synapse analytical runtime to provide insights to business users. These templates provide schemas for predefined business areas, enabling data to be loaded into a lake database in a structured way.
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Azure Synapse Analytics provides industry specific database templates to help standardize data in the lake.