Enumerated Types
In this series on creating custom data types in PostgreSQL using Navicat Premium 17 we've explored a couple of options so far. In part 1, we learned how to create a custom Domain for the free DVD Rental database. Last week, we created a Composite Type to return complex data from a user-defined function. Today's blog will cover Enumerated Types, which limit values a set of predefined options.
Composite Types
Welcome to the second installment of this series on creating custom data types in PostgreSQL using Navicat Premium 17. In part 1, we learned how to create a custom Domain for the free DVD Rental database. A Domain is a user-defined data type with constraints such as NOT NULL and CHECK. In today's blog, we'll create a Composite Type to return complex data from a user-defined function.
Domains
Storing data in proper formats ensures data integrity, prevents errors, optimizes performance, and maintains consistency across systems by enforcing validation rules and enabling efficient data management. For these reasons, top tier relational databases like PostgreSQL offer a variety of data types. In addition, PostgreSQL enables custom data type creation via the "CREATE DOMAIN" and "CREATE TYPE" statements, allowing developers to extend data types for enhanced application-specific data validation, integrity, and consistency. In today's blog, we'll learn how to create a custom Domain for the free DVD Rental database using Navicat Premium 17. Part 2 will cover Types.
Migrating data between heterogeneous repositories - that is to say, where the source and target databases are of different database management systems from different providers - presents several challenges. In some cases, it is possible to connect to both databases simultaneously. However, there are times that it is simply not possible. When presented with such a dilemma, database practitioners have no choice but to populate tables from a dump file. Navicat can be of great help in that process. The Import Wizard allows you to import data to tables/collections from a variety of sources, including CSV, TXT, XML, DBF and more. Moreover, you can save your settings as a profile for future use or setting automation tasks. In today's blog, we'll use the Navicat Import Wizard to migrate data from the PostgreSQL "dvdrental" database to a MySQL 8 instance using the FREE Navicat Premium Lite 17.
Navicat's database administration and development tools have long been designed with collaboration in mind. Now, thanks to the recent launch of Navicat On-Prem Server, collaboration takes center stage, allowing us to share connection settings, queries, aggregation pipelines, snippets, model workspaces, Business Intelligence (BI) workspaces and virtual group information with team members across the globe - and all in real-time. While the last several blogs described how to share database objects using Navicat On-Prem Server, today's entry will focus on how to accomplish the same thing using Navicat Premium 17.
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