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antzucaro.com | ||
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buttondown.com
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| | | | | In a SQL database, you can set up a foreign key with REFERENCES: nullbitmap=# CREATE TABLE ab (a INT PRIMARY KEY, b INT); CREATE TABLE nullbitmap=# INSERT... | |
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www.red-gate.com
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| | | | | One of the most important aspects of data management is the ability to ensure that the data in your database is well defined and consistent. Some aspects of that are ensured through the relational data structures you design. Another piece of control is using the correct data type. Then, we get to constraints. A constraint is a way to validate data prior to adding it to your database. This is one more tool in the toolbox that helps you maintain good data. | |
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nick.zoic.org
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| | | | | [AI summary] The post explains the error caused by defining foreign keys between InnoDB and MyISAM tables in MySQL and MariaDB, offering a solution to migrate legacy tables to InnoDB. | |
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tsqltuesday.azurewebsites.net
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| | | [AI summary] This post invites readers to discuss how they have recently used new Microsoft data platform features like Azure, Power BI, and SQL Server 2016 to solve legacy database problems. | ||