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Cross-RDBMS Version Checks in Flyway

How does one check that a database is definitively at the version that Flyway says it is? Or that a test teardown procedure leaves no trace in the database? Or verify that an undo script returns a database's metadata to that state it should be in for the version to which you're rolling back? This article shows how to do high-level version checks, by comparing JSON models.

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Question of the Day

Creating a JSON Document II

I want to create a JSON document that contains data from this table:

TeamID TeamNameCity         YearEstablished
1      Cowboys  Dallas       1960
2      Eagles   Philadelphia 1933
3      Packers  Green Bay    1919
4      Chiefs   Kansas City  1960
If I run this code, what document(s) is/are returned?
SELECT json_objectagg( n.city : n.TeamName)
FROM dbo.NFLTeams;

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