![]() ![]() ![]() Since you can represent any SQL result as a JSON document, you have a way, using a JSON diff function like this, a very convenient way of checking the result of any SQL statement that produces a result, whether it is using a procedure, function or batch. It is useful to be able to check in SQL Server that a JSON document is what you expect and hope it to be. Fortunately, the problem of arrays doesn’t crop up so much in SQL Server, because the implementation of JSON can’t easily produce them, and this function is sufficient for my unit-testing needs. You can use a Set implementation which doesnt allow duplicate values instead of ArrayList. What if you wanted to judge the similarity of objects based only on the values of certain properties? I’ve taken a literal approach here, and there is plenty of opportunity for making something more complex, based on similar principles. It sounds easy, but the references won’t match then so it would take quite a bit of restructuring then. You may want a ‘lax’ mode that matched elements in an array regardless of order. Using this, called dbo.Compare_JsonObject, we can simply do this. Fortunately, we have our table-valued function that compares any two results converted to JSON. When in the JSON with Comments mode, you can use single line ( //) as well as block comments ( / /) as used in. This mode is used for the VS Code configuration files such as settings.json, tasks.json, or launch.json. You want to do it the best way according to the version of SQL Server, but you want the two versions to give the same output. In addition to the default JSON mode following the JSON specification, VS Code also has a JSON with Comments (jsonc) mode. Imagine, if you can, that you are writing a routine that gives you a list of departments for every group within your AdventureWorks organisation. This is probably as near as you’d want.Īlthough this routine is designed to compare JSON documents, and takes them as input, it can be used for comparing any results. An XML or JSON document is the nearest we get to an object in SQL Server. It is often necessary to compare objects, particularly when you are working on a routine that generates an object and you want to check that an improvement you’ve made is actually returned the same result. If you are working on any module or routine such as a procedure, function or batch that produces a result, then you will want to compare it with something that you’ve prepared earlier to make sure that it is the same. Checking for differences between JSON documents.
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