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When to use post or put in upsert?
PUT needs to be idempotent. This means if you PUT the same payload a second time the system state should not be changed. If the intended payload is a mix of new and existing and the expected behavior would be to create more new records the second time around then it would seem ‘upsert’ would line up more closely with POST.
How to avoid upsert patterns in SQL Server?
For alternative syntax, skip the SET TRANSACTION ISOLATION LEVEL SERIALIZABLE and include a lock hint: MERGE dbo.AccountDetails WITH (HOLDLOCK) AS myTarget. Just try it and catch and swallow any exception
Which is an example of a upsert operation?
The idea behind upsert operation is that clients have information about/decide on data structure and sending data with key value. So request model for upsert operation is very similar to update operation with key included as the example below:
How to avoid duplicate values for insert in SQL Server?
If it’s a high load environment where another command could insert the duplicate while this command is executing, you can use the WITH (HOLDLOCK) hint. Thanks for contributing an answer to Stack Overflow!
When to use HTTP PUT and HTTP POST?
The PUT method requests that the enclosed entity be stored under the supplied Request-URI. If the Request-URI refers to an already existing resource, the enclosed entity SHOULD be considered as a modified version of the one residing on the origin server.
When to use the post method or the PUT method?
The POST method is used to request that the origin server accept the entity enclosed in the request as a new subordinate of the resource identified by the Request-URI in the Request-Line. The PUT method requests that the enclosed entity be stored under the supplied Request-URI.
When to use not exists or not exists in upsert?
Assuming you are sending a set of rows in using something like a table-valued parameter, you would update using a join, and then insert using NOT EXISTS, but the pattern would still be equivalent to the first approach above:
When to use post or put in RESTful Web Services?
From RESTful Web services: The basics POST and PUT have distinct usage scenario: To create a resource on the server, use POST. To retrieve a resource, use GET. To change the state of a resource or to update it, use PUT. To remove or delete a resource, use DELETE.
When to use post or put for updating a record?
The expected method for updating an existing record is PUT. So your choice should be PUT. POST is generally used for inserting a new record with a brand new content like in the example below: POST /customers HTTP/1.1 Content-Type: