SQL Server: How to handle 'The conversion of a varchar data type to a datetime data type resulted in an out-of-range value' scenarios?
Can someone help me understand I'm confused about I'm building a feature where I'm reviewing some code and Quick question that's been bugging me - This might be a silly question, but I'm working with a frustrating scenario while trying to insert data into my SQL Server database....... Specifically, I'm getting the behavior: `The conversion of a varchar data type to a datetime data type resulted in an out-of-range value.` This happens when I'm inserting a date string into a `datetime` column, and it's causing my application to crash. Here’s the code snippet where this question arises: ```sql INSERT INTO MyTable (DateColumn) VALUES ('2023-02-30') -- Incorrect date ``` I've also tried inserting valid date formats such as: ```sql INSERT INTO MyTable (DateColumn) VALUES ('2023-02-28') -- Valid date INSERT INTO MyTable (DateColumn) VALUES ('2023-03-01') -- Valid date ``` However, the behavior continues when the input data comes from a user-uploaded CSV file, which sometimes has improperly formatted dates. I’ve written a script to check the validity of these dates before insertion, but I’m still running into problems. Here’s my validation script: ```sql DECLARE @DateValue VARCHAR(10) SET @DateValue = '2023-02-30' IF ISDATE(@DateValue) = 0 BEGIN PRINT 'Invalid date format' END ELSE BEGIN INSERT INTO MyTable (DateColumn) VALUES (CAST(@DateValue AS DATETIME)) END ``` Even with this check, if the input is not in a recognized format, it still attempts to insert, leading to the same behavior. I'm using SQL Server 2019, and it seems that the scenario might stem from regional date settings or the input format used in the CSV. I've verified the server's language settings, and they're set to `English (United States)`. How can I properly handle these edge cases to prevent this behavior? Is there a recommended way to sanitize date inputs before insertion? For context: I'm using Sql on Windows. For context: I'm using Sql on Windows. Am I missing something obvious? Could this be a known issue? The project is a desktop app built with Sql. Has anyone dealt with something similar? Thanks in advance!