I have a lot of '1.0' values of type nvarchar(max). I would like to convert\cast them to int but below queries:
SELECT CONVERT(int, Quantity)
FROM MyTable
or
SELECT CAST(Quantity as int)
FROM MyTable
or
ALTER TABLE MyTable
ALTER COLUMN [Quantity] int;
returns error message: Conversion failed when converting the nvarchar value '1.0' to data type int.
How to convert nvarchar '1.0' to int?
Set the value to an appropriate format first:
update mytable
set quantity = convert(decimal, quantity)
where quantity like '%.%';
Then do the alter table
.
Here is a db<>fiddle using SQL Server.
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