As the error message tells you – you can not have two rows with the same value in the columns dementia_type, snapid since they need to be unique. You have to make sure that the two databases has the same values for dementia_type, snapid. A workaround would be to add a column to your table alter table t_types_of_dementia add … Read more
The reason you are getting the DECLARE error from your dynamic statement is because dynamic statements are handled in separate batches, which boils down to a matter of scope. While there may be a more formal definition of the scopes available in SQL Server, I’ve found it sufficient to generally keep the following three in … Read more
In order to avoid such error you could use CASE + ISNUMERIC to handle scenarios when you cannot convert to int.Change To Basically this is saying if you cannot convert me to int assign value of 0 (in my example) Alternatively you can look at this article about creating a custom function that will check … Read more
Yeah, it’s typically because it starts out as ‘where 1 = 0’, to force the statement to fail. It’s a more naive way of wrapping it up in a transaction and not committing it at the end, to test your query. (This is the preferred method).
Group By X means put all those with the same value for X in the one group. Group By X, Y means put all those with the same values for both X and Y in the one group. To illustrate using an example, let’s say we have the following table, to do with who is attending what subject at … Read more
A table contains data, a view is just a SELECT statement which has been saved in the database (more or less, depending on your database). The advantage of a view is that it can join data from several tables thus creating a new view of it. Say you have a database with salaries and you need to … Read more
from is a keyword in SQL. You may not used it as a column name without quoting it. In MySQL, things like column names are quoted using backticks, i.e. `from`. Personally, I wouldn’t bother; I’d just rename the column. PS. as pointed out in the comments, to is another SQL keyword so it needs to … Read more
As described in Cast Functions and Operators: The type for the result can be one of the following values: BINARY[(N)] CHAR[(N)] DATE DATETIME DECIMAL[(M[,D])] SIGNED [INTEGER] TIME UNSIGNED [INTEGER] Therefore, you should use:
You will want to use the YYYYMMDD for unambiguous date determination in SQL Server. If you are married to the dd-mm-yy hh:mm:ss xm format, you will need to use CONVERT with the specific style. 5 here is the style for Italian dates. Well, not just Italians, but that’s the culture it’s attributed to in Books Online.
You have to include the schema if isnt a public one Or you can change your default schema Check your table schema here For example if a table is on the default schema public both this will works ok But sectors need specify the schema