Top "Null" questions

Using Thymeleaf when the value is null

I have some values in my database which can be null if they have not already been entered. But when …

html null thymeleaf

Error checking for NULL in VBScript

I have the following VBScript in a Classic ASP page: function getMagicLink(fromWhere, provider) dim url url = "magic.asp?fromwhere=" &…

asp-classic vbscript null nullreferenceexception nothing

Is it possible to set an object to null?

Further in my code, I check to see check if an object is null/empty. Is there a way to …

c++ object null is-empty stdoptional

Why use Optional.of over Optional.ofNullable?

When using the Java 8 Optional class, there are two ways in which a value can be wrapped in an optional. …

java java-8 nullpointerexception null optional

Best way to check if column returns a null value (from database to .net application)

I have a table with a DateTime column the column can have NULL values Now I connect to the database …

c# .net datetime datatable null

Identifying and removing null characters in UNIX

I have a text file containing unwanted null characters (ASCII NUL, \0). When I try to view it in vi I …

unix shell null special-characters

where to place CASE WHEN column IS NULL in this query

I'm having some trouble translating an MS Access query to SQL: SELECT id, col1, col2, col3 FROM table1 LEFT OUTER …

sql ms-access null case

How can I change NULL to 0 when getting a single value from a SQL function?

I have a query that counts the price of all items between two dates. Here is the select statement: SELECT …

sql tsql null sum

Check if DataRow exists by column name in c#?

I want to do something like this: private User PopulateUsersList(DataRow row) { Users user = new Users(); user.Id = int.Parse(…

c# null datarow

IN Clause with NULL or IS NULL

Postgres is the database Can I use a NULL value for a IN clause? example: SELECT * FROM tbl_name WHERE …

sql postgresql null conditional-statements in-clause