Strings in a DataFrame, but dtype is object?

Why does Pandas tell me that I have objects, although every item in the selected column is a string — even after e...

How to create ENUM type in SQLite??

I need to convert a table from MySQL to SQLite, but I can't figure out how to convert an enum field, because I can't...

What is the purpose of a question mark after a type (for example: int? myVariable)??

Typically the main use of the question mark is for the conditional, x ? "yes" : "no". But I have seen another use f...

How to check if type of a variable is string??

Is there a way to check if the type of a variable in python is a string, like: isinstance(x,int); for integer val...

SML: difference between type and datatype?

I'm pretty new at SML and I would like to make sure I really know the basics. What is the difference between type an...

How do you know a variable type in java??

Let's say I declare a variable: String a = "test"; And I want to know what type it is, i.e., the output should be...

How To Change DataType of a DataColumn in a DataTable??

I have: DataTable Table = new DataTable; SqlConnection = new System.Data.SqlClient.SqlConnection("Data Source=" + S...