Storing Boolean Values In SQL?

Question

I'm designing a SQL datbase table and a couple of the columns need to hold either a 1 or 0 (true or false). I define the columns to be of type binary(1), but now I don't know how to insert a true or false value into the database. inserting "true" or "1" doesn't work (it says either int or bool cannot be converted to binary)...

Answer 1

Use the bit data type instead for your column. Then you can insert true/false directly.

Answer 2

Use bit

This accepts the strings "true" and "false".

It also maps directly to the c# boolean type which is useful

Answer 3

由于SQL Server中没有布尔值，因此您可以使用bit并将其设置为0/1

Answer 4

This depends on what database you are using. Eg, for SQL Server you can use bit and then set it to true using an integer 1. For Access, you can use a boolean and set it to True/False.