New posts in Varchar

Nvarchar or varchar what is better use multiply of 2 or rounded full numbers?

How long should SQL email fields be?

Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?

What is the difference between CHARACTER VARYING and VARCHAR in PostgreSQL?

Does a varchar field's declared size have any impact in PostgreSQL?

What is the string length of a GUID?

Using varchar(MAX) vs TEXT on SQL Server

Equivalent of varchar(max) in MySQL?

How do you convert VARCHAR to TIMESTAMP in MSSQL?

What is the difference between char, nchar, varchar, and nvarchar in SQL Server?