Dec 11, 2009 · VARCHAR is variable-length. CHAR is fixed length. If your content is a fixed size, you'll get better performance with CHAR. See the MySQL page on CHAR and VARCHAR …

Oct 6, 2008 · varchar [(n | max)] (character varying) Variable-length, non-Unicode string data. n defines the string length and can be a value from 1 through 8,000. max indicates that the …

Nov 11, 2009 · What is the meaning of varchar(-1) in SQL Server 2008? Is it an alternative for varchar(max)?

1 char and varchar actually becomes irrelevant if you have just 1 variable length field in your table, like a varchar or text. Mysql will automatically change all char to varchar. The fixed length/size …

This generates an Arithmetic Overflow because it is trying to implicitly cast the Val column to a NUMERIC (3,2), which naturally will overflow on a 2-digit value like 10. It's using NUMERIC …

I have variable length character data and want to store in SQL Server (2005) database. I want to learn some best practices about how to choose TEXT SQL type or choose VARCHAR SQL …

May 25, 2020 · Query plan Query 1 worked because when you removed the N (which is used to convert a string to nvarchar) SQL Server didn't need to perform an implicit convertion of …

28 The main difference between Varchar(n) and nvarchar(n) is: Varchar ( Variable-length, non-Unicode character data) size is upto 8000. It is a variable length data type Used to store non …

Feb 24, 2014 · I have tried similar solution like this but I was not succesful. In this case it says The data types ntext and varchar are incompatible in the equal to operator. after CONVERT ntext …

Jul 23, 2009 · VARCHAR is reserved by Oracle to support distinction between NULL and an empty string in the future, as ANSI standard prescribes. VARCHAR2 does not distinguish …