Difference Between Char And Varchar In Teradata. In ANSI mode the value of n for the resulting BLOBn VARBYTEn CLOBn or VARCHARn is the same as the original string. CHAR stands for Character VARCHAR stands for Variable Character 4.
Apr 30 2020 In CHAR If the length of string is less than set or fixed length then it is padded with extra memory space. Feb 04 2003 The biggest not only factor in deciding whether to use CHAR vs VARCHAR is the data being stored. In ANSI mode the value of n for the resulting BLOBn VARBYTEn CLOBn or VARCHARn is the same as the original string.
VARCHAR is used to store variable length character strings up to 4000 characters.
This conversion is supported for CHAR and VARCHAR types only. The maximum storage size of varchar is 2 GB and the real storage size of data is the actual length of data plus two bytes. The biggest potential advantage for VARCHAR is that it can make the majority of the rows shorter. Char can store only fixed size non-Unicode string characters but varchar can store variable sizes of strings.
