Little White House. Georgia State Parks and Historic Sites. At Warm Springs, Franklin D. Roosevelt, 32nd president of the United States found the strength to resume his political career and a positive outlet for his own personal struggle with polio through creation of the Warm Springs Foundation.
On the other hand, VARCHAR is a variable length Data Type. For example, if you declare a variable/column of VARCHAR (10) data type, it will take the number of bytes equal to the number of characters stored in this column.
The following table illustrates the differences between CHAR and VARCHAR by showing the result of storing various string values into CHAR(4) and VARCHAR(4) columns (assuming that the column uses a single-byte character set such as latin1).