Using Quotation Marks in Strings

The single quotation mark ( ' ) has no special significance in string literals delimited by double quotation marks. Conversely, double quotation mark ( " ) has no special significance in strings delimited by single quotation marks. For example, these strings are valid:

"Nancy's puppy jumped the fence"
'Billy told his kitten, "No!" '

A string delimited by double quotation marks can include a double quotation mark character by preceding it with another double quotation mark, as the following string shows:

"Enter ""y"" to select this row"