Strings are used to hold text. The text must be placed between double quotation marks (") or apostrophes (') and cannot be split between lines. If you want to include double quotation marks in a string delimited by double quotation marks, use two consecutive double quotation marks. Similarly, if you want to include an apostrophe in a string delimited by apostrophes, use two consecutive apostrophes.
Example
"This is a string."
"123"
"The word ""hello"" is quoted."
'This is also a string.'
'123'
'Last Year''s Sales'
If you use double quotes for the left side of the string, you must use double quotes on the right side. Similarly for apostrophes. The following example is incorrect:
'Not a valid string."
You can extract individual elements or substrings from a string by specifying the character position or a range of character positions. Negative values are allowed; they specify the position starting from the end of the string.
"hello" [2] //Equal to "e"
"hello" [-5] //Equal to "h"
"604-555-1234" [1 to 3] //Equal to "604"
"abcdef" [-3 to -1] //Equal to "def"
You can also extract substrings from a string using the Left, Right and Mid functions.