Strings - Sybase Adaptive Server Anywhere Reference

Strings

Strings
Special characters
in strings
Compatibility
224
Strings are of the following types:
♦
literal strings
♦
expressions with CHAR or VARCHAR data types.
An expression with a CHAR data type may be a built-in or user-defined
function, or one of the many other kinds of expressions available.
$
For more information on expressions, see "Expressions" on page 230.
A literal string is any sequence of characters enclosed in apostrophes ('single
quotes'). A SQL variable of character data type can hold a string. The
following is a simple example of a literal strings:
'This is a string.'
You represent special character in strings by escape sequences, as follows:
♦
To represent an apostrophe inside a string, use two apostrophes in a row.
For example:
'John''s database'
♦
To represent a new line character, use a backslash followed by n (\n).
For example:
'First line:\nSecond line:'
♦
To represent a backslash character, use two backslashes in a row (\\). For
example:
'c:\\temp'
♦
Hexadecimal escape sequences can be used for any character, printable
or not. A hexadecimal escape sequence is a backslash followed by an x
followed by two hexadecimal digits (for example, \x6d represents the
letter m). For example:
'\x00\x01\x02\x03'
For compatibility with Adaptive Server Enterprise, you can set the
QUOTED_IDENTIFIER database option to OFF. With this setting, you can
also use double quotes to mark the beginning and end of strings. The option
is set to ON by default.