Escape Characters

Escape Characters

Escape Character	Actual Meaning
\'	Single quote '
\"	Double quote "
\n	Line Break
\r	Carriage Return
\t	tab
\\	Back Slash \
\%	% see below for details
\_	_ see below for details

Restrictions

1. If there are escape characters in identifiers (database name, table name, column name, alias Name)
   • Identifier without ``: Error will be returned because identifier must be constituted of digits, ASCII characters or underscore and can't be started with digits
   • Identifier quoted with ``: Original content is kept, no escaping
2. If there are escape characters in values
   • The escape characters will be escaped as the above table. If the escape character doesn't match any supported one, the escape character \ will be ignored(\x remaining).
   • % and _ are used as wildcards in like. \% and \_ should be used to represent literal % and _ in like. If \% and \_ are used out of like context, the evaluation result is \% and \_, instead of % and _.