escape character (\)
1  
A character that precedes a multibyte character or non-printing ASCII character in a search expression. For example, \t represents the Tab character.
2  
A character indicating when to take a special character literally, as in a Query by Example (QBE) expression. For example, a backslash followed by a comma represents a comma character: \,
Related terms
character, Query by Example (QBE)

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