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This is documentation for Caché & Ensemble.

For information on converting to InterSystems IRIS, see the InterSystems IRIS Adoption Guide and the InterSystems IRIS In-Place Conversion Guide, both available on the WRC Distributions page (login required).

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Concatenation Operator (&)

Used to force string concatenation of two expressions.


result = expression1 & expression2


The & operator syntax has these parts:

result Any variable.
expression1 Any expression.
expression2 Any expression.


Whenever an expression is not a string, it is converted to a String subtype. Any expression that is Empty is also treated as a zero-length string.

See Also