CHOOSE Function

Returns one of the arguments, as specified by numeric index in the first argument.

Syntax

CHOOSE(index, value1, value2, [value3], ...)

Parameters

• index: integer
  A 1-based index into the list of values to follow.
• value1, value2, value3, ...: scalar
  The values to choose from.

Return Value

If index is between 1 and the number of value arguments, then the corresponding value argument is returned. If the index is out of bounds, NULL is returned.

Example

PRINT CHOOSE(1, 'A', 'B');  -- "A"
DECLARE @x = CHOOSE(5, 111, 222);
IF @x IS NULL
    PRINT 'Out of range!'  -- Prints.