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7.4 NCASE Statement

The ncase statement selects one of a set of statements for execution, depending on a single control value.

NCASE expr
[ statement2
  … ]
[ ELSE statement ]

The control expression expr is evaluated. It must have a scalar value, and the integer part of this value is then used as control value. If the control value is zero, one, etcetera, then the first, second, etcetera, statement statement1, statement2, etcetera, is executed. If there is no statement corresponding to the control value, then the else statement statement is executed, if an else part was specified. Otherwise, this ncase statement does nothing and control passes directly to the next one.