nvl2
function
Applies to: Databricks SQL Databricks Runtime
Returns expr2
if expr1
is not NULL
, or expr3
otherwise. This function is a synonym for CASE WHEN expr1 IS NOT NULL expr2 ELSE expr3 END
.
Syntax
nvl2(expr1, expr2, expr3)
Arguments
expr1
: An expression of any type.expr2
: An expression of any type.expr3
: An expression that shares a least common type withexpr2
.
Returns
The result is least common type of expr2
and expr3
.
Examples
> SELECT nvl2(NULL, 2, 1);
1
> SELECT nvl2('spark', 2, 1);
2
Related functions
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