snowflake.snowpark.CaseExpr.when¶ CaseExpr.when(condition: ColumnOrSqlExpr, value: ColumnOrLiteral) → CaseExpr[source]¶ Appends one more WHEN condition to the CASE expression. Parameters: condition – A Column expression or SQL text representing the specified condition. value – A Column expression or a literal value, which will be returned if condition is true.