在SQL Server中,可以使用IIF函数来替代CASE语句。IIF函数是一个内置的逻辑函数,用于根据条件返回不同的值。 IIF函数的语法如下: IIF(condition, value_if_true, value_if_false) 其中,condition是一个逻辑表达式,如果为真,则返回value_if_true;如果为假,则返回value_if_false。 使用IIF函数可以简化复杂的CASE语句...
For more information, seeIIF Function Query Hints in SQL Server Analysis Services 2008andExecution Plans and Plan Hints for MDX IIF Function and CASE Statement. Examples The following query shows a simple use ofIIFinside a calculated measure to return one of two different string values when the ...
For more information, seeIIF Function Query Hints in SQL Server Analysis Services 2008andExecution Plans and Plan Hints for MDX IIF Function and CASE Statement. Examples The following query shows a simple use ofIIFinside a calculated measure to return one of two different string values when the ...
EAGER and STRICT are mutually exclusive in the hint; they can be used in the same IIF(,,) over different expressions. For more information, see IIF Function Query Hints in SQL Server Analysis Services 2008 and Execution Plans and Plan Hints for MDX IIF Function and CASE Statement. Examples ...
SQL Server Azure SQL Database Azure SQL Managed Instance Returns one of two values, depending on whether the Boolean expression evaluates to true or false in SQL Server. Transact-SQL syntax conventions Syntax syntaxsql IIF(boolean_expression,true_value,false_value) ...
SQL Server Azure SQL Database Azure SQL Managed Instance Returns one of two values, depending on whether the Boolean expression evaluates to true or false in SQL Server. Transact-SQL syntax conventions Syntax syntaxsql IIF(boolean_expression,true_value,false_value) ...
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在SSRS(SQL Server Reporting Services)中,可以使用表达式字段来实现复杂的逻辑和计算。IIf函数是SSRS表达式中的一个条件函数,用于根据给定的条件返回不同的值。 当需要在IIf语句中嵌入多个参数时,可以使用嵌套的IIf函数来实现。下面是一个示例: =IIf(条件1, 值1, IIf(条件2, 值2, IIf(条件3, 值3, 默认值)...
Logical Functions - IIF (Transact-SQL) Logical Functions - IIF (Transact-SQL) Returns one of two values, depending on whether the Boolean expression evaluates to true or false in SQL Server. Syntax syntaxsql IIF( boolean_expression, true_value, false_value )...
高阶函数以函数作为参数或者以函数作为返回值返回的函数lst = [1,2,3,4,5,6,7,8,9,10] def fn2(i): #求偶数函数 if i % 2 == 0: return True def fn(func,l): #高阶函数(将函数作为参数) lst2=[] for n in l: if func(n): ...