You use IIf to determine if another expression is true or false. If the expression is true, IIf returns one value; if it is false, IIf returns another. You specify the values IIf returns.

2024年9月3日 · IIF is a shorthand way for writing a CASE expression. It evaluates the Boolean expression passed as the first argument, and then returns either of the other two arguments based on the result of the evaluation.

IIf 函数通常用于在查询中创建计算字段。 语法相同，但除了在查询中，必须在表达式前面加上字段别名和冒号 (：) 而不是等号 (=) 。

IIF ()函数判断或评估第一个参数，如果第一个参数为真，则返回第二个参数；否则，它返回第三个参数。 在SQL Server中使用的IIF ()函数将if-else逻辑添加到查询中。 用法: 语法中使用的参数： 这是一个需要判断的价值。 它必须是有效的布尔值，否则该函数将引发错误。 如果boolean_value为true，则为要得到的值。 如果boolean_value为false，则为该值。 要知道的事实：IIF ()函数类似于CASE表达式- WHEN boolean_expression . THEN true_value. ELSE. false_value. 输出： 结 …

2024年12月31日 · In particular, this tip will dive into using the functions: 1) SSRS IIF, 2) SSRS SWITCH and 3) SSRS CHOOSE. Most developers are somewhat familiar with the iif method, but switch is less common and choose even lesser known. Choose is a SQL Construct in SELECT statements and the focus in this tip will be usage in SSRS.

Summary: in this tutorial, you will learn how to use the SQL Server IIF() function to add if-else logic to queries. The IIF() function accepts three arguments. It evaluates the first argument and returns the second argument if the first argument is true; otherwise, it returns the third argument. The following shows the syntax of the IIF() function:

2025年1月27日 · Evaluates different branch expressions depending on whether a Boolean condition is true or false. The IIf function takes three arguments: iif (<condition>, <then branch>, <else branch>). A condition that evaluates to true (1) or false (0). It must be a valid Multidimensional Expressions (MDX) logical expression.

2007年5月13日 · 在 SQL Server 中，可以使用 IIF 函数来实现条件逻辑。IIF 函数接受三个参数：条件表达式、如果条件为真时的返回值和如果条件为假时的返回值。以下是 IIF 函数的语法： ```sql IIF(condition, true_value, false_...

The SQL Server IIF function is a logical function introduced in SQL Server 2012 (Transact-SQL). It stands for “Immediate IF” and provides a more concise way to write a simple CASE statement with two possible outcomes.

2025年1月20日 · What is the IIF Function? The IIF function is a shorthand way of implementing conditional logic, allowing you to return one of two values based on a boolean condition. It operates similarly to an inline IF-THEN-ELSE statement. Syntax IIF(boolean_expression, true_value, false_value) boolean_expression: The condition to evaluate.