Web说说VBA中的Select Case语句. Select Case语句也是条件语句之一,而且是功能最强大的条件语句。. 它主要用于多条件判断,而且其条件设置灵活、方便,在工作中使用频率极高。. 本节介绍Select Case语句的语法及应用案例.. [statements-n]] ... Select Case语句包括四部 … WebSELECT Example Without DISTINCT. The following SQL statement selects all (including the duplicates) values from the "Country" column in the "Customers" table: Example Get your own SQL Server. SELECT Country FROM Customers; Try it Yourself ». Now, let us use the SELECT DISTINCT statement and see the result.
SQL利用Case When Then多条件 - 在途中# - 博客园
WebJan 7, 2013 · 3 Answers. The MSDN is a good reference for these type of questions regarding syntax and usage. This is from the Transact SQL Reference - CASE page. USE AdventureWorks2012; GO SELECT ProductNumber, Name, "Price Range" = CASE WHEN ListPrice = 0 THEN 'Mfg item - not for resale' WHEN ListPrice < 50 THEN 'Under $50' … WebMay 11, 2024 · mysql case when 多参数条件语法. 下面的 sql 语句是要将 status 列根据一个条件或者多条件转换为对应的值. 其中要注意 case 关键字后面不能带上列名 status 而是 … create a celebration of life invitation
MySQL CASE Expressions Explained By Practical Examples
WebMar 27, 2024 · I have a SELECT query that returns 2 rows which have a rid (1 in both rows) and a path column which has binary value 0 or 1 I want to use a CASE statement such that it will SELECT one row from results of first query based on condition s1.pid < s2.pid THEN (SELECT S2.rid WHERE r.path = 0) ELSE (SELECT S2.rid WHERE r.path=1 ) Below code … WebThe CASE statement goes through conditions and return a value when the first condition is met (like an IF-THEN-ELSE statement). So, once a condition is true, it will stop reading and … Web定义和用法. CASE 语句遍历条件并在满足第一个条件时返回一个值(如 IF-THEN-ELSE 语句)。. 因此,一旦条件为真,它将停止读取并返回结果。. 如果没有条件为真,它将返回 ELSE 子句中的值。. 如果没有ELSE部分且没有条件为真,则返回NULL。. dna motoring exhaust for camry 2009