SELECT CASE pref_name WHEN '德岛' THEN '四国' WHEN '香川' THEN '四国' WHEN '爱媛' THEN '...
2) Case:a) If the value of the <search condition> of some <searched when clause> in a <c...
Transact SQL :: Case Statement In Update Clause Jun 4, 2015 I have used the below update query. However, its updating only the first value. Like its updating AB with volume when c.Type = ABC, similarly for CD. Its not updating based on the 2nd or...
The CASE statement goes through conditions and returns 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 return the result. If no conditions are true, it returns the value in the ELSE clause. If there is ...
CASE can be used in any statement or clause that allows a valid expression Only 10 levels of nesting are allowed in SQL Server Syntax example The syntax for the SELECT statement with a simple CASE expression is as follows: SELECT CASE expression WHEN condition1 THEN result1 WHEN condition2 TH...
CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ... ELSE result END 其中,condition1、condition2等是条件表达式,result1、result2等是对应条件的结果。根据条件的结果,返回对应的result。如果没有条件满足,则返回else后面的result。 使用Case语句在where clause中乘以Case语句可以实现更加灵活的条件...
在更新语句中使用'CASE WHEN': 代码语言:txt 复制 UPDATE table_name SET column_name = CASE WHEN condition1 THEN value1 WHEN condition2 THEN value2 ELSE valueN END WHERE condition; 'CASE WHEN'语法在Oracle中非常实用,可以根据不同的条件进行灵活的操作和计算。通过灵活运用,可以满足各种复杂的业...
eg: String statement2 = "select * from user " +"where case when 1=1 then 2=2 end"; parse this sql statement throws parserException: net.sf.jsqlparser.JSQLParserException at net.sf.jsqlparser.parser.CCJSqlParserManager.parse(CCJSqlParserManager.java:40) ...
SQL中的 CASE 类似编程语言里的 if-then-else 语句,用做逻辑判断。可以用于SELECT语句中,也可以用在WHERE,GROUP BY 和 ORDER BY 子句;可以单独使用,也可以和聚合函数结合使用。 语法如下: CASE WHEN condition1 THEN result1 [WHEN condition2 THEN result2] ...
How to use 'between' in CASE statement? Charmer SSChampion Points: 14903 More actions May 5, 2017 at 7:31 am #330212 Hi Friends, I am trying to wirte a filter condition in WHERE clauselike CASE WHEN GETDATE() = 'first of this month' THEN 'DATE column' between 'first day of ...