case_when case when then where Postgres - Case - When Doctrine - CASE WHEN CASE WHEN from嵌套CASE WHEN无子查询? Case when with else for每个'When‘条件 Mysql SELECT CASE WHEN然后返回字段 js的case when Case When SQL to LINQ 页面内容是否对你有帮助?
when后面如果是值,则是表示等于的意思,"="可以不用写,遇到满足条件的才返回,如果没有满足的条件则返回else里的结果,如果没有else则返回NULL。when后面如果是表达式,不管when的条件是否满足,都是返回else里的结果,如果没有else则返回NULL。 when后面要么是表达式,要么是值,不然报错。如果是“=‘101’“或者“>=100...
selectname,salary,casesalarywhen>=2000then'T1'when>=3000then'T2'when>=4000then'T3'when>=5000then'T4'else'T5'endassalary_levelfromstaff ;-- ERROR 1064 (42000): You have an error in your SQL syntax; 3. 使用 CASE [col_name] WHEN [e...
21 rows in set mysql> But the output is wrong because I need concat `myFlight`, '-', 'myFlightAreaName'. I add the CASE WHEN in my query but this not working because print `XY1Q-UO PS` and not `ZN PS-UO PS`. Why? Your help would be very appreciated. thanks for your time ...
(select identification = '1' f' at line 1 ; bad SQL grammar []; nested exception is java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '( case when '0' =='2' and...
### 基础概念 `CASE WHEN` 是 MySQL 中的条件表达式,用于根据条件返回不同的值。它类似于编程语言中的 `if-else` 语句,可以在 SQL 查询中实现复杂的逻辑判断。 ##...
Use CASE...WHEN... syntax to transform bonus types to bonus percentage. CASEfiledWHENvalue1THENselect_value1WHENvalue2THENselect_value2ELSEdefault_valueENDCASEWHENfiled==value1THENselect_value1WHENfiled==value2THENselect_value2ELSEdefault_valueEND ...
1. 本文为作者原创,如果您觉得本文对您有帮助,请随意打赏,您的支持将鼓励我继续创作。 参考资料: 1、Mysql if case总结 2、Leetcode swap salary 3、select case when if 的一些用法 4、IF Syntax
when time(request_time)< '10:15:00' && time(request_time) > '11:15:00' then set user_session_id =2; end case; end // Upon entering //, I encounter a 1064 error. Although I have referred to the MySQL documentation, I believe my case syntax is accurate. ...
Bug #81932CASE WHEN syntax not accepted Submitted:20 Jun 2016 11:46Modified:20 Jan 2017 21:05 Reporter:Lars KristensenEmail Updates: Status:ClosedImpact on me: None Category:MySQL WorkbenchSeverity:S2 (Serious) Version:6.3.7OS:Windows (10) ...