MySQL IF THEN-ELSE
If a given search_condition evaluates to true, the corresponding THEN or ELSEIF clause statement_list executes. If no search_condition matches, the ELSE ... ,Definition and Usage. The CASE statement goes through conditions and return a value when the first condition is met (like an IF-THEN-ELSE statement).
| 相關軟體 Oracle Database Express (32-bit) 資訊 | |
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 MySQL IF THEN-ELSE 相關參考資料
How do write IF ELSE statement in a MySQL query - Stack ...
2012年1月7日 — You probably want to use a CASE expression. They look like this: SELECT col1, col2, (case when (action = 2 and state = 0) THEN 1 ELSE 0 ... https://stackoverflow.com MySQL 8.0 Reference Manual :: 13.6.5.2 IF Statement - MySQL
If a given search_condition evaluates to true, the corresponding THEN or ELSEIF clause statement_list executes. If no search_condition matches, the ELSE ... https://dev.mysql.com MySQL CASE Function - W3Schools
Definition and Usage. The CASE statement goes through conditions and return a value when the first condition is met (like an IF-THEN-ELSE statement). https://www.w3schools.com MySQL IF ELSEIF in select query - Stack Overflow
2012年12月15日 — You have what you have used in stored procedures like this for reference, but they are not intended to be used as you have now. You can use ... https://stackoverflow.com MySQL IF Statement - MySQL Tutorial
MySQL IF-THEN-ELSE statement. In case you want to execute other statements when the condition in the IF branch does not evaluate to TRUE , you ... https://www.mysqltutorial.org MySQL IF() function - w3resource
2020年2月26日 — MySQL IF() takes three expressions and if the first expression is true, not ... mysql> SELECT IF((SELECT CASE WHEN 1>0 THEN 'true' ELSE ... https://www.w3resource.com MySQL IFNULL 、 IF 與CASE 函數- Barry 隨手寫
2011年8月25日 — WHEN a THEN b. WHEN c THEN d. ELSE e. END. 若column等於a，則返回b 若column等於c，則返回d 否則返回e 另外，a與c可為運算式， ... https://www.barryblogs.com MySQL-IF-THEN-ELSE语句_wang704987562的博客-CSDN博客
2018年6月20日 — 定义IF-THEN-ELSE语句通常用在根据不同条件执行不同SQL的场景。语法IF condition1 THEN ...statements to execute when condition1 is TRUE ... https://blog.csdn.net MySQL: IF-THEN-ELSE Statement - TechOnTheNet
https://www.techonthenet.com MySQL：if语句、if...else语句、case语句，使用方法解析 ...
2017年7月20日 — 这篇文章主要就是讲MySQL中if语句和if...else...语句如何使用！ ... 当IF中条件search_condition成立时，执行THEN后的statement_list语句、. http://www.youhutong.com |