MySQL IF THEN-ELSE
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 ... ,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). ,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 ... ,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 ... ,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 ... ,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， ... ,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 ... , ,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、.
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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 |