[英]MySQLi query returns bool(false) even knowing the SQL is correct
The following query returns bool(false)
when dumping the query: 转储查询时,以下查询返回bool(false)
:
SELECT *
FROM `account`
LEFT OUTER JOIN `player` ON `account`.`uid` = `player`.`account_uid`
UNION
RIGHT OUTER JOIN `player` ON `account`.`uid` = `player`.`account_uid`
I know that if the query returns false there was an error with the SQL however I'm sure the syntax is correct, I even ran it successful in my console and on phpMyAdmins SQL tool. 我知道,如果查询返回false,则表示SQL错误,但是我确定语法正确,甚至在控制台和phpMyAdmins SQL工具上都成功运行了它。
If I run it without 如果我没有运行它
LEFT OUTER JOIN `player` ON `account`.`uid` = `player`.`account_uid`
UNION
RIGHT OUTER JOIN `player` ON `account`.`uid` = `player`.`account_uid`
all is working. 一切正常。
What is the problem with my query? 我的查询有什么问题?
Thanks in advance. 提前致谢。
I managed to fix it myself by adding another 我自己设法通过添加另一个来修复它
SELECT * FROM `account`
to the query. 查询。 The full query now looks like this: 现在,完整的查询如下所示:
SELECT *
FROM `account`
LEFT OUTER JOIN `player` ON `account`.`uid` = `player`.`account_uid`
UNION
SELECT *
FROM `account`
RIGHT OUTER JOIN `player` ON `account`.`uid` = `player`.`account_uid`
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