由于 SET 语句导致 SQL 查询失败 [关闭]

Posted 2023-05-09

【中文标题】由于 SET 语句导致 SQL 查询失败 [关闭]

【英文标题】：SQL Query failing due SET Statement [closed]

【发布时间】：2021-07-14 06:20:17

【问题描述】：

这个查询有什么问题？

UPDATE
  reinigung
SET
  `val1` = '[["Datum","20.04.2021","Kalenderwoche",16,"","",""],["","Gerdorf","","Hartmannsdorf1","","Hartmannsdorf2",""],["Zeit","Kennz. Tank","Fahrer","Kennz. Tank","Fahrer","Kennz. Tank","Fahrer"],["00:00","","","","","",""],["01:00","","","","","",""],["02:00","","","","","",""],["03:00","","","","","",""],["04:00","","","","","",""],["05:00","","","","","",""],["06:00","","","","","",""],["07:00","","","","","",""],["08:00","","","","","",""],["09:00","","","","","",""],["10:00","","","","","",""],["11:00","","","","","",""],["12:00","","","","","",""],["13:00","","","","","",""],["14:00","","","","","",""],["15:00","","","ssssssss","","",""],["16:00","","","","","",""],["17:00","","","","","",""],["18:00","","","","","",""],["19:00","","","","","",""],["20:00","","","ss","","",""],["21:00","","","","","",""],["22:00","","","sssss","","",""],["23:00","","","","","",""]]',
SET
  `val3` = 'test',
SET
  `val6` = '[e-mail]',
SET
  `val7` = '2021-04-20 06:05:01'
WHERE
  `val2` = '2021-04-20'

【问题讨论】：

你确定那是 SQL Server 吗？在我看来更像 mysql。它给出了什么错误？

您的 SQL 语法有误；似乎错误就在附近：'SET val3 = 'test', SET val6 = '[e-mail]', SET 'val7' at line 5 ...我不明白为什么它失败了

Edit 它进入你的问题。并确认您使用的是哪个 RDBMS。

我不相信任何 SQL UPDATE 语句需要不止一次使用关键字 SET - 我建议查看官方文档。

你确定这是SQL Server 吗？对我来说，这看起来不像 SQL Server 声明，也许是 MariaDB 或 MySql 之前问过的。请更正数据库标签

【参考方案1】：

只使用一个set 并使用comma 作为分隔符来更新多个值。并且不需要用 ``

括起列名

UPDATE
  reinigung
SET
  val1 = '[["Datum","20.04.2021","Kalenderwoche",16,"","",""],["","Gerdorf","","Hartmannsdorf1","","Hartmannsdorf2",""],["Zeit","Kennz. Tank","Fahrer","Kennz. Tank","Fahrer","Kennz. Tank","Fahrer"],["00:00","","","","","",""],["01:00","","","","","",""],["02:00","","","","","",""],["03:00","","","","","",""],["04:00","","","","","",""],["05:00","","","","","",""],["06:00","","","","","",""],["07:00","","","","","",""],["08:00","","","","","",""],["09:00","","","","","",""],["10:00","","","","","",""],["11:00","","","","","",""],["12:00","","","","","",""],["13:00","","","","","",""],["14:00","","","","","",""],["15:00","","","ssssssss","","",""],["16:00","","","","","",""],["17:00","","","","","",""],["18:00","","","","","",""],["19:00","","","","","",""],["20:00","","","ss","","",""],["21:00","","","","","",""],["22:00","","","sssss","","",""],["23:00","","","","","",""]]',
,
  val3 = 'test',
,
  val6 = '[e-mail]',
,
  val7 = '2021-04-20 06:05:01'
WHERE
  val2 = '2021-04-20'

【讨论】：

非常感谢！我读了这么多，以至于我错过了那个简单的“一个”-单陈述事实。感谢您的快速帮助。

欢迎您:)