SQL如何处理的相关内容

问答 2021-12-02 来自：开发者社区

flink sql如何处理脏数据？

业务上游数据源发出来的数据有可能会有脏数据导致数据无法解析成源表的结构，如kafka json topic映射成源表。请问这种情况下flink sql要如何处理? 期望的是将脏数据发到一个专门的topic，是不是要自己写个connector? 标准kafka connector支持这种需求么？*来自志愿者整理的flink邮件归档

问答 2021-10-28 来自：开发者社区

跟踪业务执行日志时发现一SQL执行异常报错：ORA-0001 违反了唯一约束，该如何处理呢？

跟踪业务执行日志时发现一SQL执行异常报错：ORA-0001 违反了唯一约束，该如何处理呢？ ORA-00001: unique constraint(SQL_IMGMWWSYJIADSBASGSEZBXHAN.PK_USER_ID) violated ORA-06512: at "SYS.DBMS_SQL", line 1707

问答 2021-10-28 来自：开发者社区

业务代码中有一条关联表更新的SQL语句，执行时异常报错：SQL 命令未正确结束，该如何处理？

业务代码中有一条关联表更新的SQL语句，执行时异常报错：SQL 命令未正确结束，该如何处理？ SQL Error: ORA-00933: SQL command not properly ended

问答 2021-10-28 来自：开发者社区

公司一老项目业务人员反应系统无法登录，发现系统SQL登录异常的报错信息，该如何处理呢？

公司一老项目用到了Sysbase数据库，业务人员反应系统无法登录，发现系统SQL登录异常的报错信息，该如何处理呢？

问答 2021-10-14 来自：开发者社区

执行SQL查询到结果集后需要将时间戳值从一个时区转换为其它时区，如何处理？

问答 2021-10-14 来自：开发者社区

有一条update SQL执行了很长时间一直未完成，且无法确定最终的执行状态，如何处理？会有什么影响

有一条update SQL执行了很长时间一直未完成，且无法确定最终的执行状态，如何处理？会有什么影响？

问答 2020-06-03 来自：开发者社区

哪位大佬知道，SQL水印时区问题怎么解决，还有proctime相差8个小时如何处理 #Flink

文章 2020-04-22 来自：开发者社区

MySQL实战干货 | 如何处理由时区设置引发的 SQL 执行“卡顿”？

作者：田杰查询执行时间长引发应用感知 “卡顿” 的场景在数据库的日常支持和使用中并不少见，但由于时区设置引发的 SQL 执行“卡顿”仍然是一个有趣的现象，之前没有具体关注过。这次客户的细致与坚持让我们找到了问题的源头。 1. 名词解释序列号名词说明 1 CPU 使用率非空闲的 CPU 时间占比。 2 User CPU 使用率用户空间（user-space）应用代码消耗的 ...

问答 2019-11-21 来自：开发者社区

Flink SQL在使用Groupby时出现热点数据，如何处理？

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