SQL数据库的相关内容

文章 2023-04-10 来自：开发者社区

【SQL Server】数据库开发指南（一）数据库设计

@[toc]一、数据库设计的必要性在实际的软件项目中，如果系统中需要存储的数据量比较大，需要设计的表比较多，表与表之间的关系比较复杂，那我们就需要进行规范的数据库设置。如果不经过数据库的设计，我们构建的数据库不合理、不恰当，那么数据库的维护、运行效率会有很大的问题。这将直接影响到项目的运行性和可靠性。二、什么是数据库设计数据库设计是指在建立数据库之前，通过分析和规划，确定数据模型、数据结构、数据....

问答 2023-03-30 来自：开发者社区

SPACE-T模型在生成SQL的过程中会去考虑数据库中具体内容吗？也就是rows？

问答 2023-03-29 来自：开发者社区

请问，Flink SQL Connector JDBC有没有SQL Server 2012数据库的

请问，Flink SQL Connector JDBC除了有mysql-connector-java-5.1.37-bin.jar 驱动，有没有SQL Server 2012数据库的JDBC驱动？

问答 2023-03-29 来自：开发者社区

DMP数据库主账号没有执行sql语句权限

[语句1]: SET @@global.sql_mode="" Access denied; you need (at least one of) the SUPER or SYSTEM_VARIABLES_ADMIN privilege(s) for this operation 当前数据库账号无权限执行该SQL。一般为数据库账号权限不足，请检查您的权限后更换账号，或对账号赋权后重试执行。 ....

问答 2023-03-23 来自：开发者社区

请教大家个问题:pg数据库突发性能衰减，每个sql的执行时间都为正常情况的数倍，每个pg查询进程的c

请教大家个问题:pg数据库突发性能衰减，每个sql的执行时间都为正常情况的数倍，每个pg查询进程的cpu都在95%以上，服务器cpu被耗尽，pg_stat_activity里没看到等待事件，pg_lock里也没看到锁竞争，通过strace查看一个查询进程的系统调用，发现一直在执行select，大家有什么排查思路吗

问答 2023-03-21 来自：开发者社区

OceanBase查询某个数据库占用空间有SQL么？

问答 2023-03-21 来自：开发者社区

在阿里云adb数据库执行sql报错集群内存溢出,我这跑了4个月都没问题,昨天突然报错开始，为什么？

在阿里云adb数据库执行sql报错集群内存溢出,但是我这边跑了4个月都没有问题,昨天突然报错开始，是怎么回事？

问答 2023-03-21 来自：开发者社区

请问，Flink CDC将SQL Server 2012数据库一亿数据写入Hudi，要多少配置？

之前我花了不少时间配置好环境顺利插入百万条数据，然后尝试上亿条数据的操作，一直不成功。请问一下，Flink CDC将SQL Server 2012数据库的一亿条数据表写入Hudi表，需要服务器什么物理配置，这是我现在的内存等配置

问答 2023-03-21 来自：开发者社区

请问在flink sql，cdc 监控mysql 可以监控一个数据库吗？

问答 2023-03-15 来自：开发者社区

安全协同管理下的数据库,给某个账号分配了查询和变更的权限,在DMS的SQL窗口中执行update,提

安全协同管理下的数据库,给某个账号分配了查询和变更的权限,在DMS的SQL窗口中执行update,提示必须走工单,这个是对的,但是同样的账号,通过安全代理访问,就可以直接执行update,这样正常吗?

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