odps存储过程迁移专有云

Oracle存储过程迁移ODPS-03（专有云）：ODPS1.0支持exists语法

专有云目前还有不少ODPS1.0版本，主要是应对V3之前的平台版本。这个版本的ODPS不支持exists语法，如何换种写法实现。ODPS1.0 如何实现 exists 语法-oracle select col1,col2,col3,col4 from(select t1.col1,t1.col2,t2.col3,t2.col4 from ...

Oracle存储过程迁移ODPS-00（专有云）：Oracle-ODPS数据类型转换

ODPS数据类型：类型描述取值范围 Bigint 8字节有符号整型。请不要使用整型的最小值(-9223372036854775808)，这是系统保留值。9223372036854775807~9223372036854775807 String 字符串，支持UTF-8编码。其他编码的字符行为未定义。单个...

Oracle存储过程迁移ODPS-01（专有云）：支持DML(delete/update/merge)SQL

关系型数据库支持的 delete/update/merge SQL，在ODPS该如何写-上日全量表 table1(key1 string,key2 string,col1 string,col2 string);今日增量表 table2(key1 string,key2 string,col1 string,col2 string);今日增量表（删除）table3(key1...

Oracle存储过程迁移ODPS-02（专有云）：循环逻辑修改一例（构造代码表）

总有同学提问，说我原来在oracle的存储过程中的循环现在maxcompute支持了，我的程序怎么迁移。这个问题其实非常难以回答，一般来说99%的oracle的代码都可以通过maxcompute的SQL和函数来替代，这个也包括一般的循环语句要解的问题。下面这个...

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云原生大数据计算服务 MaxCompute

MaxCompute 是面向分析的企业级 SaaS 模式云数据仓库，以 Serverless 架构提供快速、全托管的在线数据仓库服务，消除了传统数据平台在资源扩展性和弹性方面的限制，最小化用户运维投入，使您可以经济并高效的分析处理海量数据。

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