阿里云
>
存储过程迁移专有云
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-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...
Oracle
存储过程迁移
ODPS-01(
专有云
):支持DML(delete/update/merge)SQL
2.merge(
有
del)insert overwrite table table1 select from(-先把上日存在,今日也存在的记录从上日表中排除,再把今日删除的记录排除。剩下的就是今日没有更新的记录 select t1.key1,t1.key2,t1.col1,t1.col2 from table1 t1 left outer...
1
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专有云云盾
专有云云盾是阿里专有云原生的一揽子安全产品,覆盖网络安全、主机安全、应用安全、数据安全、运维审计、运营管理等平台级和租户级安全,构建专有云纵深防御安全体系,全力保障您专有云业务的安全平稳运行,并满足各类合规要求。
产品文档
规则升级
在线咨询
文档与工具
开发指南
用户指南
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专有云云盾
专有云云盾是阿里专有云原生的一揽子安全产品,覆盖网络安全、主机安全、应用安全、数据安全、运维审计、运营管理等平台级和租户级安全,构建专有云纵深防御安全体系,全力保障您专有云业务的安全平稳运行,并满足各类合规要求。
产品文档
规则升级
在线咨询
文档与工具
开发指南
用户指南