啊哈c软件-啊哈c软件文档介绍内容-移动阿里云

Transitive predicate generation(enhanced condition...

see condition pushdown(HAVING to WHERE).Example 1-Create example table CREATE VIEW v1 AS SELECT c1,c2,MAX(c3)AS max_c3,AVG(c4)AS avg_c4 FROM t2 GROUP BY c1,c2 HAVING max_c3 10;EXPLAIN FORMAT=TREE SELECT*FROM v1,t1 WHERE v1...

通配符列

正确语法例如 SELECT pk,c1,c2,c21,c31 WHERE c21 10 AND c31 'c300'。DDL 表创建表tb，设置 pk 为主键列，并在 WITH 条件中指定通配符列 c2*和 c3*，类型分别为BIGINT和VARCHAR。CREATE TABLE tb(pk INTEGER,c1 VARCHAR,`c2*` BIGINT,`c3...

CHECK约束

CREATE TABLE 语句中添加 CHECK 约束，示例如下：CREATE TABLE t1(CHECK(c1 c2),-表级约束 c1 INT CHECK(c1 10),-列级约束 c2 INT CONSTRAINT c2_positive CHECK(c2 0),c3 INT CHECK(c3 100),CONSTRAINT c1_nonzero CHECK(c1 0),CHECK(c1 c...

保险反欺诈

v[C3679]]=[v[C4377],e[C437711279][C4377-insured_of_claim-11279],v[11279],e[C6759411279][C67594-insured_of_claim-11279],v[C67594]]=[v[C4377],e[C437711279][C4377-insured_of_claim-11279],v[11279],e[C6939511279][C69395-...

提交禁用软件使用申请

当企业管理员配置了违规软件及禁用策略后，企业员工登录 SASE App，会在安全页显示存在的违规软件，如果企业员工因为特殊原因需要继续使用该软件，可以提交违规软件申请。本文介绍企业员工如何提交违规软件申请。前提条件已安装 SASE 安全...

OSS SDK for C

This topic is written based on Object Storage Service(OSS)SDK for C 3.10.0.Compatibility Version compatibility of OSS SDK for C:For OSS SDK for C V3.X.X:compatible.For OSS SDK for C V2.X.X:Compatible with Windows....

Billing

purpose)polar.mysql.g1.tiny.c 1 core,1 GB 1.69 polar.mysql.g1.small.c 1 core,2 GB 2.77 polar.mysql.g2.small.c 2 cores,4 GB 34.62 polar.mysql.g4.medium.c 2 cores,8 GB 40 polar.mysql.g8.medium.c 2 cores,16 GB 67.69 polar....

查看已安装的集群软件

本文介绍如何通过弹性高性能计算控制台查看集群中已安装的软件，并获取它们的详细信息，包括软件名称、版本和状态等。前提条件集群状态为运行中。操作步骤登录弹性高性能计算控制台。在顶部菜单栏左上角处，选择地域。在左侧导航栏，...

集群可用软件列表

E-HPC提供了业界主流的科学计算应用、编译器运行时库、MPI通信库等软件，本文介绍E-HPC提供的常用软件，以及软件相关的应用场景等。E-HPC支持的软件本文列出支持通过控制台自动部署的软件，您也可以通过自定义镜像的方式自行部署其他需要...

分区类型

例如：c1 与c2的取值总是相同适合使用CO_HASH(c1,c2)c1与c2的后4位字符总是相同适合使用 CO_HASH(RIGHT(c1,4),RIGHT(c2,4))）类似联合索引的前缀关系。类似联合索引的前缀关系。前缀列等值查询分区裁剪及示例支持。例如：c1='x'：支持...

ST_ColorTable

entries":[{"value":0,"c1":0,"c2":0,"c3":0,"c4":255},{"value":1,"c1":0,"c2":0,"c3":85,"c4":255},{"value":2,"c1":0,"c2":0,"c3":170,"c4":255}]}' Three color components:'{"compsCount":3,"entries":[{"value":0,"c1":0,"c2":0,"c3...

ST_ColorTable

entries":[{"value":0,"c1":0,"c2":0,"c3":0,"c4":255},{"value":1,"c1":0,"c2":0,"c3":85,"c4":255},{"value":2,"c1":0,"c2":0,"c3":170,"c4":255}]}' Three color components:'{"compsCount":3,"entries":[{"value":0,"c1":0,"c2":0,"c3...

DuckDB分析只读实例规格表

16 GB 8000 myduckro.n8.large.1c 4核 32 GB 12000 myduckro.n2.xlarge.1c 8核 16 GB 8000 myduckro.n4.xlarge.1c 8核 32 GB 10000 myduckro.n8.xlarge.1c 8核 64 GB 16000 独享型 myduckro.x2.medium.1c 2核 4GB 4000 10000 125 myduckro....

产品计费

035 polar.mysql.g4.xlarge.c 8核32 GB 1,330 polar.mysql.g8.xlarge.c 8核64 GB 1,760 polar.mysql.g2.2xlarge.c 16核32 GB 2,070 polar.mysql.g4.2xlarge.c 16核64 GB 2,660 polar.mysql.g8.2xlarge.c 16核128 GB 3,520 X86（独享规格）...

软件安装

针对ECS环境搭建需求，为解决手动输入命令繁琐的问题，可在Workbench中使用AI Agent或OOS预设软件包自动部署Docker、MySQL等软件。适用范围 RAM用户使用此功能，需拥有通过Workbench连接ECS实例的权限。仅Workbench 2.0支持该功能。如何...

ST_ColorTable

描述颜色表的JSON格式：4分量：'{"compsCount":4,"entries":[{"value":0,"c1":0,"c2":0,"c3":0,"c4":255},{"value":1,"c1":0,"c2":0,"c3":85,"c4":255},{"value":2,"c1":0,"c2":0,"c3":170,"c4":255}]}' 3分量：'{"compsCount":3,"entries...

ST_ColorTable

entries":[{"value":0,"c1":0,"c2":0,"c3":0,"c4":255},{"value":1,"c1":0,"c2":0,"c3":85,"c4":255},{"value":2,"c1":0,"c2":0,"c3":170,"c4":255}]}' Three color components:'{"compsCount":3,"entries":[{"value":0,"c1":0,"c2":0,"c3...

SKEWJOIN HINT

(a.c0=1 and a.c1="2")and(a.c0=3 and a.c1="4")contain skewed key values.select/*+skewjoin(a(c0,c1)((1,"2"),(3,"4")))*/*from T0 a join T1 b on a.c0=b.c0 and a.c1=b.c1 and a.c2=b.c2;Note Method 3 is more efficient than Method...

ISV接口概述

ISV可以通过云市场来上架软件应用，接入无影应用中心进行售卖。接入时，您需要提供相关ISV接口，以便实现与无影云电脑的对接。调用说明无影云电脑与ISV对接时，无影应用中心需要调用ISV接口来获取软件License，为用户授权软件...

规格列表

32GB 5000 mysql.z2.xlarge.2c 8核 16GB 2500 mysql.z4.xlarge.2c 8核 32GB 5000 mysql.z8.xlarge.2c 8核 64GB 10000 mysql.z2.2xlarge.2c 16核 32GB 5000 mysql.z4.2xlarge.2c 16核 64GB 10000 mysql.z8.2xlarge.2c 16核 128GB 20000 ...

Group Aggregate

Incompatible:Change count(distinct c)to count(distinct avg(c)).SELECT a,SUM(b),MAX(c),SUM(DISTINCT b),COUNT(DISTINCT c)FROM(SELECT a,b,AVG(c)AS c from MyTable GROUP BY a,b)GROUP BY a;Add an aggregated field in a multi-...

计算节点计费规则

polar.pg.g2.large.c 4核8 GB 0.019度 polar.pg.g4.large.c 4核16 GB 0.0252度 polar.pg.g2.xlarge.c 8核16GB 0.04度 polar.pg.g4.xlarge.c 8核32 GB 0.0496度 polar.pg.g8.xlarge.c 8核64 GB 0.064度 polar.pg.g2.2xlarge.c 16核32 GB 0....

Top-N

select a,b,c from(select*,row_number()over(partition by a order by c)as rk from(select a,b,substring(c,1,5)as c from MyTable))where rk 3;修改order：asc-desc，属于不兼容变更。select a,b,c from(select*,row_number()over...

RDS PostgreSQL只读实例规格列表

10 GB~64000 GB pgro.x4.medium.1c 2核 8GB 800 10000 128 pgro.x8.medium.1c 2核 16GB 1600 10000 128 pgro.x2.large.1c 4核 8GB 800 20000 192 pgro.x4.large.1c 4核 16GB 1600 20000 192 pgro.x8.large.1c 4核 32GB 3200 20000 192 pgro...

查询软件著作权证书流程

APP软件著作权和普通软件著作权证书的查询流程一致，具体操作步骤见下文。1、点击打开中国版权中心官网，登录之前用于申请软件著作权的已实名认证账号 2、选择登记公告-软件公告会进入以下页面：3、填写软著证书上的登记号和著作权人名称...

Preface(C++ SDK)

This topic is written for OSS SDK for C++ V1.9.1.SDK source code For more information about the source code of OSS SDK for C++,visit GitHub.Examples OSS SDK for C++ provides a variety of sample code for your reference or ...

Over Aggregate

select a,b,c,max(c)over(partition by a order by ts),sum(b)over(partition by a order by ts)from(select a,b,substring(c,1,5)as c from MyTable);修改Over窗口相关属性（Partition By、Order By、Bound Definition），该修改属于不...

Use the TairVector vector engine to perform ...

b'168003114' 29534.0['Cc1cc(C)cc(N2CCN(CC(=O)NC3CCCC3)C(=O)C2=O)c1']b'168000210' 60222.0['COc1ccc(N2CCN(CC(=O)Nc3cc(C)cc(C)c3)C(=O)C2=O)cc1OC']b'168001000' 61123.0['COc1ccc(N2CCN(CC(=O)Nc3ccc(C)cc3)C(=O)C2=O)cc1OC']b'...

C/C++上传SDK

本文为您介绍了阿里云C/C++上传SDK在不同更新时间对应的更新功能。说明仅支持下载最新版上传SDK。2019-01-15 日期版本修改内容 2019-01-15 V1.0.0 可上传各种媒体文件到点播。如视频（含音频）、图片、辅助媒资（如水印与字幕文件）。...