XML函数
本节中描述的函数以及类函数的表达式都在类型 xml 的值上操作。用于在值和类型 xml 之间转换的类函数的表达式 xmlparse 和 xmlserialize 记录在这里，而不是在本节中。使用大部分这些函数要求本数据库使用了 configure-with-libxml 进行...
CREATE TRIGGER
与此相反，一个被标记为 FOR EACH STATEMENT 的触发器只会为任何给定的操作执行一次，不管该操作修改多少行（特别地，一个修改零行的操作将仍会导致任何可用的 FOR EACH STATEMENT 触发器被执行）被指定为要触发 INSTEAD OF 触发器事件的...
概述
MaxCompute Graph是一套面向迭代的图计算...step+){ for each aggr in aggregators { aggr.createInitialValue();} for each v in vertices { v.compute();} }/4.cleanup for each v in vertices { v.cleanup();} WorkerComputer.cleanup();
创建触发器
语法 定义新触发器 CREATE TRIGGER 概要 CREATE[OR REPLACE]TRIGGER name { BEFORE|AFTER|INSTEAD OF } { INSERT|UPDATE|DELETE }[OR { INSERT|UPDATE|DELETE }][,.]ON table[REFERENCING { OLD AS old|NEW AS new }.][FOR EACH ROW][WHEN ...
CREATE TRIGGER
语法 CREATE[OR REPLACE]TRIGGER name { BEFORE|AFTER|INSTEAD OF } { INSERT|UPDATE|DELETE }[OR { INSERT|UPDATE|DELETE }][,.]ON table[REFERENCING { OLD AS old|NEW AS new }.][FOR EACH ROW][WHEN condition][DECLARE[PRAGMA ...
BEFORE行级触发器
CREATE OR REPLACE TRIGGER emp_comm_trig BEFORE INSERT ON emp FOR EACH ROW BEGIN IF:NEW.deptno=30 THEN:NEW.comm:=:NEW.sal*.4;END IF;END;添加两个员工后的列表显示该触发器计算了他们的佣金，并将其作为新员工行的一部分插入。...
步骤三：实验2-根据车次查询城市天气
在 遍历（For Each）面板，单击 编辑代码，在 脚本 对话框中输入以下示例代码，完成后单击 确定。package bwifltobrjah62j1xw;import ...
线性回归
}@Override public void aggregate(GradientWritable gradient,Object value)throws IOException {/*perform on each vertex-each sample i：set theta(j)for each sample i*for each dimension*/double tmpVar=vecMul((Tuple)value,...
HBase HBCK2
1' under default namespace,and for all tables from namespace 'ns1':$HBCK2 extraRegionsInMeta default:table_1 ns1 Returns list of extra regions for each table passed as parameter,or for each table on namespaces specified as...
同步或迁移源库中的触发器
自动执行 DTS会拷贝源库触发器的代码，在触发器对象头部加入触发控制语句后写入目标库，示例代码如下所示：源库触发器：CREATE TRIGGER testref BEFORE INSERT ON test1 FOR EACH ROW BEGIN INSERT INTO test2 SET a2=NEW.a1;END;目标库...
Before Row-level触发器
使用示例如下：create trigger t before insert or update or delete on parted for each row execute function trigger_function();insert into parted values(1,1,'uno uno v1');NOTICE:parted_1:BEFORE ROW INSERT update parted set a=...
触发器函数
CREATE TRIGGER emp_stamp BEFORE INSERT OR UPDATE ON emp FOR EACH ROW BEGIN-检查给出了 empname 以及 salary IF NEW.empname IS NULL THEN RAISE EXCEPTION 'empname cannot be null';END IF;IF NEW.salary IS NULL THEN RAISE ...
Pig开发手册
For each group,identify the hour in which this n-gram is used with a particularly high frequency.-Call the ScoreGenerator UDF to calculate a"popularity"score for the n-gram.uniq_frequency2=FOREACH uniq_frequency1 GENERATE ...
Pig作业配置
For each group,identify the hour in which this n-gram is used with a particularly high frequency.-Call the ScoreGenerator UDF to calculate a"popularity"score for the n-gram.uniq_frequency2=FOREACH uniq_frequency1 GENERATE ...
点表-轨迹表数据同步
用户业务中，通常是以轨迹点的形式写入，而分析时却会分析整条轨迹，因此，需要将轨迹点聚合成为...创建同步Trigger CREATE TRIGGER point_trigger AFTER INSERT ON sample_points FOR EACH ROW EXECUTE PROCEDURE trajectory_sync_point();
点表-轨迹表数据同步
用户业务中，通常是以轨迹点的形式写入，而分析时却会分析整条轨迹，因此，需要将轨迹点聚合成为...创建同步Trigger CREATE TRIGGER point_trigger AFTER INSERT ON sample_points FOR EACH ROW EXECUTE PROCEDURE trajectory_sync_point();
点表-轨迹表数据同步
用户业务中，通常是以轨迹点的形式写入，而分析时却会分析整条轨迹，因此，需要将轨迹点聚合成为...创建同步Trigger CREATE TRIGGER point_trigger AFTER INSERT ON sample_points FOR EACH ROW EXECUTE PROCEDURE trajectory_sync_point();
触发器函数
suppress_redundant_updates_trigger 函数可以像这样添加到表中：CREATE TRIGGER z_min_update BEFORE UPDATE ON tablename FOR EACH ROW EXECUTE FUNCTION suppress_redundant_updates_trigger();在大多数情况下，你需要为每一行最后触发...
字符串函数
函数名 描述 ASCII()Return numeric value of left-most character BIN()Return a string containing binary representation of a number BIT_LENGTH()Return length of argument in bits CHAR()Return the character for each integer ...
ListLogstashPlugins
调用ListLogstashPlugins，获取所有...filter-clone","state":"INSTALLED","source":"SYSTEM","description":"The clone filter is for duplicating events.A clone will be created for each type in the clone list.","specificationUrl":...
三角形计数
I.Each vertex sends a message with its ID to all its outgoing*neighbors.*II.The incoming neighbors and outgoing neighbors are stored and*send to outgoing neighbors.*III.For each edge compute the intersection of the sets ...
alicloud_cs_kubernetes_clusters
Map of kubernetes cluster connection information.It contains several attributes to Block Connections.node_cidr_mask-The network mask used on pods for each node.log_config-A list of one element containing information about ...
alicloud_sae_applications
only the method of issuing commands in the container is supported.memory-The memory required for each instance,in MB,cannot be 0.One-to-one correspondence with CPU.min_ready_instances-The Minimum Available Instance.On the ...
alicloud_router_interface
Only one pair of connected router interfaces can exist between two routers.Up to 5 router interfaces can be created for each router and each account.->NOTE:The router interface is not connected when it is created.It can be...
ALIYUN:EDAS:K8sApplication
取值：FatJar WAR Image UseBodyEncoding Boolean 否 否 是否启用BodyEncoding for URL。取值：true false（默认值）JavaStartUpConfig Map 否 否 用于在Java应用启动时配置启动参数。置为""或者"{}"表示删除配置。更多信息，请参见 ...
DBMS_METADATA
create trigger trigger1 after insert on public.t for each row execute procedure print_insert();select dbms_metadata.get_ddl('trigger','trigger1','public');WARNING:No need to specify schema for trigger,ignore it.get_ddl-...
DBMS_METADATA
create trigger trigger1 after insert on public.t for each row execute procedure print_insert();select dbms_metadata.get_ddl('trigger','trigger1','public');WARNING:No need to specify schema for trigger,ignore it.get_ddl-...
ALIYUN:SAS:Instance
'2015-09-01' Parameters:AntiRansomware:Description:en:Security Center provides a comprehensive anti-ransomware solution to protect your business.We recommend that you configure a data protection capacity of 50GB for each ...
K-均值聚类
converge threshold for each center:0.05 converged=dist;} if(converged|context.getSuperstep()=context.getMaxIteration()-1){/converged or reach max iteration,output centers for(int i=0;i();i+){ context.write(((Tuple)value....
alicloud_log_alert
including 2,4,6,8,10 for Report,Low,Medium,High,Critical.eval_condition-(Required)Severity when this condition is met.condition-(Optional)Condition for each row.count_condition-(Optional)Count's condition for the rows met ...
alicloud_cs_kubernetes_node_pool
it is recommended that existing nodes be placed separately in a node pool for management.->NOTE:From version 1.149.0,support for specifying deploymentSet for node pools.->NOTE:From version 1.158.0,Support for specifying ...
for-each节点逻辑原理介绍
DataWorks为您提供遍历节点（for-each节点），您可以通过for-each节点来循环遍历赋值节点传递的结果集。同时您也可以重新编排for-each节点内部的业务流程。本文为您介绍for-each节点的组成与应用逻辑。使用说明 您可通过以下内容了解遍历...
配置for-each节点
DataWorks为您提供遍历节点（for-each节点），您可以通过for-each节点来循环遍历赋值节点传递的结果集。同时您也可以重新编排for-each节点内部的业务流程。本文以一个具体示例，通过for-each节点2次循环遍历赋值节点输出结果，并在每次循环...
高级应用：实现复杂作业逻辑
for-each节点 DataWorks的for-each节点主要用于有循环遍历的场景，且需要与 赋值节点 联合使用，将赋值节点作为for-each节点的上游节点，将赋值节点的输出结果赋值给for-each节点后，一次次循环来遍历赋值节点的输出结果。for-each节点的...
前言
aos_list_for_each_entry aos_list_for_each_entry_reverse aos_list_for_each_entry_safe aos_list_for_each_entry_safe_reverse 对于 1.0.0 系列SDK，除以下结构体和接口不兼容外，其余均兼容。oss_request_options_t oss_get_object_to_...
通过DataWorks操作Hologres的多个分区子表
当您需要对Hologres中分区父表的多个分区子表进行操作（例如执行INSERT、DELETE或UPDATE）时，可以通过DataWorks的for-each节点的循环遍历功能实现，简化复杂的循环处理逻辑，数据更新成功后即可在父表中查看所有分区数据。背景信息 ...
ValidateTemplate-验证将要创建资源栈的模板
app.app_group[*].server：app 模块未使用 count 和 for_each，app_group 模块使用了 count 或 for_each（app_group 模块是 app 模块的子模块），server 资源未使用 count 和 for_each，对应的 ResourcePath 为 app.app_group.server。...
alicloud_cs_cluster_credential
cs_managed_kubernetes_clusters""k8s"{ name_regex="my-cluster"enable_details=false } data"alicloud_cs_cluster_credential""auth"{ for_each=toset(data.alicloud_cs_managed_kubernetes_clusters.k8s.ids)cluster_id=each.key ...
DataWorks节点合集
例如：用于循环执行代码的do-while节点，与遍历、判断上游赋值结果的for-each节点、分支节点等。数据集成同步类节点 用于数据同步任务使用，数据集成类型节点介绍如下。数据集成节点 使用介绍 离线同步节点 用于离线（批量）数据周期性同步...
ALIYUN:SAG:App
5,10,and 15."},"DataPlan":{"Type":"Number","Description":"The quota of the traffic plan that the system allows each client account to use for free each month.Unit:GB.Set the value to 5.Note The system allows each client ...
- 产品推荐
- 这些文档可能帮助您