You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@iotdb.apache.org by qi...@apache.org on 2020/07/14 04:54:40 UTC
[incubator-iotdb] 02/02: update the first section of Data Model and
Terminology
This is an automated email from the ASF dual-hosted git repository.
qiaojialin pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-iotdb.git
commit 51194c1c11fcd76fad9ce975e11abbcd25351d76
Author: mzcshen <ma...@mail.tsinghua.edu.cn>
AuthorDate: Tue Jul 14 09:56:08 2020 +0800
update the first section of Data Model and Terminology
---
docs/UserGuide/Concept/Data Model and Terminology.md | 4 ++--
docs/readme.docx | 0
docs/zh/UserGuide/Concept/Data Model and Terminology.md | 6 +++---
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/docs/UserGuide/Concept/Data Model and Terminology.md b/docs/UserGuide/Concept/Data Model and Terminology.md
index 79bf2b9..6c8168c 100644
--- a/docs/UserGuide/Concept/Data Model and Terminology.md
+++ b/docs/UserGuide/Concept/Data Model and Terminology.md
@@ -21,9 +21,9 @@
# Data Model and Terminology
-To make this manual more practical, we will use a specific scenario example to illustrate how to operate IoTDB databases at all stages of use. See [this page](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt) for a look. For convenience, we also provide you with a sample data file in real scenario to import into the IoTDB system for trial and operation.
+In this section, a power scenario is taken as an example to illustrate how to creat a correct data model in IoTDB. For convenience, a sample data file is attached for you to practise IoTDB.
-Download file: [IoTDB-SampleData.txt](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt).
+Download the attachment: [IoTDB-SampleData.txt](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt).
According to the data attribute layers described in [sample data](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt), we can express it as an attribute hierarchy structure based on the coverage of attributes and the subordinate relationship between them, as shown in Figure 2.1 below. Its hierarchical relationship is: power group layer - power plant layer - device layer - sensor layer. ROOT is the root node, and each node of sensor layer is called a leaf node. In [...]
diff --git a/docs/readme.docx b/docs/readme.docx
deleted file mode 100644
index e69de29..0000000
diff --git a/docs/zh/UserGuide/Concept/Data Model and Terminology.md b/docs/zh/UserGuide/Concept/Data Model and Terminology.md
index cb50df0..9e90a3a 100644
--- a/docs/zh/UserGuide/Concept/Data Model and Terminology.md
+++ b/docs/zh/UserGuide/Concept/Data Model and Terminology.md
@@ -21,11 +21,11 @@
# 数据模型与技术
-我们为您提供一份简化的[样例数据](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt)。
+本节，我们以电力场景为例，说明如何在IoTDB中创建一个正确的数据模型。附件是一个样例数据文件，方便您练习IoTDB。
-下载文件: [IoTDB-SampleData.txt](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt).
+附件下载: [IoTDB-SampleData.txt](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt)。
-根据本文描述的[数据](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt)属性层级，按照属性涵盖范围以及它们之间的从属关系，我们可将其表示为如下图2.1的属性层级组织结构，其层级关系为：集团层-电场层-设备层-传感器层。其中ROOT为根节点，传感器层的每一个节点称为叶子节点。在使用IoTDB的过程中，您可以直接将由ROOT节点到每一个叶子节点路径上的属性用“.”连接，将其作为一个IoTDB的时间序列的名称。图2.1中最左侧的路径可以生成一个名为`ROOT.ln.wf01.wt01.status`的时间序列。
+根据[数据](https://github.com/thulab/iotdb/files/4438687/OtherMaterial-Sample.Data.txt)的属性层级，属性涵盖范围以及数据之间的从属关系，我们可将其数据模型表示为如图2.1所示的属性层级组织结构，即电力集团层-电厂层-设备层-传感器层。其中ROOT为根节点，传感器层的每一个节点为叶子节点。IoTDB的语法规定，ROOT节点到叶子节点的路径以“.”连接，以此完整路径命名IoTDB中的一个时间序列。例如，图2.1最左侧路径对应的时间序列名称为`ROOT.ln.wf01.wt01.status`。
<center><img style="width:100%; max-width:800px; max-height:600px; margin-left:auto; margin-right:auto; display:block;" src="https://user-images.githubusercontent.com/13203019/51577327-7aa50780-1ef4-11e9-9d75-cadabb62444e.jpg"></center>