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commit 51194c1c11fcd76fad9ce975e11abbcd25351d76 Author: mzcshen <[email protected]> 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>
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