[tcapulusdb knowledge base] how webclient users read and modify data

【TcaplusDB The knowledge base 】WebClient How users read and modify data

adopt WebClient Users can go to OMS Page to read and modify data ,OMS The page displays the business data in a tree structure , So that users can easily operate complex structure data , Including updating and deleting .

entrance

oms Operational platform - Business data processing - see / modify   data

explain

1、 The query records are displayed in the table on the left , Non simple type   The node data of is displayed as  [ ... ]、{ ... }; Click on   A record in a table , The details of this record will be expanded on the right ;

2、 Data editor on the right , only  Tree  In mode , Editable data 、 And allow submission of modifications ;

3、 When modifying data on the right , The modified leaf node will   The highlighted   mark ;

4、Union Type must specify Selector,Array Type must specify ReferCount;

5、 This page currently only supports TDR Interface (SetData and GetData function ) Read and write operations , If the online data of the operation is business GameServer Adopt non TDR Interface written , That is not to use SetData Function write , Please do not use this page to read and write data for the time being ;

6、 If the binary Type of key Field , Be sure to set the corresponding refer Field , Otherwise, this page does not support querying or modifying this type of table ;

7、 Records greater than or equal to... Are not supported at present 1MB Data query based on

function

Traversal table

Do not fill in key Value , Just click " Inquire about " The default is before traversal 20 Data .

Appoint key Inquire about

Partial field query

To use this function, you need to build a local index in advance .

Full field query

Index query

To use this function, you need to build a global index in advance .

constraint

Only the following two index query types are supported ：

• Ordinary sql Inquire about , Support  =,!=,>,>=,<,<=, like, not like, betwwen, in, not in, and, or, limit offset  Etc . The query result in this way is one or more complete data .

• Aggregate query , Support  count, sum, max, min, avg  And so on . The query result in this way is one or more statistical results , Such as count The result or sum Result .

• limit It has to be with offset It can be used together and can only be used for ordinary sql Inquire about , Cannot be used for aggregate queries , And  limit + offset <= 10000, And  limit <= 3000.

• Not specified limit offset Default value limit=10, offset=0.

• In the query results count Indicates the number of data returned by the current query .
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TcaplusDB It's a distributed product of Tencent NoSQL database , The code for storage and scheduling is completely self-developed . With cache + Landing fusion architecture 、PB Levels of storage 、 Millisecond delay 、 Lossless horizontal expansion and complex data structure . At the same time, it has rich ecological environment 、 Easy migration 、 Extremely low operation and maintenance costs and five nine high availability features . Customer coverage game 、 Internet 、 government affairs 、 Finance 、 Manufacturing and the Internet of things .