logic series comparison

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Oracle Logic Structure Diagram-Tutorial

在Oracle数据库中，逻辑结构示意图展示了数据库的组成部分。以下是各部分的说明： Database Blocks：数据库块是数据库的基本存储单位，存储数据的基本单元。 Tablespace：表空间是数据库逻辑存储结构的集合，包含多个数据文件。 Next Extent 5 MB：扩展是表空间中数据文件的物理增长单位，当前为5MB。 Segment 20 MB：段是由一组连续的数据库块组成的逻辑存储单位，当前段大小为20MB。 Initial Extent 15 MB：初始扩展是表空间创建时的初始空间分配量，此处为15MB。

Oracle 0 2024-11-06

SAPNetweaver_vs_Oracle_Comparison

Oracle的资料，结论当然是Oracle胜出了。

Oracle 0 2024-11-03

Top NoSQL Time Series Databases Overview

Time Series Database (TSDB) is a database system specifically designed for efficiently storing, managing, and processing time series data. This type of data typically involves numerical values associated with specific timestamps, commonly found in monitoring, IoT, financial transactions, and operational analytics. This article explores several key NoSQL time series databases, including InfluxDB, ScyllaDB, CrateDB, and Riak TS, as well as Apache Druid, highlighting their characteristics and application scenarios. 1. InfluxDB InfluxDB, developed by InfluxData, is an open-source time series database designed for real-time analysis and big data. It features high write performance and low-latency query capabilities, supporting complex time series data queries. InfluxDB is particularly suited for handling data from sensors, logs, metrics, and is widely used in monitoring systems, IoT applications, and real-time analysis scenarios. 2. ScyllaDB ScyllaDB is a high-performance distributed database based on Apache Cassandra. It offers higher throughput and lower latency than native Cassandra. Its optimized time series data processing capabilities make it ideal for real-time applications such as monitoring and log analysis. ScyllaDB supports multi-data center deployments to ensure high availability and consistency of data. 3. CrateDB CrateDB is a column-oriented distributed SQL database that can handle large-scale time series data. It provides a SQL interface, making time series data operations more familiar to traditional database users. CrateDB is suitable for projects that require rapid analysis of large amounts of time series data and prefer using SQL for querying. 4. Riak TS Developed by Basho Technologies, Riak TS is a NoSQL solution focused on time series data. It inherits the core features of Riak, such as high availability and scalability. Riak TS is suitable for applications that need to store and retrieve time series data in a distributed environment, such as recording equipment status in the telecommunications or energy industries. 5. Apache Druid Although Druid is not a traditional NoSQL database, it is a columnar data store designed for real-time analytics. Druid is renowned for its excellent Online Analytical Processing (OLAP) performance and low-latency query capabilities, making it suitable for big data real-time analysis and business intelligence applications. These databases each have their strengths. InfluxDB and Druid excel in real-time analytics, ScyllaDB and CrateDB offer powerful distributed processing capabilities, while Riak TS specializes in distributed storage and retrieval. Developers should consider data scale, performance requirements, query complexity, SQL support, and team expertise when choosing a solution.

NoSQL 0 2024-10-30

Matlab Development Robot Target Tracking Control Using Fuzzy Logic

Matlab Development: Robot Target Tracking Control Using Fuzzy Logic. This project involves using fuzzy logic with MatlabhW2K16 to develop a two-degree-of-freedom robotic arm for precise target tracking using image processing techniques.

Matlab 2 2024-07-22