Installation and Use of Couchbase

Couchbase is an open source distributed multi model NoSQL database that provides key value storage, document database, and query services. This article will provide a detailed introduction to the installation process of Couchbase and demonstrate how to use Couchbase to create data tables and perform data insertion, modification, query, and deletion operations. 1. Install Couchbase a. Visit the Couchbase official website（ https://www.couchbase.com/ ）, and download the Couchbase installation package suitable for your operating system. b. Run the installation package and follow the instructions of the installation wizard to install it. Choose the installation type and path according to your needs. c. After installation is complete, open the Couchbase web console. By default, you can access the http://localhost:8091 Access the web console. 2. Create a data table (bucket) a. On the Couchbase web console, click on the "Add Bucket" button, enter the bucket name and access password, and select the appropriate storage quota. Click on the "Create Bucket" button to create the bucket. 3. Data insertion a. On the Couchbase web console, click on the "Documents" tab and select the desired bucket. b. Click on the "Create Document" button and enter the keys and values for the data. A key is a unique identifier of a document, and the value can be a JSON document or other format of data. c. Click on the 'Save Document' button to insert the data into the bucket. 4. Data modification a. On the Couchbase web console, click on the "Documents" tab and select the desired bucket. b. Find the document you want to modify and click on the "Edit" button next to the document. c. Make changes to the document and click on the 'Save Document' button to save the modifications. 5. Data Query a. On the Couchbase web console, click on the "Query" tab and select the desired bucket. b. Enter the query statement in the query editor, for example: SELECT * From ` bucket_ Name ` WHERE field_ Name='value'. c. Click on the 'Execute Query' button to execute the query and view the returned results. 6. Data deletion a. On the Couchbase web console, click on the "Documents" tab and select the desired bucket. b. Find the document you want to delete and click on the "Delete" button next to the document. Through the above steps, you can install the Couchbase database and use it to create data tables for data insertion, modification, query, and deletion operations. Please note that these operations can be performed from within the application by using the client SDK provided by Couchbase for greater automation and flexibility.