In the first example, we connect to the PostgreSQL database and return a simple SELECT query result. first.js const pg = require('pg'); const R = require('ramda'); const cs = 'postgres://postgres:s$cret@localhost:5432/ydb'; const client = new pg.Client(cs); client.connect(); ...
使用JavaScript的PostgreSQL驱动程序(如pg或pg-promise)执行UPDATE语句来将数组字段设置为null。以下是一个示例代码: 代码语言:txt 复制 const { Pool } = require('pg'); const pool = new Pool({ user: 'your_username', host: 'your_host', database: 'your_database', password: 'your_password', por...
()).strapi; client =newpg.Client(config);console.log("Connecting to PostgreSQL database...");awaitclient.connect();console.log("Connected to PostgreSQL database");returnawaitclient.query(transaction, args); }catch(err) { logger.error(`PostgreSQL database error:${err}`);throwerr; ...
To connect to another database, simply use:// connect Instant.addDatabase(name, cfg); // read const otherDb = Instant.database(name);Querying your databases directlyQuerying your database directly is easy. To run a standalone query;
const mysql = require('mysql'); // 创建数据库连接 const connection = mysql.createConnection({ host: 'localhost', user: 'your_username', password: 'your_password', database: 'your_database' }); connection.connect((err) => { if (err) throw err; console.log('Connected to the MySQL ...
// Connect to the database db.connect(DB_HOST); // Apollo Server setup const server = new ApolloServer({ typeDefs, resolvers }); // Apply the Apollo GraphQL middleware and set the path to /api server.applyMiddleware({ app, path: '/api' }); ...
mkdir ~/postgresql_data/ docker run --name postgresql \ -e POSTGRES_USER=postgres -e POSTGRES_PASSWORD=password \ -p 5432:5432 \ -v ~/postgresql_data/:/var/lib/postgresql/data -d sibedge/postgres-plv8 Connect to the database and enable the plv8 extension: psql -h 127.0.0.1 -U postg...
2. Connecting Drizzle to PostgreSQL: Import Drizzle and configure it to connect to your PostgreSQL database. // Import Drizzle and PostgreSQL client import { drizzle } from 'drizzle-orm'; import { Pool } from 'pg'; // Configure PostgreSQL client ...
const Request = require('tedious').Request; const config = { userName: 'your-username', password: 'your-password', server: 'path-to-server', options: { database: 'database-name', encrypt: true } }; const connection = new Connection(config); connection.on('connect', err => { err ...
postgresql语言环境(默认) 取消勾选使用Stack Builder 完成安装后window菜单会有pgAdminⅢ的数据库管理程序,打开后使用刚才的密码成功连接数据库 1.2.2、postgis安装 PostgreSQL安装完成后,安装postgis。 运行可安装文件 勾选Create spatial database(完成安装后自动创建空间数据库检验安装) 安装目标路径需要选择刚才postgresq...