I want to create a database and a table in that database.

我想创建一个数据库并在该数据库中创建一个表。

I create a new database and then a new table "users".
But the error "relation already exists" appears.
Yes, I already have a table "users", but it exists in another database.
But I want this table in the newly created database.

我创建了一个新数据库，然后创建了一个新表“USERS”。但会出现错误“关系已存在”。是的，我已经有一个表“USERS”，但它存在于另一个数据库中。但我希望在新创建的数据库中使用该表。

  import pkg from 'pg'; // node-postgres

  const { Client } = pkg;
  const client = new Client({
    host: ***,
    user: ***,
    password: ***,
  });

  await client.connect();

  await client.query(`
    CREATE DATABASE book_review_app;
  `);

  await client.query(`
    CREATE TABLE USERS (
      id SERIAL PRIMARY KEY,
      name character varying NOT NULL,
      email character varying NOT NULL UNIQUE,
      password varchar NOT NULL
    );
  `);

Your client is still connected to the original *** database, not to the newly created one. You'll need to open a new connection (create a new client) to book_review_app.

您的客户端仍然连接到原来的*数据库，而不是新创建的数据库。您需要打开一个新的连接(创建一个新的客户端)到book_Review_app。