使用Golang对Redshift数据库进行CRUD操作

Question

Could you please give me some explanations and some code examples on how it would be done (ex: creating tables and inserting data) ? Which library would you advise me to use ?

Thanks !

Answer 1

• Please note the side-effect import of github.com/lib/pq
• After this queries can be run by db.Query() or db.Exec()
• https://golang.org/pkg/database/sql/#example_DB_Query

• https://golang.org/pkg/database/sql/#pkg-examples

  import (
      _ "github.com/lib/pq"
      "database/sql"
      "fmt"
  )
  
  func MakeRedshfitConnection(username, password, host, port, dbName string) (*sql.DB, error) {
  
      url := fmt.Sprintf("sslmode=require user=%v password=%v host=%v port=%v dbname=%v",
          username,
          password,
          host,
          port,
          dbName)
  
      var err error
      var db *sql.DB
      if db, err = sql.Open("postgres", url); err != nil {
          return nil, fmt.Errorf("redshift connect error : (%v)"), err
      }
  
      if err = db.Ping(); err != nil {
          return nil, fmt.Errorf("redshift ping error : (%v)", err)
      }
      return db, nil
  }