How to create a new MySQL database with go-sql-driver

Question

I\'m working on Golang script that automatically clone a database. I\'m using go-sql-driver but i can\'t find in the documentation a way to create a new database. Connection

Answer 1

If you want to create a new database if it does not exist, and use it directly in your program, be aware that database/sql maintains a connection pool.

Therefore the opened database connection, should preferably contain the database name. I've seen "Error 1046: No database selected" when database/sql opens a new connection after using db.Exec("USE "+name) manually.

func createAndOpen(name string) *sql.DB {

   db, err := sql.Open("mysql", "admin:admin@tcp(127.0.0.1:3306)/")
   if err != nil {
       panic(err)
   }
   defer db.Close()

   _,err = db.Exec("CREATE DATABASE IF NOT EXISTS "+name)
   if err != nil {
       panic(err)
   }
   db.Close()

   db, err = sql.Open("mysql", "admin:admin@tcp(127.0.0.1:3306)/" + name)
   if err != nil {
       panic(err)
   }
   defer db.Close()
   return db
}