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import ( "fmt" "gorm.io/driver/mysql" "gorm.io/gorm" ) type Product struct { gorm.Model Code string Price uint } func main() { fmt.Println("main ...") dsn := "act:Q***wsx@tcp(127.0.0.1:3306)/tbname1?charset=utf8mb4&parseTime=True&loc=Local" var db, err = gorm.Open(mysql.Open(dsn), &gorm.Config{}) if err != nil { panic("failed to connect database") } // Migrate the schema db.AutoMigrate(&Product{}) // Create db.Create(&Product{Code: "D4211", Price: 100}) // Read var product Product db.First(&product, 1) // find product with integer primary key db.First(&product, "code = ?", "D42") // find product with code D42 fmt.Println(product) // Update - update product's price to 200 db.Model(&product).Update("Price", 200) // Update - update multiple fields db.Model(&product).Updates(Product{Price: 200, Code: "F42"}) // non-zero fields db.Model(&product).Updates(map[string]interface{}{"Price": 200, "Code": "F42"}) // Delete - delete product db.Delete(&product, 1) fmt.Println("success ...") }