add example of Prepare()/QueryRow(). add db.Close(). close #7

example/main.go

@@ -15,6 +15,7 @@ func main() {
 		fmt.Println(err)
 		return
 	}
+	defer db.Close()
 
 	sqls := []string{
 		"create table foo (id integer not null primary key, name text)",
@@ -39,7 +40,6 @@ func main() {
 		return
 	}
 	defer stmt.Close()
-
 	for i := 0; i < 100; i++ {
 		_, err = stmt.Exec(i, fmt.Sprintf("こんにちわ世界%03d", i))
 		if err != nil {
@@ -55,11 +55,25 @@ func main() {
 		return
 	}
 	defer rows.Close()
-
 	for rows.Next() {
 		var id int
 		var name string
 		rows.Scan(&id, &name)
 		println(id, name)
 	}
+	rows.Close()
+
+	stmt, err = db.Prepare("select name from foo where id = ?")
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	defer stmt.Close()
+	var name string
+	err = stmt.QueryRow("3").Scan(&name)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	println(name)
 }