Update SQL Server driver library

vendor/github.com/denisenkom/go-mssqldb/examples/tsql/tsql.go

@@ -0,0 +1,119 @@
+package main
+
+import (
+	"bufio"
+	"database/sql"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"time"
+
+	_ "github.com/denisenkom/go-mssqldb"
+)
+
+func main() {
+	var (
+		userid   = flag.String("U", "", "login_id")
+		password = flag.String("P", "", "password")
+		server   = flag.String("S", "localhost", "server_name[\\instance_name]")
+		database = flag.String("d", "", "db_name")
+	)
+	flag.Parse()
+
+	dsn := "server=" + *server + ";user id=" + *userid + ";password=" + *password + ";database=" + *database
+	db, err := sql.Open("mssql", dsn)
+	if err != nil {
+		fmt.Println("Cannot connect: ", err.Error())
+		return
+	}
+	err = db.Ping()
+	if err != nil {
+		fmt.Println("Cannot connect: ", err.Error())
+		return
+	}
+	defer db.Close()
+	r := bufio.NewReader(os.Stdin)
+	for {
+		_, err = os.Stdout.Write([]byte("> "))
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+		cmd, err := r.ReadString('\n')
+		if err != nil {
+			if err == io.EOF {
+				fmt.Println()
+				return
+			}
+			fmt.Println(err)
+			return
+		}
+		err = exec(db, cmd)
+		if err != nil {
+			fmt.Println(err)
+		}
+	}
+}
+
+func exec(db *sql.DB, cmd string) error {
+	rows, err := db.Query(cmd)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+	cols, err := rows.Columns()
+	if err != nil {
+		return err
+	}
+	if cols == nil {
+		return nil
+	}
+	vals := make([]interface{}, len(cols))
+	for i := 0; i < len(cols); i++ {
+		vals[i] = new(interface{})
+		if i != 0 {
+			fmt.Print("\t")
+		}
+		fmt.Print(cols[i])
+	}
+	fmt.Println()
+	for rows.Next() {
+		err = rows.Scan(vals...)
+		if err != nil {
+			fmt.Println(err)
+			continue
+		}
+		for i := 0; i < len(vals); i++ {
+			if i != 0 {
+				fmt.Print("\t")
+			}
+			printValue(vals[i].(*interface{}))
+		}
+		fmt.Println()
+
+	}
+	if rows.Err() != nil {
+		return rows.Err()
+	}
+	return nil
+}
+
+func printValue(pval *interface{}) {
+	switch v := (*pval).(type) {
+	case nil:
+		fmt.Print("NULL")
+	case bool:
+		if v {
+			fmt.Print("1")
+		} else {
+			fmt.Print("0")
+		}
+	case []byte:
+		fmt.Print(string(v))
+	case time.Time:
+		fmt.Print(v.Format("2006-01-02 15:04:05.999"))
+	default:
+		fmt.Print(v)
+	}
+}