golang
最后更新于：2022-04-02 03:58:40
[TOC]
## golang
```
package main
import (
"database/sql"
"fmt"
"log"
"os"
_ "github.com/VoltDB/voltdb-client-go/voltdbclient"
)
func main() {
// If using a version of VoltDB server prior to 5.2, then
// set the version of the wire protocol to 0. The default
// value 1, indicates a server version of 5.2 or later.
// voltdbclient.ProtocolVersion = 0
db, err := sql.Open("voltdb", "localhost:21212")
if err != nil {
log.Fatal(err)
}
defer db.Close()
err = db.Ping()
if err != nil {
log.Fatal(err)
}
rows, err := db.Query("HELLOWORLD.select", "French")
if err != nil {
log.Fatal(err)
}
printRows(rows)
// with prepared statement
stmt, err := db.Prepare("select * from HELLOWORLD where dialect = ?")
if err != nil {
log.Fatal(err)
}
rows, err = stmt.Query("French")
if err != nil {
log.Fatal(err)
}
printRows(rows)
}
func printRows(rows *sql.Rows) {
for rows.Next() {
var hello string
var world string
var dialect string
err := rows.Scan(&hello, &world, &dialect)
if err != nil {
fmt.Println(err)
break
}
fmt.Printf("SUCCESS: %s %s %s\n", hello, world, dialect)
}
}
```
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