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package main
import (
"database/sql"
"flag"
"fmt"
"log"
"github.com/denisenkom/go-mssqldb"
)
var (
debug = flag.Bool("debug", true, "enable debugging")
password = flag.String("password", "osmtest", "the database password")
port *int = flag.Int("port", 1433, "the database port")
server = flag.String("server", "localhost", "the database server")
user = flag.String("user", "osmtest", "the database user")
database = flag.String("database", "bulktest", "the database name")
)
/*
CREATE TABLE test_table(
[id] [int] IDENTITY(1,1) NOT NULL,
[test_nvarchar] [nvarchar](50) NULL,
[test_varchar] [varchar](50) NULL,
[test_float] [float] NULL,
[test_datetime2_3] [datetime2](3) NULL,
[test_bitn] [bit] NULL,
[test_bigint] [bigint] NOT NULL,
[test_geom] [geometry] NULL,
CONSTRAINT [PK_table_test_id] PRIMARY KEY CLUSTERED
(
[id] ASC
) ON [PRIMARY]);
*/
func main() {
flag.Parse()
if *debug {
fmt.Printf(" password:%s\n", *password)
fmt.Printf(" port:%d\n", *port)
fmt.Printf(" server:%s\n", *server)
fmt.Printf(" user:%s\n", *user)
fmt.Printf(" database:%s\n", *database)
}
connString := fmt.Sprintf("server=%s;user id=%s;password=%s;port=%d;database=%s", *server, *user, *password, *port, *database)
if *debug {
fmt.Printf("connString:%s\n", connString)
}
conn, err := sql.Open("mssql", connString)
if err != nil {
log.Fatal("Open connection failed:", err.Error())
}
defer conn.Close()
txn, err := conn.Begin()
if err != nil {
log.Fatal(err)
}
stmt, err := txn.Prepare(mssql.CopyIn("test_table", mssql.MssqlBulkOptions{}, "test_varchar", "test_nvarchar", "test_float", "test_bigint"))
if err != nil {
log.Fatal(err.Error())
}
for i := 0; i < 10; i++ {
_, err = stmt.Exec(generateString(0, 30), generateStringUnicode(0, 30), i, i)
if err != nil {
log.Fatal(err.Error())
}
}
result, err := stmt.Exec()
if err != nil {
log.Fatal(err)
}
err = stmt.Close()
if err != nil {
log.Fatal(err)
}
err = txn.Commit()
if err != nil {
log.Fatal(err)
}
rowCount, _ := result.RowsAffected()
log.Printf("%d row copied\n", rowCount)
log.Printf("bye\n")
}
func generateString(x int, n int) string {
letters := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
b := make([]byte, n)
for i := range b {
b[i] = letters[i%len(letters)]
}
return string(b)
}
func generateStringUnicode(x int, n int) string {
letters := "ab©💾é?ghïjklmnopqЯ☀tuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
b := make([]byte, n)
for i := range b {
b[i] = letters[i%len(letters)]
}
return string(b)
}
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