forked from sijms/go-ora
-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.go
102 lines (95 loc) · 2.16 KB
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
package main
import (
"database/sql"
"flag"
"fmt"
go_ora "github.com/sijms/go-ora/v2"
"os"
"time"
)
func usage() {
fmt.Println()
fmt.Println("inout")
fmt.Println(" a complete code of create proc, use inout parameters then drop proc.")
fmt.Println()
fmt.Println("Usage:")
fmt.Println(` inout -server server_url`)
flag.PrintDefaults()
fmt.Println()
fmt.Println("Example:")
fmt.Println(` inout -server "oracle://user:pass@server/service_name"`)
fmt.Println()
}
func main() {
var (
server string
)
flag.StringVar(&server, "server", "", "Server's URL, oracle://user:pass@server/service_name")
flag.Parse()
connStr := os.ExpandEnv(server)
if connStr == "" {
fmt.Println("Missing -server option")
usage()
os.Exit(1)
}
fmt.Println("Connection string: ", connStr)
conn, err := sql.Open("oracle", connStr)
if err != nil {
fmt.Println("Can't create connection: ", err)
return
}
defer func() {
err = conn.Close()
if err != nil {
fmt.Println("Can't close connection: ", err)
}
}()
err = createProc(conn)
if err != nil {
fmt.Println("Can't create proc: ", err)
return
}
defer func() {
err = dropProc(conn)
if err != nil {
fmt.Println("Can't drop proc: ", err)
}
}()
err = useProc(conn)
if err != nil {
fmt.Println("Can't use proc: ", err)
return
}
}
func createProc(conn *sql.DB) error {
t := time.Now()
sqlText := `CREATE PROCEDURE test_in_out_param (
io_param IN OUT NVARCHAR2
) AS
BEGIN
IF io_param IS NULL THEN
io_param := 'changed by procedure because it was empty';
ELSE
io_param := io_param || ' ' || io_param;
END IF;
END;`
err := execSql(conn, sqlText)
fmt.Println("finish create proc: ", time.Now().Sub(t))
return err
}
func execSql(conn *sql.DB, sqlText string) error {
_, err := conn.Exec(sqlText)
return err
}
func dropProc(conn *sql.DB) error {
t := time.Now()
err := execSql(conn, "DROP PROCEDURE test_in_out_param")
fmt.Println("finish drop proc: ", time.Now().Sub(t))
return err
}
func useProc(conn *sql.DB) error {
p := "hi github"
_, err := conn.Exec("BEGIN test_in_out_param(:p); END;", go_ora.Out{Dest: &p, Size: 100, In: true})
fmt.Println("finish use proc with result: ", p)
return err
}