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
|
package main
import (
"database/sql"
"fmt"
_ "github.com/mattn/go-sqlite3"
"os"
)
func main() {
os.Remove("./foo.db")
db, err := sql.Open("sqlite3", "./foo.db")
if err != nil {
fmt.Println(err)
return
}
defer db.Close()
sqls := []string{
"create table foo (id integer not null primary key, name text)",
"delete from foo",
}
for _, sql := range sqls {
_, err = db.Exec(sql)
if err != nil {
fmt.Printf("%q: %s\n", err, sql)
return
}
}
tx, err := db.Begin()
if err != nil {
fmt.Println(err)
return
}
stmt, err := tx.Prepare("insert into foo(id, name) values(?, ?)")
if err != nil {
fmt.Println(err)
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 {
fmt.Println(err)
return
}
}
tx.Commit()
rows, err := db.Query("select id, name from foo")
if err != nil {
fmt.Println(err)
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)
}
|
