-
Notifications
You must be signed in to change notification settings - Fork 0
/
dbbasic.go
108 lines (95 loc) · 1.98 KB
/
dbbasic.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
103
104
105
106
107
108
package main
import (
"database/sql"
_ "github.com/go-sql-driver/mysql"
)
//TODO
func addRecord(db *sql.DB, data map[string]string) error {
return nil
}
//TODO
func addMultipleRecord(db *sql.DB, dataList []map[string]string) error {
return nil
}
//TODO
func updateRecord(db *sql.DB, data map[string]string) error {
return nil
}
//TODO
func updateMultipleRecord(db *sql.DB, dataList []map[string]string) error {
return nil
}
func updateStatement(db *sql.DB, sql string) error {
_, errx := db.Exec(sql)
if errx != nil {
return errx
}
return nil
}
func selectStatement(db *sql.DB, sql string) ([]map[string]string, error) {
rows, err := db.Query(sql)
if err != nil {
return nil, err
}
columns, err := rows.Columns()
if err != nil {
return nil, err
}
count := len(columns)
values := make([]interface{}, count)
valuePtrs := make([]interface{}, count)
clist := []map[string]string{}
for rows.Next() {
for i, _ := range columns {
valuePtrs[i] = &values[i]
}
rows.Scan(valuePtrs...)
var mdata = make(map[string]string)
for i, col := range columns {
val := values[i]
b, _ := val.([]byte)
mdata[col] = string(b)
}
clist = append(clist, mdata)
}
return clist, nil
}
func selectSingleStatement(db *sql.DB, sql string) (map[string]string, error) {
rows, err := db.Query(sql)
if err != nil {
return nil, err
}
columns, err := rows.Columns()
if err != nil {
return nil, err
}
count := len(columns)
values := make([]interface{}, count)
valuePtrs := make([]interface{}, count)
var mdata = make(map[string]string)
for rows.Next() {
for i, _ := range columns {
valuePtrs[i] = &values[i]
}
rows.Scan(valuePtrs...)
for i, col := range columns {
val := values[i]
b, _ := val.([]byte)
mdata[col] = string(b)
}
break
}
return mdata, nil
}
func selectData(db *sql.DB, sql string) (string, error) {
data := ""
rows, err := db.Query(sql)
if err != nil {
return data, err
}
for rows.Next() {
rows.Scan(&data)
break
}
return data, nil
}