forked from sijms/go-ora
-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.go
200 lines (186 loc) · 4.2 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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
package main
import (
"database/sql"
"flag"
"fmt"
_ "github.com/vtov-kr/go-ora/v2"
"os"
"time"
)
// create sequence
func createSeq(conn *sql.DB) error {
sqlText := `CREATE SEQUENCE GOORA_TEMP_VISIT_SEQ
MINVALUE 1 MAXVALUE 999
INCREMENT BY 1
START WITH 1
NOCACHE NOCYCLE`
t := time.Now()
_, err := conn.Exec(sqlText)
if err != nil {
return err
}
fmt.Println("Finish create sequence: ", time.Now().Sub(t))
return nil
}
func createTable(conn *sql.DB) error {
t := time.Now()
sqlText := `CREATE TABLE GOORA_TEMP_VISIT(
VISIT_ID number(10) NOT NULL,
NAME VARCHAR(200),
VAL number(10,2),
VISIT_DATE date,
PRIMARY KEY(VISIT_ID)
)`
_, err := conn.Exec(sqlText)
if err != nil {
return err
}
fmt.Println("Finish create table GOORA_TEMP_VISIT :", time.Now().Sub(t))
return nil
}
func createTrigger(conn *sql.DB) error {
sqlText := `CREATE OR REPLACE TRIGGER GOORA_TEMP_VISIT_TRG
BEFORE INSERT ON GOORA_TEMP_VISIT
FOR EACH ROW
BEGIN
SELECT GOORA_TEMP_VISIT_SEQ.NEXTVAL INTO :NEW.VISIT_ID FROM DUAL;
END;`
t := time.Now()
_, err := conn.Exec(sqlText)
if err != nil {
return err
}
fmt.Println("Finish create trigger: ", time.Now().Sub(t))
return nil
}
func dropTable(conn *sql.DB) error {
t := time.Now()
_, err := conn.Exec("drop table GOORA_TEMP_VISIT purge")
if err != nil {
return err
}
fmt.Println("Finish drop table: ", time.Now().Sub(t))
return nil
}
func dropSeq(conn *sql.DB) error {
t := time.Now()
_, err := conn.Exec("drop sequence GOORA_TEMP_VISIT_SEQ")
if err != nil {
return err
}
fmt.Println("Finish drop sequence: ", time.Now().Sub(t))
return nil
}
func dropTrigger(conn *sql.DB) error {
t := time.Now()
_, err := conn.Exec("drop trigger GOORA_TEMP_VISIT_TRG")
if err != nil {
return err
}
fmt.Println("Finish drop trigger: ", time.Now().Sub(t))
return nil
}
func insertData(conn *sql.DB) error {
t := time.Now()
stmt, err := conn.Prepare(`INSERT INTO GOORA_TEMP_VISIT(NAME, VAL, VISIT_DATE)
VALUES(:1, :2, :3) RETURNING VISIT_ID INTO :4`)
if err != nil {
return err
}
defer func() {
_ = stmt.Close()
}()
nameText := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
val := 1.1
var id int64
for index := 0; index < 100; index++ {
_, err = stmt.Exec(nameText, val, time.Now(), sql.Out{Dest: &id})
if err != nil {
return err
}
fmt.Printf("Insert row# %d and returning id value = %d\n", index, id)
id = 3
}
fmt.Println("Finish insert data: ", time.Now().Sub(t))
return nil
}
func usage() {
fmt.Println()
fmt.Println("insert_return")
fmt.Println(" a complete code of insert row with returning new id in output parameter.")
fmt.Println()
fmt.Println("Usage:")
fmt.Println(` insert_return -server server_url`)
flag.PrintDefaults()
fmt.Println()
fmt.Println("Example:")
fmt.Println(` insert_return -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", server)
if err != nil {
fmt.Println("Can't open the driver: ", err)
return
}
defer func() {
err = conn.Close()
if err != nil {
fmt.Println("Can't close driver: ", err)
}
}()
err = conn.Ping()
if err != nil {
fmt.Println("Can't ping connection: ", err)
return
}
err = createSeq(conn)
if err != nil {
fmt.Println("Can't create sequence", err)
return
}
defer func() {
err = dropSeq(conn)
if err != nil {
fmt.Println("Can't drop sequence: ", err)
}
}()
err = createTable(conn)
if err != nil {
fmt.Println("Can't create table: ", err)
return
}
defer func() {
err = dropTable(conn)
if err != nil {
fmt.Println("Can't drop table: ", err)
}
}()
err = createTrigger(conn)
if err != nil {
fmt.Println("Can't create trigger", err)
return
}
defer func() {
err = dropTrigger(conn)
if err != nil {
fmt.Println("Can't drop tirgger", err)
}
}()
err = insertData(conn)
if err != nil {
fmt.Println("Can't insert data", err)
}
}