-
-
Notifications
You must be signed in to change notification settings - Fork 174
/
main.go
253 lines (245 loc) · 5.71 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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
package main
import (
"bytes"
"database/sql"
"fmt"
go_ora "github.com/sijms/go-ora/v2"
"os"
"strings"
"time"
)
func execCmd(db *sql.DB, stmts ...string) error {
for _, stmt := range stmts {
if _, err := db.Exec(stmt); err != nil {
if len(stmts) > 1 {
return fmt.Errorf("error: %v in execuation of stmt: %s", err, stmt)
} else {
return err
}
}
}
return nil
}
func createTable(db *sql.DB) error {
t := time.Now()
err := execCmd(db, `CREATE TABLE TTB_557 (
ID NUMBER(10),
DATA_BLOB BLOB,
DATA_CLOB CLOB,
DATA_NCLOB NCLOB,
LDATE DATE
) NOCOMPRESS`)
if err != nil {
return err
}
fmt.Println("finish create table: ", time.Now().Sub(t))
return nil
}
func dropTable(db *sql.DB) error {
t := time.Now()
err := execCmd(db, `DROP TABLE TTB_557 PURGE`)
if err != nil {
return err
}
fmt.Println("finish drop table: ", time.Now().Sub(t))
return nil
}
func raw(db *sql.DB, data []byte) error {
t := time.Now()
_, err := db.Exec(`INSERT INTO TTB_557(DATA_BLOB, ID, LDATE) VALUES(:1, :2, :3)`, data, 1, time.Now())
if err != nil {
return err
}
_, err = db.Exec(`INSERT INTO TTB_557(ID, DATA_BLOB, LDATE) VALUES(:1, :2, :3)`, 2, data, time.Now())
if err != nil {
return err
}
_, err = db.Exec(`INSERT INTO TTB_557(ID, LDATE, DATA_BLOB) VALUES(:1, :2, :3)`, 3, time.Now(), data)
if err != nil {
return err
}
rows, err := db.Query(`SELECT DATA_BLOB FROM TTB_557`)
if err != nil {
return err
}
defer func() {
err = rows.Close()
if err != nil {
fmt.Println("can't close rows: ", err)
}
}()
var output []byte
for rows.Next() {
err = rows.Scan(&output)
if err != nil {
return err
}
if len(output) != len(data) {
return fmt.Errorf("expected data size: %d and got: %d", len(data), len(output))
}
}
if rows.Err() != nil {
return rows.Err()
}
err = execCmd(db, "DELETE FROM TTB_557")
if err != nil {
return err
}
fmt.Printf("finish insert %d raw at (begin, middle and end) of sql: %v\n", len(data), time.Now().Sub(t))
return nil
}
func nvarchar(db *sql.DB, data string) error {
t := time.Now()
_, err := db.Exec(`INSERT INTO TTB_557(DATA_NCLOB, ID, LDATE) VALUES(:1, :2, :3)`, go_ora.NVarChar(data), 1, time.Now())
if err != nil {
return err
}
_, err = db.Exec(`INSERT INTO TTB_557(ID, DATA_NCLOB, LDATE) VALUES(:1, :2, :3)`, 2, go_ora.NVarChar(data), time.Now())
if err != nil {
return err
}
_, err = db.Exec(`INSERT INTO TTB_557(ID, LDATE, DATA_NCLOB) VALUES(:1, :2, :3)`, 3, time.Now(), go_ora.NVarChar(data))
if err != nil {
return err
}
rows, err := db.Query(`SELECT DATA_NCLOB FROM TTB_557`)
if err != nil {
return err
}
defer func() {
err = rows.Close()
if err != nil {
fmt.Println("can't close rows: ", err)
}
}()
var output string
for rows.Next() {
err = rows.Scan(&output)
if err != nil {
return err
}
if len(output) != len(data) {
return fmt.Errorf("expected data size: %d and got: %d", len(data), len(output))
}
}
if rows.Err() != nil {
return rows.Err()
}
err = execCmd(db, "DELETE FROM TTB_557")
if err != nil {
return err
}
fmt.Printf("finish insert %d nvarchar string at (begin, middle and end) of sql: %v\n", len(data), time.Now().Sub(t))
return nil
}
func varchar(db *sql.DB, data string) error {
t := time.Now()
_, err := db.Exec(`INSERT INTO TTB_557(DATA_CLOB, ID, LDATE) VALUES(:1, :2, :3)`, data, 1, time.Now())
if err != nil {
return err
}
_, err = db.Exec(`INSERT INTO TTB_557(ID, DATA_CLOB, LDATE) VALUES(:1, :2, :3)`, 2, data, time.Now())
if err != nil {
return err
}
_, err = db.Exec(`INSERT INTO TTB_557(ID, LDATE, DATA_CLOB) VALUES(:1, :2, :3)`, 3, time.Now(), data)
if err != nil {
return err
}
rows, err := db.Query(`SELECT DATA_CLOB FROM TTB_557`)
if err != nil {
return err
}
defer func() {
err = rows.Close()
if err != nil {
fmt.Println("can't close rows: ", err)
}
}()
var output string
for rows.Next() {
err = rows.Scan(&output)
if err != nil {
return err
}
if len(output) != len(data) {
return fmt.Errorf("expected data size: %d and got: %d", len(data), len(output))
}
}
if rows.Err() != nil {
return rows.Err()
}
err = execCmd(db, "DELETE FROM TTB_557")
if err != nil {
return err
}
fmt.Printf("finish insert %d varchar string at (begin, middle and end) of sql: %v\n", len(data), time.Now().Sub(t))
return nil
}
func main() {
config, err := go_ora.ParseConfig(os.Getenv("DSN"))
if err != nil {
fmt.Println("can't parse config: ", err)
return
}
go_ora.RegisterConnConfig(config)
db, err := sql.Open("oracle", "")
if err != nil {
fmt.Println("can't open db: ", err)
return
}
defer func() {
err = db.Close()
if err != nil {
fmt.Println("can't close db: ", err)
}
}()
err = createTable(db)
if err != nil {
fmt.Println("can't create table: ", err)
return
}
defer func() {
err = dropTable(db)
if err != nil {
fmt.Println("can't drop table: ", err)
return
}
}()
// insert short string
err = varchar(db, strings.Repeat("*", 10000))
if err != nil {
fmt.Println("varchar short insert: ", err)
return
}
// insert long string
err = varchar(db, strings.Repeat("*", 40000))
if err != nil {
fmt.Println("varchar long insert: ", err)
return
}
// insert short NVARCHAR
err = nvarchar(db, strings.Repeat("早上好", 2000))
if err != nil {
fmt.Println("nvarchar short insert: ", err)
return
}
// insert long NVARCHAR
err = nvarchar(db, strings.Repeat("早上好", 40000))
if err != nil {
fmt.Println("nvarchar long insert: ", err)
return
}
// insert short RAW
err = raw(db, bytes.Repeat([]byte{3}, 10000))
if err != nil {
fmt.Println("raw short insert: ", err)
return
}
// insert long RAW
err = raw(db, bytes.Repeat([]byte{3}, 40000))
if err != nil {
fmt.Println("raw long insert: ", err)
return
}
}