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main.go
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main.go
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package main
import (
"database/sql"
"fmt"
go_ora "github.com/sijms/go-ora/v2"
"os"
"time"
)
type test1 struct {
Id int64 `udt:"test_id"`
Name string `udt:"test_name"`
Data string `udt:"data"`
CreateAt time.Time `udt:"created_at"`
}
func createPackage(conn *sql.DB) error {
t := time.Now()
sqlText := `create or replace package UDT_ARRAY_PKG AS
-- type t_test1 is table of UDT_ARRAY_TABLE.DATA%type index by binary_integer;
type t_id is table of UDT_ARRAY_TABLE.ID%type index by binary_integer;
procedure test_get1(p_id t_id, p_test1 out test_type2);
procedure test_get2(p_test test_type2);
end UDT_ARRAY_PKG;`
_, err := conn.Exec(sqlText)
if err != nil {
return err
}
sqlText = `create or replace PACKAGE BODY UDT_ARRAY_PKG AS
procedure test_get1(p_id t_id, p_test1 out test_type2) as
temp t_id := p_id;
cursor tempCur is select id, DATA from UDT_ARRAY_TABLE
WHERE id in (select column_value from table(temp));
tempRow tempCur%rowtype;
idx number := 1;
BEGIN
p_test1 := test_type2();
for tempRow in tempCur loop
p_test1.extend;
p_test1(idx) := tempRow.DATA;
idx := idx + 1;
end loop;
END test_get1;
procedure test_get2(p_test test_type2) as
BEGIN
NULL;
END test_get2;
end UDT_ARRAY_PKG;`
_, err = conn.Exec(sqlText)
if err != nil {
return err
}
fmt.Println("finish create package: ", time.Now().Sub(t))
return nil
}
func dropPackage(conn *sql.DB) error {
t := time.Now()
_, err := conn.Exec(`drop package UDT_ARRAY_PKG`)
if err != nil {
return err
}
fmt.Println("Drop package: ", time.Now().Sub(t))
return nil
}
func queryRow(conn *sql.DB) error {
t := time.Now()
test := test1{}
err := conn.QueryRow(`SELECT DATA FROM UDT_ARRAY_TABLE WHERE ID=1`).Scan(&test)
if err != nil {
return err
}
fmt.Println("row: ", test)
fmt.Println("finish query row: ", time.Now().Sub(t))
return nil
}
func query(conn *sql.DB) error {
t := time.Now()
var data []test1
_, err := conn.Exec(`BEGIN UDT_ARRAY_PKG.TEST_GET1(:1, :2); END;`, []int{1, 3, 5, 7}, go_ora.Out{Dest: &data, Size: 5})
if err != nil {
return err
}
fmt.Println("result: ", data)
fmt.Println("finish query: ", time.Now().Sub(t))
return nil
}
func get2(conn *sql.DB) error {
t := time.Now()
var data = []test1{
{
Id: 1,
Name: "name_1",
Data: "data",
CreateAt: time.Now(),
},
{
Id: 2,
Name: "name_2",
Data: "data",
CreateAt: time.Now(),
},
{
Id: 3,
Name: "name_3",
Data: "data",
CreateAt: time.Now(),
},
{
Id: 3,
Name: "name_4",
Data: "data",
CreateAt: time.Now(),
},
{
Id: 4,
Name: "name5",
Data: "data5",
CreateAt: time.Now(),
},
}
_, err := conn.Exec(`BEGIN UDT_ARRAY_PKG.TEST_GET2(:1); END;`, data)
if err != nil {
return err
}
fmt.Println("finish get2: ", time.Now().Sub(t))
return nil
}
func insertData(conn *sql.DB) error {
t := time.Now()
sqlText := `INSERT INTO UDT_ARRAY_TABLE(ID, DATA) VALUES(:1, :2)`
stmt, err := conn.Prepare(sqlText)
if err != nil {
return err
}
//data := make([]test1, 0, 10)
//ids := make([]int, 0, 10)
for x := 0; x < 10; x++ {
_, err = stmt.Exec(x+1, test1{int64(x + 1),
fmt.Sprintf("name_%d", x+1),
"DATA",
time.Now()})
if err != nil {
return err
}
}
//_, err := conn.ExecContext(context.Background(), sqlText,
// []driver.NamedValue{
// driver.NamedValue{"id", 0, ids},
// driver.NamedValue{"data", 0, data},
// })
if err != nil {
return err
}
fmt.Println("finish insert: ", time.Now().Sub(t))
return nil
}
func createTable(conn *sql.DB) error {
t := time.Now()
sqlText := `CREATE TABLE UDT_ARRAY_TABLE
(
ID number(10, 0),
DATA TEST_TYPE1
)`
_, err := conn.Exec(sqlText)
if err != nil {
return err
}
fmt.Println("finish create table: ", time.Now().Sub(t))
return nil
}
func dropTable(conn *sql.DB) error {
t := time.Now()
_, err := conn.Exec(`DROP TABLE UDT_ARRAY_TABLE PURGE`)
if err != nil {
return err
}
fmt.Println("finish drop table: ", time.Now().Sub(t))
return nil
}
func createUDTArray(conn *sql.DB) error {
t := time.Now()
_, err := conn.Exec(`CREATE or REPLACE TYPE TEST_TYPE2 AS TABLE of TEST_TYPE1`)
if err != nil {
return err
}
fmt.Println("Finish create UDT Array: ", time.Now().Sub(t))
return nil
}
func dropUDTArray(conn *sql.DB) error {
t := time.Now()
_, err := conn.Exec("drop type TEST_TYPE2")
if err != nil {
return err
}
fmt.Println("Finish drop UDT Array: ", time.Now().Sub(t))
return nil
}
func createUDT(conn *sql.DB) error {
t := time.Now()
sqlText := `create or replace TYPE TEST_TYPE1 IS OBJECT
(
TEST_ID NUMBER(10, 0),
TEST_NAME VARCHAR2(10),
DATA CLOB,
CREATED_AT DATE
)`
_, err := conn.Exec(sqlText)
if err != nil {
return err
}
fmt.Println("Finish create UDT: ", time.Now().Sub(t))
return nil
}
func dropUDT(conn *sql.DB) error {
t := time.Now()
_, err := conn.Exec("drop type TEST_TYPE1")
if err != nil {
return err
}
fmt.Println("Finish drop UDT: ", time.Now().Sub(t))
return nil
}
func main() {
conn, err := sql.Open("oracle", os.Getenv("DSN"))
if err != nil {
fmt.Println("can't open connection: ", err)
return
}
defer func() {
err = conn.Close()
if err != nil {
fmt.Println("can't close connection: ", err)
}
}()
err = createUDT(conn)
if err != nil {
fmt.Println("can't create UDT: ", err)
return
}
defer func() {
err = dropUDT(conn)
if err != nil {
fmt.Println("can't drop UDT: ", err)
}
}()
err = createUDTArray(conn)
if err != nil {
fmt.Println("can't create UDT array: ", err)
return
}
defer func() {
err = dropUDTArray(conn)
if err != nil {
fmt.Println("can't drop UDT array: ", err)
}
}()
err = go_ora.RegisterType(conn, "TEST_TYPE1", "TEST_TYPE2", test1{})
if err != nil {
fmt.Println("can't register type: ", err)
return
}
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)
}
}()
//insert some data
err = insertData(conn)
if err != nil {
fmt.Println("can't insert data: ", err)
return
}
//create package
err = createPackage(conn)
if err != nil {
fmt.Println("can't create package: ", err)
return
}
defer func() {
err = dropPackage(conn)
if err != nil {
fmt.Println("can't drop package: ", err)
}
}()
err = query(conn)
if err != nil {
fmt.Println("can't query: ", err)
return
}
//err = queryRow(conn)
//if err != nil {
// fmt.Println("can't query row: ", err)
// return
//}
err = get2(conn)
if err != nil {
fmt.Println("can't get2: ", err)
return
}
}