GOLANG 在 UBUNTU 14.04 上使用 Oracle 数据库

?awsdb=
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.126)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = awsdb)
)
)


EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)

?2.1、增删改查

package main


import (
"database/sql"
"fmt"
_ "github.com/mattn/go-oci8"
"os"
)

func main() {

// 字符集

os.Setenv("NLS_LANG","AMERICAN_AMERICA.AL32UTF8")

// 注意连接字符串的写法
db,err := sql.Open("oci8","awsdb/awsdb@192.168.0.126:1521/awsdb")
if err != nil {
fmt.Println(err)
return
}
// 事务开启
myTx,err:=db.Begin()

myTx.Commit()

// 查询与结果遍历

rows,err := db.Query("select nodeid,nodename from AA_MT_TEST")
if err != nil {
fmt.Println(err)
return
}
for rows.Next() {
var f1 string
var f2 string
rows.Scan(&f1,&f2)
println(f1,f2) // 3.14 foo
}
rows.Close()

_,err = db.Exec("create table foo(bar varchar2(256))")
_,err = db.Exec("drop table foo")
if err != nil {
fmt.Println(err)
return
}
// 关闭数据库连接
db.Close()

}

2.2、执行了一个存储过程、使用结构保存结果

package main


import (
"database/sql"
_ "github.com/mattn/go-oci8"
"fmt"
"os"
"sync"
)


var (
db *sql.DB
mux sync.Mutex
)

// 多行字符串的定义
var userTableSql string = `
BEGIN
BEGIN
EXECUTE IMMEDIATE 'DROP TABLE user_profile';
EXCEPTION
WHEN OTHERS THEN
IF SQLCODE != -942 THEN
RAISE;
END IF;
END;
EXECUTE IMMEDIATE 'CREATE TABLE user_profile (id int PRIMARY KEY,name VARCHAR(20) NOT NULL,created VARCHAR(20) NOT NULL)';
END;
`

func init() {

// 锁

mux.Lock()
defer mux.Unlock()


os.Setenv("NLS_LANG","AMERICAN_AMERICA.ZHS16GBK")
// check
if db != nil {
return
}


// open
oracledb,"awsdb/awsdb@192.168.0.126:1521/awsdb") checkErr(err) // new db db = oracledb // create database table _,err = db.Exec(userTableSql) checkErr(err) } func checkErr(err error) { if err != nil { panic("oracle err:" + err.Error()) } return } func main() { // insert insertSql := `insert into user_profile(id,name,created) values(1,'viney','2013-03-06')` _,err := db.Exec(insertSql) checkErr(err) // update updateSql := `update user_profile set name='中国人' where id=1` _,err = db.Exec(updateSql) checkErr(err) // select querySql := `select * from user_profile where id=1` rows,err := db.Query(querySql) type user struct { id int // 这个地方改成string才不会报错,但是我创建数据库是int类型 name string created string } var u = &user{} for rows.Next() { err = rows.Scan( &u.id,&u.name,&u.created) checkErr(err) } rows.Close() fmt.Println(*u) // delete deleteSql := `delete from user_profile where id=1` _,err = db.Exec(deleteSql) checkErr(err) db.Close() } ?

?

（编辑：李大同）

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