1、OCI下载链接页面下载（instantclient-basic，instantclient-sdk）
http://www.oracle.com/technetwor ... t/index-097480.html
2、解压缩到同一个目录下，比如：instantclient_12_1
3、root权限移动文件夹到目录 /usr/lib 下
2、root权限执行以下命令
## 其实直接cp拷贝过去也是一样的
ln /usr/lib/instantclient_12_1/libclntsh.so.12.1 /usr/lib/libclntsh.so
ln /usr/lib/instantclient_12_1/libocci.so.12.1 /usr/lib/libocci.so
ln /usr/lib/instantclient_12_1/libociei.so /usr/lib/libociei.so
ln /usr/lib/instantclient_12_1/libnnz12.so /usr/lib/libnnz12.so
## 以下两条是为了运行sqlplus命令
ln /usr/lib/instantclient_12_1/libsqlplusic.so /usr/lib/libsqlplusic.so
ln /usr/lib/instantclient_12_1/libsqlplus.so /usr/lib/libsqlplus.so
## 把 OCI路径加入系统加载动态库的路径中，并重新加载一次
echo /opt/oracle/instantclient >> /etc/ld.so.conf
ldconfig
3、安装pkg-config
4、在 /usr/lib/pkgconfig 目录下创建文件 oci8.pc，内容如下：
prefix=
// 路径改为/usr/lib/instantclient_12_1
libdir=${prefix}
includedir=${prefix}/sdk/include/
Name: OCI
Description: Oracle database engine
Version: 12.1
// 版本改为实际的版本号
Libs: -L${libdir} -lclntsh
Libs.private:
Cflags: -I${includedir}
5、直接运行步骤6会报libaio不存在的错误，安装libaio库
sudo apt-get install libaio1
6、安装go-oci8
go get github.com/mattn/go-oci8
7、.bashrc 文件中添加系统变量
# OCI安装目录
export ORACLE_HOME=/usr/lib/instantclient_12_1
# tnsnames.ora 文件地址
export TNS_ADMIN=$ORACLE_HOME/network/admin
# OCI安装目录加入动态库加载路径
export LD_LIBRARY_PATH=$ORACLE_HOME
# oci8.pc文件所在路径
export PKG_CONFIG_PATH=/usr/lib/pkgconfig
8、 tnsnames.ora 文件的内容
|
CODE:
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) ) ) |
二、使用github.com/mattn/go-oci8操作Oracle数据库
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() } |
