常用数据库开发工具与 oracle 可插拔数据数据库的连接

​ Oracle12C之后，oracle数据库的架构发生了很大的变化，多租户数据库（可插拔数据库、容器数据库）架构提高了系统资源的利用率，对数据库管理方式也发生了很大的变革，但初学者往往会遇到数据库的连接问题，下面就常用的数据库开发工具与orace可插拔数据库的连接进行探讨。

​ 服务器环境

1. 硬件 RAM:8G ，硬盘：100G，双核CPU
2. 系统软件 centOS7-X64 ,oracle19C
3. 环境变量 ORACLE_SID=ORCLCDB

一 sqlplus 命令行工具

1. 进入根容器，然后再切换到可插拔数据库

[oracle@orc19c admin]$ sqlplus / as sysdba
#显示当前容器的名字
SQL> show con_name;
CON_NAME
------------------------------
CDB$ROOT

#是所有可插完数据库
SQL> show pdbs;
    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 ORCLPDB1                       READ WRITE NO
#切换当前工作数据库
SQL> ALTER SESSION SET CONTAINER=ORCLPDB1;
Session altered.

SQL> show con_name;
CON_NAME
------------------------------
ORCLPDB1

2. 直接连接可插拔数据库

[oracle@orc19c ~]$ sqlplus sys/password@ORCLPDB1 as sysdba
#显示当前容器的名字
SQL> show con_name;
CON_NAME
------------------------------
ORCLPDB1

二 SQL_Developer

1. 连接根容器数据库
   

2. 连接可插拔数据库
   

三 PLSQL Developer

1. 首先在reference中对Oracle Home和OCI Library进行配置

Oracle  Home 
E:\Dev-Tools\PLSQL_Developer_15\instantclient_21_9

OCI  library 
E:\Dev-Tools\PLSQL_Developer_15\instantclient_21_9

2. 在oracle home目录下创建子文件夹network和admin

E:\Dev-Tools\PLSQL_Developer_15\instantclient_21_9\network\admin
#编写TNS 配置文件tnsnames.ora

ORCLCDB =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 10.31.100.107)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ORCLCDB)
    )
  )

ORCLPDB1 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 10.31.100.107)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orclpdb1)
    )
  )

3. 创建根容器数据库连接
   

4. 创建可插拔数据库连接
   

四 datagrip

1. 创建根容器数据库连接，注意连接类型的选择。
   
   

2. 创建可插拔数据库连接
   

3. 服务名称可以从如下途径获取

[oracle@orc19c admin]$ lsnrctl status
...
Services Summary...
Service "ORCLCDB" has 1 instance(s).
  Instance "ORCLCDB", status READY, has 1 handler(s) for this service...
Service "ORCLCDBXDB" has 1 instance(s).
  Instance "ORCLCDB", status READY, has 1 handler(s) for this service...
Service "f82f890e5c9d2a8fe0536b641f0affe1" has 1 instance(s).
  Instance "ORCLCDB", status READY, has 1 handler(s) for this service...
Service "orclpdb1" has 1 instance(s).
  Instance "ORCLCDB", status READY, has 1 handler(s) for this service...
The command completed successfully

五 Navicat

1. 创建根容器数据库连接
   

2. 创建可插拔数据库连接