Docker容器迁移Oracle到MySQL的实现方法

Docker network create --subnet=168.66.6.0/24 db-network
[root@docker ~]# docker network inspect db-network --查看网络信息

docker pull reGIStry.cn-shanghai.aliyuncs.com/techerwang/oracle:ora12c_12201

docker run -itd --name jemora1221 -h jemora1221
–net=db-network --ip 168.66.6.34
-p 1526:1521 -p 3396:3389
–privileged=true
registry.cn-shanghai.aliyuncs.com/techerwang/oracle:ora12c_12201 init

[root@jeames ~]# docker exec -it jemora1221 bash
[root@jemora1221 /]# su - oracle
[oracle@jemora1221 ~]$ sqlplus / as sysdba
SYS@jem> startup
SYS@jem> show pdbs
    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 JEMPDB                         MOUNTED
alter pluggable database JEMPDB open;
SYS@jem> select con_id,dbid,NAME,OPEN_MODE from v$pdbs;
SYS@jem> alter session set container=JEMPDB;
SYS@jem> create user jemmes identified by jemmes
SYS@jem> GRANT DBA to jemmes ;

[oracle@jemora1221 ~]$ cd $ORACLE_HOME/network
[oracle@jemora1221 network]$ cd admin

## 配置TNS，后续连接数据库
[oracle@jemora1221 admin]$ vi tnsnames.ora
JEMPDB =
 (DESCRIPTION =
 (ADDRESS = (PROTOCOL = tcp)(HOST = jemora1221)(PORT = 1521))
 (CONNECT_DATA =
 (SERVER = DEDICATED)
 (SERVICE_NAME = JEMPDB)
 )
 )
 
 ## 监听启动
lsnrctl start
lsnrctl status

docker run -d --name mysql8027 -h mysql8027 -p 3418:3306
–net=db-network --ip 168.66.6.35
-v /etc/mysql/mysql8027/conf:/etc/mysql/conf.d
-e MYSQL_ROOT_PASSWord=jeames -e TZ=Asia/Shanghai
mysql:8.0.27

[root@jeames ~]# docker ps --fORMat “table {<!--{cke_protected}{C}%3C!%2D%2D%20%2D%2D%3E-->{.ID}}\t{<!--{cke_protected}{C}%3C!%2D%2D%20%2D%2D%3E-->{.Names}}\t{<!--{cke_protected}{C}%3C!%2D%2D%20%2D%2D%3E-->{.Status}}”
CONTAINER ID NAMES STATUS
043D1652404d jemora1221 Up 7 minutes
dc2989508b67 mysql8027 Up 23 seconds
7e6a53d71017 Centos7.8 Up 20 minutes

cat > /etc/mysql/mysql8027/conf/my.cnf << “EOF”
[mysqld]
default-time-zone = ‘+8:00'
log_timestamps = SYSTEM
skip-name-resolve
log-bin
server_id=80273418
character_set_server=utf8mb4
default_authentication_plugin=mysql_native_password
EOF

mysql -uroot -pjeames -h 168.66.6.35
create database jemdb;

## 创建测试表
 SYS@jem> conn jemmes/jemmes@JEMPDB    
@/home/oracle/demo_ora_create.sql
@/home/oracle/demo_ora_insert.sql

create table flower(
           id varchar2(32)  default sys_guid() primary key,
           flower_name varchar2(200),
           color varchar2(100),
           origin varchar2(200),
           moral varchar2(200),
           create_time timestamp default sysdate,
           update_time timestamp
    );
 JEMMES@JEMPDB> insert into flower(flower_name) values('dd');
--oracle所有表
JEMMES@JEMPDB> select * from tab;

--迁移前相关检查
col TABLE_NAME format a30
SELECT a.table_name,a.num_rows FROM dba_tables a where a.OWNER='JEMMES' ;
select object_type,count(*) from dba_objects where owner='JEMMES' group by object_type;
select object_type,status,count(*) from dba_objects where owner='JEMMES' group by object_type,status;
select sum(bytes)/1024/1024 from dba_segments where owner='JEMMES';