Oracle 12C Centos7.4桌面版本安装

1.系统安装: 安装Centos7.4 桌面版本,注意,swap分区要是内存的2倍
2.系统安装完成后

#安装工具包
 yum install -y vim wget net-tools unzip zip
#安装依赖

yum -y install binutils compat-libcap1 compat-libstdc++-33 compat-libstdc++-33*i686 compat-libstdc++-33*.devel compat-libstdc++-33 compat-libstdc++-33*.devel gcc gcc-c++ glibc glibc*.i686 glibc-devel glibc-devel*.i686 ksh libaio libaio*.i686 libaio-devel libaio-devel*.devel libgcc libgcc*.i686 libstdc++ libstdc++*.i686 libstdc++-devel libstdc++-devel*.devel libXi libXi*.i686 libXtst libXtst*.i686 make sysstat unixODBC unixODBC*.i686 unixODBC-devel unixODBC-devel*.i686




#关闭selinux、防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service
firewall-cmd --state
sed -i '/^SELINUX=.*/c SELINUX=disabled' /etc/selinux/config
sed -i 's/^SELINUXTYPE=.*/SELINUXTYPE=disabled/g' /etc/selinux/config
grep --color=auto '^SELINUX' /etc/selinux/config
setenforce 0

  # 创建用户和组


  groupadd oinstall 
  groupadd dba 
  groupadd oper 
  useradd -g oinstall -G dba,oper oracle 
  echo "123456" | passwd --stdin oracle #oracle用户的登录密码,后续登录要用,记着。

#创建目录

  mkdir -p /u01/app/oracle/ 
  chown -R oracle:oinstall /u01/app 
  chmod -R 775 /u01/app


 

#修改系统参数


echo '
* soft nofile 655350 
* hard nofile 655350 
* soft nproc 655350 
* hard nproc 655350
* soft stack 6553600
* hard stack 655360
* soft memlock unlimited
* hard memlock unlimited
* soft core unlimited
* hard core unlimited
'>>/etc/security/limits.conf





echo ' # Controls IP packet forwarding net.ipv4.ip_forward = 0 # Controls source route verification net.ipv4.conf.default.rp_filter = 1 # Do not accept source routing net.ipv4.conf.default.accept_source_route = 0 # Controls the System Request debugging functionality of the kernel kernel.sysrq = 0 # Controls whether core dumps will append the PID to the core filename. # Useful for debugging multi-threaded applications. kernel.core_uses_pid = 1 # Controls the use of TCP syncookies net.ipv4.tcp_syncookies = 1 # Disable netfilter on bridges. net.bridge.bridge-nf-call-ip6tables = 0 net.bridge.bridge-nf-call-iptables = 0 net.bridge.bridge-nf-call-arptables = 0 # Controls the default maxmimum size of a mesage queue kernel.msgmnb = 65536 # Controls the maximum size of a message, in bytes kernel.msgmax = 65536 # Controls the maximum shared segment size, in bytes kernel.shmmax = 68719476736 # Controls the maximum number of shared memory segments, in pages kernel.shmall = 4294967296 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_keepalive_time = 1200 #表示当keepalive起用的时候,TCP发送keepalive消息的频度。缺省是2小时,改为20分钟。 net.ipv4.ip_local_port_range = 1024 65000 ##表示用于向外连接的端口范围。缺省情况下很小:32768到61000,改为1024到65000。 net.ipv4.tcp_max_syn_backlog = 8192 ##表示SYN队列的长度,默认为1024,加大队列长度为8192,可以容纳更多等待连接的网络连接数。 net.ipv4.tcp_max_tw_buckets = 5000 ##表示系统同时保持TIME_WAIT套接字的最大数量,如果超过这个数字,TIME_WAIT套接字将立刻被清除并打印警告信息。 vm.max_map_count=655360 fs.aio-max-nr = 1048576 fs.file-max = 6815744 kernel.sem = 250 32000 100 128 net.core.rmem_default = 262144 net.core.rmem_max = 4194304 net.core.wmem_default = 262144 net.core.wmem_max = 1048586 net.ipv4.ip_local_port_range = 9000 65500 '>/etc/sysctl.conf
添加系统变量
vi ~oracle/.bash_profile

export PATH
export NLS_LANG="SIMPLIFIED CHINESE_CHINA.AL32UTF8"
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/12.2.0/dbhome_1
export ORACLE_SID=orcl
export PATH=$ORACLE_HOME/bin:$PATH:HOME/bin
export EDITOR=/bin/vi


#上传下载的安装包
wget -P /u01/app/oracle  http://172.16.2.130/tools/oracle/linuxx64_12201_database.zip

cd /orcl/app/oracle

#切换用户
su  oracle  
cd /u01/app/oracle  
unzip linuxx64_12201_database.zip 
export LANG="en_US"  
cd /u01/app/oracle/database  

#重启
reboot

oracle用户登录系统执行安装

cd /u01/app/oracle/database

./runInstaller

Oracle 12C  Centos7.4桌面版本安装

 

 

Oracle 12C  Centos7.4桌面版本安装

 

Oracle 12C  Centos7.4桌面版本安装

 

 Oracle 12C  Centos7.4桌面版本安装

 

 Oracle 12C  Centos7.4桌面版本安装

 

 Oracle 12C  Centos7.4桌面版本安装

 

 

 Oracle 12C  Centos7.4桌面版本安装

 

Oracle 12C  Centos7.4桌面版本安装

 

 Oracle 12C  Centos7.4桌面版本安装

 

 Oracle 12C  Centos7.4桌面版本安装

 

 

 

#出现上图画面时,新开一个命令行,切换到root用户 执行2个脚本

su root
sh /u01/app/oraInventory/orainstRoot.sh  #回车
sh /u01/app/oracle/product/12.2.0/dbhome_1/root.sh #回车


Oracle 12C  Centos7.4桌面版本安装

 

 Oracle 12C  Centos7.4桌面版本安装

 Oracle 12C  Centos7.4桌面版本安装

 

 

 

#常用命令


# 增加文件,扩展表空间
ALTER TABLESPACE USERS ADD DATAFILE '/u01/app/oracle/oradata/orcl/users03.dbf' size 200m autoextend on next 100m maxsize unlimited;

#创建用户和表空间,并授权
create tablespace fang datafile '/u01/app/oracle/oradata/fang.dbf' size 200m autoextend on next 100m maxsize unlimited;

create user fang identified by 123456 default tablespace fang;

grant connect,resource to fang;

grant dba to fang;

#远程访问命令
sqlplus fang/123456@172.16.2.170:1521/orcl

sqlplus sys/password@192.168.0.1:1521/orcl as sysdba

#修改数据库自动增长空间
ALTER DATABASE DATAFILE 'c:\SmartDB01.ora' AUTOEXTEND ON NEXT 2G


导入数据
imp fang/123456@172.16.2.170:1521/orcl file=./fang_2020_11_09.dmp  log=./imp_fang_new.log full=y ignore=y  statistics=none 

exp fang/123456@172.16.2.170:1521/orcl file=./bj202011211.dmp full=y
 
#查看表空间大小 
select sum(bytes)/(1024*1024) as free_space,tablespace_name
    from dba_free_space
    group by tablespace_name;

#查询表空间剩余大小
SELECT temp_used.tablespace_name,
total - used as "Free",
total as "Total",
round(nvl(total - used, 0) * 100 / total, 3) "Free percent"
FROM (SELECT tablespace_name, SUM(bytes_used) / 1024 / 1024 used
FROM GV_$TEMP_SPACE_HEADER
GROUP BY tablespace_name) temp_used,
(SELECT tablespace_name, SUM(bytes) / 1024 / 1024 total
FROM dba_temp_files
GROUP BY tablespace_name) temp_total
WHERE temp_used.tablespace_name = temp_total.tablespace_name
ORDER BY B.TABLESPACE, B.SEGFILE#, B.SEGBLK#, B.BLOCKS;


alter database tempfile '/u01/app/oracle/oradata/orcl/temp01.dbf' autoextend on next 500m maxsize unlimited;

 
drop tablespace fang including contents and datafiles cascade constraint;–删除表空间

#数据库状态
lsnrctl status

dbca 安装数据库
netca 监听器启动安装

netmgr

select * from dual;




查看数据库的并发连接数:

select count(*) from v$session where status=‘ACTIVE’;

查看当前数据库建立的会话情况:

select sid,serial#,username,program,machine,status from v$session;

查询数据库允许的最大连接数:

select value from v$parameter where name = ‘processes’;

或者:show parameter processes;

修改数据库允许的最大连接数:

alter system set processes = 5000 scope = spfile;

(需要重启数据库才能实现连接数的修改)

一、停止EXP/IMP优化速度

可以直接KILL 进程,但先要KILL 父进程,然后KILL子进程,只KILL子进程,EXP/IMP还会在后台执行的

样例:ps -ef |grep imp 查询到pid,kill -9 pid 、kill -9 ppid,就可以了  一、停止EXP/IMP优化速度

可以直接KILL 进程,但先要KILL 父进程,然后KILL子进程,只KILL子进程,EXP/IMP还会在后台执行的

样例:ps -ef |grep imp 查询到pid,kill -9 pid 、kill -9 ppid,就可以了  ps -ef |grep exp

重启数据库:
shutdown immediate;
startup;

 

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