Oracle 12c：Oracle12c怎么安装
Oracle12c：Oracle12c怎么安装，下面是安装步骤：
1.软件版本
数据库软件：Oracle release 12.1
操作系统：Oracle Linux 5.6 64bit
2.安装步骤
修改系统参数
[root@oracle12c dev]# vi /etc/sysctl.conf
kernel.shmall = 4294967296
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 2075004928
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
系统参数生成
[root@oracle12c dev]# /sbin/sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 2
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
kernel.shmall = 4294967296
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
硬件相关的限制设置
[root@oracle12c ~]# vi /etc/security/limits.conf
添加：
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
安装rpm包
查看相关的包，缺少的通过yum install package_name安装
binutils-2.17.50.0.6-14.el5.x86_64
compat-libstdc++-33.x86_64
compat-libstdc++-33.i386
gcc-c++.x86_64
gcc-4.1.2-50.el5.x86_64
glibc.i686
glibc.x86_64
glibc-devel.i386
glibc-devel.x86_64
ksh.x86_64
libgcc.i386
libgcc.x86_64
libstdc++.i386
libstdc++.x86_64
libstdc++-devel.x86_64
libstdc++-devel.i386
libaio.i386
libaio.x86_64
libaio-devel.i386
libaio-devel.x86_64
libXext.i386
libXext.x86_64
libXtst.i386
libXtst.x86_64
libX11.i386
libX11.x86_64
libXau.i386
libXau.x86_64
libXi.i386
libXi.x86_64
make.x86_64
sysstat.x86_64
unixODBC.x86_64
unixODBC-devel.x86_64
建立用户组和用户
[root@oracle12c dev]# groupadd -g 1000 oinstall
[root@oracle12c dev]# groupadd -g 1200 dba
[root@oracle12c dev]# useradd -u 1100 -g oinstall -G dba oracle
[root@oracle12c dev]# passwd oracle
Changing password for user oracle.
New UNIX password:
BAD PASSWORD: it is based on a dictionary word
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
建立目录
[root@oracle12c dev]# mkdir -p /u01/app/
[root@oracle12c dev]# chown -R oracle:oinstall /u01/app/
[root@oracle12c dev]# chmod -R 775 /u01/app/
设置oracle用户环境变量
[root@oracle12c dev]# su - oracle
[oracle@oracle12c ~]$ vi .bash_profile
# Oracle Settings
TMP=/tmp; export TMP
TMPDIR=$TMP; export TMPDIR
ORACLE_BASE=/u01/app; export ORACLE_BASE
DB_HOME=$ORACLE_BASE/product/12.1/db_1; export DB_HOME
ORACLE_HOME=$DB_HOME; export ORACLE_HOME
ORACLE_SID=jessica; export ORACLE_SID
ORACLE_TERM=xterm; export ORACLE_TERM
BASE_PATH=/usr/sbin:$PATH; export BASE_PATH
PATH=$ORACLE_HOME/bin:$BASE_PATH; export PATH
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH
安装Oracle软件
解压缩完安装介质后，有database目录
[root@oracle12c ~]# mkdir /u01/oraInventory
[root@oracle12c ~]# chown -R oracle:oinstall /u01/oraInventory
[root@oracle12c u01]# chown -R oracle:oinstall database
[root@oracle12c u01]# ll
total 8
drwxrwxr-x 2 oracle oinstall 4096 Jun 29 23:20 app
drwxr-xr-x 7 oracle oinstall 4096 Jun 10 20:14 database
[oracle@oracle12c ~]$ export DISPLAY=192.168.1.55:0
[oracle@oracle12c ~]$ cd /u01/database
[oracle@oracle12c database]$ ls
install response rpm runInstaller sshsetup stage welcome.html
[oracle@oracle12c database]$ ./runInstaller
Starting Oracle Universal Installer...
Checking Temp space: must be greater than 500 MB. Actual 57901 MB Passed
Checking swap space: must be greater than 150 MB. Actual 10001 MB Passed
Checking monitor: must be configured to display at least 256 colors. Actual 16777216 Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2013-06-29_11-28-18PM. Please wait ...
之后就会跳出窗口进行Oracle12c的安装，在安装过程中可以看到允许创建PDB(pluggable database)，这个是12c中的新特性。
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