Centos5.8_x86_64+ASM+ORACLE11G操作系统Centos5.8_64位安装桌面，关闭SELINUX以及关闭防火墙，1、内存以及swap分区大小，服务器2G以上内存就可以安装，尽可能给
Centos5.8_x86_64+ASM+ORACLE11G
操作系统Centos5.8_64位
安装桌面，虚拟主机，关闭SELINUX以及关闭防火墙，
1、内存以及swap分区大小，服务器2G以上内存就可以安装，服务器空间，尽可能给大些。
Minimum: 1 GB of RAM
Recommended: 2 GB of RAM or more
To determine the RAM size, enter the following command:
#grep MemTotal /proc/meminfo
Swap分区大小设置
Between 1 GB and 2 GB 分配1.5 times the size of the RAM
Between 2 GB and 16 GB 分配Equal to the size of the RAM
More than 16 GB 分配16GB
#grep SwapTotal /proc/meminfo 确定大小
2、需要安装以下软件
binutils-2.20.51.0.2-5.11.el6 (x86_64)
compat-libcap1-1.10-1 (x86_64)
compat-libstdc++-33-3.2.3-69.el6 (x86_64)
compat-libstdc++-33-3.2.3-69.el6.i686
gcc-4.4.4-13.el6 (x86_64)
gcc-c++-4.4.4-13.el6 (x86_64)
glibc-2.12-1.7.el6 (i686)
glibc-2.12-1.7.el6 (x86_64)
glibc-devel-2.12-1.7.el6 (x86_64)
glibc-devel-2.12-1.7.el6.i686
ksh
libgcc-4.4.4-13.el6 (i686)
libgcc-4.4.4-13.el6 (x86_64)
libstdc++-4.4.4-13.el6 (x86_64)
libstdc++-4.4.4-13.el6.i686
libstdc++-devel-4.4.4-13.el6 (x86_64)
libstdc++-devel-4.4.4-13.el6.i686
libaio-0.3.107-10.el6 (x86_64)
libaio-0.3.107-10.el6.i686
libaio-devel-0.3.107-10.el6 (x86_64)
libaio-devel-0.3.107-10.el6.i686
make-3.81-19.el6
sysstat-9.0.4-11.el6 (x86_64)
unixODBC*
libXp
pdksh
配置Yum安装
将光盘挂载到/mnt位置
[root@oracle ~]# mount /dev/cdrom /mnt
[root@oracle ~]# vi /etc/yum.repos.d/base.repo
[base]
name=base
baseurl=file:///mnt/
enabled=1
gpgcheck=0
执行下面语句安装
yum -y install binutils compat-* elfutils-libelf* gcc gcc-c++ glibc* kernel-headers ksh libaio* libgcc libgomp libstdc++* make sysstat libXp pdksh.x86_64 unixODBC unixODBC-devel
3、注意主机名
[oracle@oracle11g ~]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 oracle11g localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
172.16.40.30 oracle
4、建立相应的用户和组
[root@oracle ~]# groupadd oinstall
[root@oracle ~]# groupadd dba
[root@oracle ~]# groupadd asmadmin
[root@oracle ~]# groupadd asmdba
[root@oracle ~]# useradd -g oinstall -G asmdba,asmadmin,dba grid
[root@oracle ~]# useradd -g oinstall -G dba,asmdba oracle
[root@oracle ~]# passwd grid
[root@oracle ~]# passwd oracle
[root@oracle ~]# id grid
uid=500(grid) gid=500(oinstall) groups=500(oinstall),501(dba),502(asmadmin),503(asmdba)
[root@oracle ~]# id oracle
uid=501(oracle) gid=500(oinstall) groups=500(oinstall),501(dba),503(asmdba)
5、修改/etc/sysctl.conf文件，添加以下内容
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
How does MySQL handle data replication?Apr 28, 2025 am 12:25 AMMySQL processes data replication through three modes: asynchronous, semi-synchronous and group replication. 1) Asynchronous replication performance is high but data may be lost. 2) Semi-synchronous replication improves data security but increases latency. 3) Group replication supports multi-master replication and failover, suitable for high availability requirements.
How can you use the EXPLAIN statement to analyze query performance?Apr 28, 2025 am 12:24 AMThe EXPLAIN statement can be used to analyze and improve SQL query performance. 1. Execute the EXPLAIN statement to view the query plan. 2. Analyze the output results, pay attention to access type, index usage and JOIN order. 3. Create or adjust indexes based on the analysis results, optimize JOIN operations, and avoid full table scanning to improve query efficiency.
How do you back up and restore a MySQL database?Apr 28, 2025 am 12:23 AMUsing mysqldump for logical backup and MySQLEnterpriseBackup for hot backup are effective ways to back up MySQL databases. 1. Use mysqldump to back up the database: mysqldump-uroot-pmydatabase>mydatabase_backup.sql. 2. Use MySQLEnterpriseBackup for hot backup: mysqlbackup--user=root-password=password--backup-dir=/path/to/backupbackup. When recovering, use the corresponding life
What are some common causes of slow queries in MySQL?Apr 28, 2025 am 12:18 AMThe main reasons for slow MySQL query include missing or improper use of indexes, query complexity, excessive data volume and insufficient hardware resources. Optimization suggestions include: 1. Create appropriate indexes; 2. Optimize query statements; 3. Use table partitioning technology; 4. Appropriately upgrade hardware.
What are views in MySQL?Apr 28, 2025 am 12:04 AMMySQL view is a virtual table based on SQL query results and does not store data. 1) Views simplify complex queries, 2) Enhance data security, and 3) Maintain data consistency. Views are stored queries in databases that can be used like tables, but data is generated dynamically.
What are the differences in syntax between MySQL and other SQL dialects?Apr 27, 2025 am 12:26 AMMySQLdiffersfromotherSQLdialectsinsyntaxforLIMIT,auto-increment,stringcomparison,subqueries,andperformanceanalysis.1)MySQLusesLIMIT,whileSQLServerusesTOPandOracleusesROWNUM.2)MySQL'sAUTO_INCREMENTcontrastswithPostgreSQL'sSERIALandOracle'ssequenceandt
What is MySQL partitioning?Apr 27, 2025 am 12:23 AMMySQL partitioning improves performance and simplifies maintenance. 1) Divide large tables into small pieces by specific criteria (such as date ranges), 2) physically divide data into independent files, 3) MySQL can focus on related partitions when querying, 4) Query optimizer can skip unrelated partitions, 5) Choosing the right partition strategy and maintaining it regularly is key.
How do you grant and revoke privileges in MySQL?Apr 27, 2025 am 12:21 AMHow to grant and revoke permissions in MySQL? 1. Use the GRANT statement to grant permissions, such as GRANTALLPRIVILEGESONdatabase_name.TO'username'@'host'; 2. Use the REVOKE statement to revoke permissions, such as REVOKEALLPRIVILEGESONdatabase_name.FROM'username'@'host' to ensure timely communication of permission changes.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
Atom editor mac version download
The most popular open source editor
SublimeText3 Mac version
God-level code editing software (SublimeText3)
