1:查看内存:grep MemTotal /proc/meminfo查看swap:grep SwapTotal /proc/meminfo2: 检查RPM包。Red Hat Enterprise Linux 4.0
1:查看内存:grep MemTotal /proc/meminfo
查看swap:grep SwapTotal /proc/meminfo
2: 检查RPM包。
Red Hat Enterprise Linux 4.0
CentOS5.4
binutils-2.15.92.0.2-13.EL4
binutils-2.17.50.0.6-6.el5
compat-db-4.1.25-9
compat-db-4.2.52-5.1
compat-libstdc++-296-2.96-132.7.2
compat-libstdc++-33-3.2.3-61
control-center-2.8.0-12
control-center-2.16.0-16.el5
gcc-3.4.3-22.1.EL4
gcc-4.1.2-42.el5
gcc-c++-3.4.3-22.1.EL44
gcc-c++-4.1.2-42.el5
glibc-2.3.4-2.9
glibc-2.5-24
glibc-common-2.3.4-2.9
glibc-common-2.5-24
gnome-libs-1.4.1.2.90-44.1
libgnome-2.16.0-6.el5
libstdc++-3.4.3-22.1
libstdc++-4.1.2-42.el5
libstdc++-devel-3.4.3-22.1
libstdc++-devel-4.1.2-42.el5
make-3.80-5
make-3.81-3.el5
pdksh-5.2.14-30
ksh-20060214-1.7
sysstat-5.0.5-1
sysstat-7.0.2-1.el5
xscreensaver-4.18-5.rhel4.2
gnome-screensaver-2.16.1-8.el5
setarch-1.6-1
setarch-2.0-1.1
libXp-1.0.0-8.1.el5
最主要的是 libXp-1.0.0-8.1.el5
如果他没有直接导致:
[Oracle@linux database]$ ./runInstaller
Starting Oracle Universal Installer...
Checking installer requirements...
Checking operating system version: must be RedHat-3, SUSE-9, redhat-4, UnitedLinux-1.0, asianux-1 or asianux-2
Passed
All installer requirements met.
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2010-11-18_10-08-45PM.
Please wait ...[oracle@linux database]$ Exception in thread "main" java.lang.UnsatisfiedLinkError:
/tmp/OraInstall2010-11-18_10-08-45PM/jre/1.4.2/lib/i386/libawt.so: libXp.so.6: cannot open shared object file: No such file or directory
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at sun.security.action.LoadLibraryAction.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.awt.NativeLibLoader.loadLibraries(Unknown Source)
at sun.awt.DebugHelper.
at java.awt.Component.
这个问题找了很久,才找到。最后才是这个包没有安装。
创建组:
groupadd oinstall
groupadd dba
groupadd oper
添加用户:
useradd -g oinstall -G dba,oper oracle
设置密码:passwd oracle
将Oracle用户添加到oinstall组里面,他的两个辅助的组是dba,oper
在Oracle的home目录下面创建u01目录,然后改变u01的权限。
chown oracle:oinstall /home/u01
后面是Linux参数的配置:
/etc/sysctl.conf 文件
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144
/etc/security/limits.conf file:
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
/etc/pam.d/login
session required pam_limits.so
/etc/profile
if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
查看Shell:echo $shell
设置Oracle的环境变量:
su oracle
vi .bash_profile
ORACLE_BASE=/u01/oracle
ORACLE_SID=orcl
export ORACLE_BASE ORACLE_SID
ORACLE_HOME=$ORACLE_BASE/u01/oracle/product/10.2.0
PATH=$ORACLE_HOME/bin:$PATH
unset=ORACLE_HOME
unset=TNS_NAME
查看环境是否生效:env | grep ORA
所有工作配置完了后到图形界面上面安装:
进入database目录,运行里面的runInstaller
命令:./runInstaller
后面跟windows上面安装的差不多。。。
不过有个地方不同,,在安装数据库软件后,会叫你去运行两个脚本。
/home/oracle/u01/oraInventory/orainstRoot.sh
/home/oracle/u01/oracle/product/10.2.0/db_1
这里直接按enter键即可。

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.


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