公司环境RedHat AS5 安装Oracle 10g的文档
patch for Oracle10gR2
先执行patch1，，再执行patch2
rpm -Uvh compat-libstdc++-3.2-1.i386.rpm
-rw-r--r-- 1 root root 3016394 Aug 20 14:03 binutils-2.17.50.0.6-6.0.1.el5.i386.rpm
-rw-r--r-- 1 root root 410476 Aug 20 13:52 compat-binutils215-2.15.92.0.2-24.i386.rpm
-rw-r--r-- 1 root root 4256 Aug 20 13:55 compat-libcwait-2.1-1.i386.rpm
-rw-r--r-- 1 root root 3552095 Aug 20 14:08 compat-libstdc++-3.2-1.i386.rpm
-rw-r--r-- 1 root root 88787 Aug 20 14:03 compat-libstdc++-egcs-1.1.2-1.i386.rpm
-rw-r--r-- 1 root root 3840 Aug 20 14:04 compat-oracle-el5-1.0-5.i386.rpm
-rw-r--r-- 1 root root 15427327 Aug 20 16:15 fonts-chinese-3.02-12.el5.noarch.rpm
-rw-r--r-- 1 root root 1079629 Aug 20 14:08 openmotif21-2.1.30-11.EL5.i386.rpm
-rw-r--r-- 1 root root 122314 Aug 20 14:09 openmotif21-debuginfo-2.1.30-11.EL5.i386.rpm
-rw-r--r-- 1 root root 10662 Aug 20 14:06 xorg-x11-libs-compat-6.8.2-1.EL.33.0.1.i386.rpm
[root@ patches]# rpm -Uvh compat-libstdc++-3.2-1.i386.rpm
error: Failed dependencies:
libstdc++ = 4.1.2-42.el5 is needed by (installed) libstdc++-devel-4.1.2-42.el5.i386
libstdc++ = 4.1.2-42.el5 is needed by (installed) gcc-c++-4.1.2-42.el5.i386
libstdc++.so.6 is needed by (installed) libusb-0.1.12-5.1.i386
libstdc++.so.6 is needed by (installed) db4-4.3.29-9.fc6.i386
libstdc++.so.6 is needed by (installed) libtiff-3.8.2-7.el5.i386
libstdc++.so.6 is needed by (installed) beecrypt-4.1.2-10.1.1.i386
libstdc++.so.6 is needed by (installed) flac-1.1.2-28.el5_0.1.i386
libstdc++.so.6 is needed by (installed) pcre-6.6-2.el5_1.7.i386
libstdc++.so.6 is needed by (installed) aspell-0.60.3-7.1.i386
libstdc++.so.6 is needed by (installed) groff-1.18.1.1-11.1.i386
libstdc++.so.6 is needed by (installed) festival-1.95-5.2.1.i386
libstdc++.so.6 is needed by (installed) iptstate-1.4-1.1.2.2.i386
libstdc++.so.6 is needed by (installed) ttmkfdir-3.0.9-23.el5.i386
libstdc++.so.6 is needed by (installed) dvd+rw-tools-7.0-0.el5.3.i386
libstdc++.so.6 is needed by (installed) libmusicbrainz-2.1.1-4.1.i386
libstdc++.so.6 is needed by (installed) cdrdao-1.2.1-2.i386
libstdc++.so.6 is needed by (installed) mesa-libGLU-6.5.1-7.5.el5.i386
libstdc++.so.6 is needed by (installed) opensp-1.5.2-4.i386
libstdc++.so.6 is needed by (installed) openjade-1.3.2-27.i386
libstdc++.so.6 is needed by (installed) cups-1.2.4-11.18.el5.i386
libstdc++.so.6 is needed by (installed) RedHat-lsb-3.1-12.3.EL.i386
libstdc++.so.6 is needed by (installed) hpijs-1.6.7-4.1.el5_0.3.i386
libstdc++.so.6 is needed by (installed) poppler-0.5.4-4.4.el5_1.i386
libstdc++.so.6 is needed by (installed) lftp-3.5.1-2.fc6.i386
libstdc++.so.6 is needed by (installed) coolkey-1.1.0-6.el5.i386
libstdc++.so.6 is needed by (installed) gmp-4.1.4-10.el5.i386
libstdc++.so.6 is needed by (installed) libstdc++-devel-4.1.2-42.el5.i386
libstdc++.so.6 is needed by (installed) libicu-3.6-5.11.1.i386
libstdc++.so.6 is needed by (installed) boost-1.33.1-10.el5.i386
libstdc++.so.6 is needed by (installed) swig-1.3.29-2.el5.i386
libstdc++.so.6 is needed by (installed) doxygen-1.4.7-1.1.i386
libstdc++.so.6 is needed by (installed) systemtap-0.6.2-1.el5.i386
libstdc++.so.6 is needed by (installed) oprofile-0.9.3-16.el5.i386
libstdc++.so.6 is needed by (installed) frysk-0.0.1.2008.03.19.rh1-1.el5.i686
libstdc++.so.6 is needed by (installed) xulrunner-1.9-0.beta5.6.el5.i386
libstdc++.so.6 is needed by (installed) ghostscript-8.15.2-9.1.el5_1.1.i386
libstdc++.so.6 is needed by (installed) yelp-2.16.0-18.el5.i386
libstdc++.so.6 is needed by (installed) firefox-3.0-0.beta5.6.el5.i386
libstdc++.so.6 is needed by (installed) evince-0.6.0-8.el5.i386
libstdc++.so.6 is needed by (installed) vnc-server-4.1.2-9.el5.i386
libstdc++.so.6 is needed by (installed) xulrunner-devel-1.9-0.beta5.6.el5.i386
libstdc++.so.6 is needed by (installed) sound-juicer-2.16.0-3.el5.i386
libstdc++.so.6 is needed by (installed) scim-libs-1.4.4-39.el5.i386
libstdc++.so.6 is needed by (installed) scim-1.4.4-39.el5.i386
libstdc++.so.6 is needed by (installed) scim-tables-0.5.6-7.i386
libstdc++.so.6 is needed by (installed) scim-bridge-0.4.5-7.el5.i386
libstdc++.so.6 is needed by (installed) wvdial-1.54.0-5.2.2.1.i386
libstdc++.so.6 is needed by (installed) scim-pinyin-0.5.91-16.el5.i386
libstdc++.so.6 is needed by (installed) scim-chewing-0.3.1-11.el5.i386
libstdc++.so.6 is needed by (installed) scim-chinese-standard-0.0.2-1.el5.i386
libstdc++.so.6 is needed by (installed) stardict-2.4.5-5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) libusb-0.1.12-5.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) db4-4.3.29-9.fc6.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) libtiff-3.8.2-7.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) beecrypt-4.1.2-10.1.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) flac-1.1.2-28.el5_0.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) pcre-6.6-2.el5_1.7.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) aspell-0.60.3-7.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) groff-1.18.1.1-11.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) festival-1.95-5.2.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) iptstate-1.4-1.1.2.2.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) ttmkfdir-3.0.9-23.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) dvd+rw-tools-7.0-0.el5.3.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) libmusicbrainz-2.1.1-4.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) cdrdao-1.2.1-2.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) mesa-libGLU-6.5.1-7.5.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) opensp-1.5.2-4.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) openjade-1.3.2-27.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) cups-1.2.4-11.18.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) hpijs-1.6.7-4.1.el5_0.3.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) poppler-0.5.4-4.4.el5_1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) coolkey-1.1.0-6.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) gmp-4.1.4-10.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) libicu-3.6-5.11.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) boost-1.33.1-10.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) swig-1.3.29-2.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) doxygen-1.4.7-1.1.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) oprofile-0.9.3-16.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) frysk-0.0.1.2008.03.19.rh1-1.el5.i686
libstdc++.so.6(CXXABI_1.3) is needed by (installed) xulrunner-1.9-0.beta5.6.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) yelp-2.16.0-18.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) evince-0.6.0-8.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) vnc-server-4.1.2-9.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) xulrunner-devel-1.9-0.beta5.6.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) scim-libs-1.4.4-39.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) scim-1.4.4-39.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) scim-tables-0.5.6-7.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) scim-bridge-0.4.5-7.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) scim-pinyin-0.5.91-16.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) scim-chewing-0.3.1-11.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) scim-chinese-standard-0.0.2-1.el5.i386
libstdc++.so.6(CXXABI_1.3) is needed by (installed) stardict-2.4.5-5.i386
libstdc++.so.6(CXXABI_1.3.1) is needed by (installed) opensp-1.5.2-4.i386
libstdc++.so.6(CXXABI_1.3.1) is needed by (installed) vnc-server-4.1.2-9.el5.i386
libstdc++.so.6(CXXABI_1.3.1) is needed by (installed) scim-pinyin-0.5.91-16.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) libusb-0.1.12-5.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) db4-4.3.29-9.fc6.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) libtiff-3.8.2-7.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) beecrypt-4.1.2-10.1.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) flac-1.1.2-28.el5_0.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) pcre-6.6-2.el5_1.7.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) aspell-0.60.3-7.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) groff-1.18.1.1-11.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) festival-1.95-5.2.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) iptstate-1.4-1.1.2.2.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) ttmkfdir-3.0.9-23.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) dvd+rw-tools-7.0-0.el5.3.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) libmusicbrainz-2.1.1-4.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) cdrdao-1.2.1-2.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) mesa-libGLU-6.5.1-7.5.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) opensp-1.5.2-4.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) openjade-1.3.2-27.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) cups-1.2.4-11.18.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) hpijs-1.6.7-4.1.el5_0.3.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) poppler-0.5.4-4.4.el5_1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) coolkey-1.1.0-6.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) gmp-4.1.4-10.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) libicu-3.6-5.11.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) boost-1.33.1-10.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) swig-1.3.29-2.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) doxygen-1.4.7-1.1.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) systemtap-0.6.2-1.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) oprofile-0.9.3-16.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) xulrunner-1.9-0.beta5.6.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) yelp-2.16.0-18.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) firefox-3.0-0.beta5.6.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) vnc-server-4.1.2-9.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) xulrunner-devel-1.9-0.beta5.6.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) scim-libs-1.4.4-39.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) scim-1.4.4-39.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) scim-tables-0.5.6-7.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) scim-bridge-0.4.5-7.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) scim-pinyin-0.5.91-16.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) scim-chewing-0.3.1-11.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) scim-chinese-standard-0.0.2-1.el5.i386
libstdc++.so.6(GLIBCXX_3.4) is needed by (installed) stardict-2.4.5-5.i386
libstdc++.so.6(GLIBCXX_3.4.5) is needed by (installed) boost-1.33.1-10.el5.i386
/usr/lib/libstdc++.so.6 is needed by (installed) libstdc++-devel-4.1.2-42.el5.i386
[root@ patches]#
[root@ patches]# rpm -Uvh compat-oracle-el5-1.0-5.i386.rpm
error: Failed dependencies:
compat-gcc-34 is needed by compat-oracle-el5-1.0-5.i386
compat-gcc-34-c++ is needed by compat-oracle-el5-1.0-5.i386
openmotif21 is needed by compat-oracle-el5-1.0-5.i386
[root@ patches]#
[root@ patches]# rpm -Uvh fonts-chinese-3.02-12.el5.noarch.rpm
warning: fonts-chinese-3.02-12.el5.noarch.rpm: Header V3 DSA signature: NOKEY, key ID 1e5e0159
Preparing... ########################################### [100%]
package fonts-chinese-3.02-12.el5 is already installed
file /usr/share/fonts/chinese/misc/taipei16.pcf.gz from install of fonts-chinese-3.02-12.el5 conflicts with file from package fonts-chinese-3.02-12.el5
file /usr/share/fonts/chinese/misc/taipei20.pcf.gz from install of fonts-chinese-3.02-12.el5 conflicts with file from package fonts-chinese-3.02-12.el5
file /usr/share/fonts/chinese/misc/taipei24.pcf.gz from install of fonts-chinese-3.02-12.el5 conflicts with file from package fonts-chinese-3.02-12.el5
[root@ patches]#
[root@ patches]# rpm -Uvh openmotif21-2.1.30-11.EL5.i386.rpm
error: Failed dependencies:
libXp.so.6 is needed by openmotif21-2.1.30-11.EL5.i386
create unix account
password1
oratest1 / oraapp01
groupadd -g 401 dba
useradd -u 501 -d /home/oratest1 -g dba oratest1
passwd oratest1
configure kernel parameters for oracle10g
vi /etc/sysctl.conf
# Controls the maximum shared segment size, in bytes
kernel.shmmax = 4294967295
# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 268435456
# added in 2009/08/21
kernel.shmmni = 4096
# semaphores: semmsl, semmns, semopm, semmni
kernel.sem = 250 32000 100 128
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
refreshing...
[root@ ~]# /sbin/sysctl -p
vi /etc/security/limits.conf
# use for oracle
* soft nproc 2047
* hard nproc 16384
* soft nofile 1024
* hard nofile 65536
vi /etc/pam.d/login 行末添加以下内容
session required pam_limits.so
安装的时候加忽略操作系统判断的参数 ./runInstaller -ignoresysprereqs
伪造为版本4，否则不能安装！安装完成后再更改回来。
vi /etc/redhat-release
Red Hat Enterprise Linux Server release 5.2 (Tikanga)
更改为:
redhat-4
hosts和DNS的设置导致安装出错：
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : 11 occurred at PC=0x312613
Function=index+0x63
Library=/lib/i686/nosegneg/libc.so.6
Current Java thread:
at oracle.net.common.NetGetEnv.getDNSDomain(Native Method)
at oracle.net.ca.ConfigureProfile.setDefaultProfileParams(Unknown Source)
at oracle.net.ca.InitialSetup.setupConfigObjects(Unknown Source)
at oracle.net.ca.InitialSetup.
at oracle.net.ca.NetCA.main(Unknown Source)
更改hosts及resolv.conf为：
[root@ etc]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
# 127.0.0.1 zkrapp01 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
88.0.33.17 zj-zkrapp01 localhost.localdomain localhost
[root@ etc]# cat resolv.conf
# domainname zking.com
# nameserver 66.0.32.5
# nameserver 66.0.32.6
[root@ etc]#
选择数据库字符集：ZHS16GBK
1* select * from V$NLS_PARAMETERS
SQL> /
PARAMETER VALUE
------------------------------ ------------------------------
NLS_LANGUAGE SIMPLIFIED CHINESE
NLS_TERRITORY CHINA
NLS_CURRENCY ￥
NLS_ISO_CURRENCY CHINA
NLS_NUMERIC_CHARACTERS .,
NLS_CALENDAR GREGORIAN
NLS_DATE_FORMAT YYYY-MM-DD HH24:MI:SS
NLS_DATE_LANGUAGE SIMPLIFIED CHINESE
NLS_CHARACTERSET ZHS16GBK
NLS_SORT BINARY
NLS_TIME_FORMAT HH.MI.SSXFF AM
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY ￥
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_COMP BINARY
NLS_LENGTH_SEMANTICS BYTE
NLS_NCHAR_CONV_EXCP FALSE
已选择19行。
generate database creation scripts: /home/oratest1/admin/test1/scripts
OEM:
the database control URL is:1158/em
[root@ etc]# cd /home/oratest1
[root@ oratest1]# cd oraInventory
[root@ oraInventory]# ls *.sh
orainstRoot.sh
[root@ oraInventory]# ./orainstRoot.sh
Changing permissions of /home/oratest1/oraInventory to 770.
Changing groupname of /home/oratest1/oraInventory to dba.
The execution of the script. is complete
[root@ oraInventory]# cd ..
[root@ oratest1]# pwd
/home/oratest1
[root@ oratest1]# cd ora10g
[root@ ora10g]# ls *.sh
root.sh
[root@ ora10g]# ./root.sh
Running Oracle10 root.sh script...
The following environment variables are set as:
ORACLE_OWNER= oratest1
ORACLE_HOME= /home/oratest1/ora10g
Enter the full pathname of the local bin directory: [/usr/local/bin]:
Copying dbhome to /usr/local/bin ...
Copying oraenv to /usr/local/bin ...
Copying coraenv to /usr/local/bin ...
Creating /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root.sh script.
Now product-specific root actions will be performed.
[root@ ora10g]#
MySQL Index Cardinality는 쿼리 성능에 어떤 영향을 미칩니 까?Apr 14, 2025 am 12:18 AMMySQL Index Cardinality는 쿼리 성능에 중대한 영향을 미칩니다. 1. 높은 카디널리티 인덱스는 데이터 범위를보다 효과적으로 좁히고 쿼리 효율성을 향상시킬 수 있습니다. 2. 낮은 카디널리티 인덱스는 전체 테이블 스캔으로 이어질 수 있으며 쿼리 성능을 줄일 수 있습니다. 3. 관절 지수에서는 쿼리를 최적화하기 위해 높은 카디널리티 시퀀스를 앞에 놓아야합니다.
MySQL : 신규 사용자를위한 리소스 및 튜토리얼Apr 14, 2025 am 12:16 AMMySQL 학습 경로에는 기본 지식, 핵심 개념, 사용 예제 및 최적화 기술이 포함됩니다. 1) 테이블, 행, 열 및 SQL 쿼리와 같은 기본 개념을 이해합니다. 2) MySQL의 정의, 작업 원칙 및 장점을 배우십시오. 3) 인덱스 및 저장 절차와 같은 기본 CRUD 작업 및 고급 사용량을 마스터합니다. 4) 인덱스의 합리적 사용 및 최적화 쿼리와 같은 일반적인 오류 디버깅 및 성능 최적화 제안에 익숙합니다. 이 단계를 통해 MySQL의 사용 및 최적화를 완전히 파악할 수 있습니다.
실제 MySQL : 예 및 사용 사례Apr 14, 2025 am 12:15 AMMySQL의 실제 응용 프로그램에는 기본 데이터베이스 설계 및 복잡한 쿼리 최적화가 포함됩니다. 1) 기본 사용 : 사용자 정보 삽입, 쿼리, 업데이트 및 삭제와 같은 사용자 데이터를 저장하고 관리하는 데 사용됩니다. 2) 고급 사용 : 전자 상거래 플랫폼의 주문 및 재고 관리와 같은 복잡한 비즈니스 로직을 처리합니다. 3) 성능 최적화 : 인덱스, 파티션 테이블 및 쿼리 캐시를 사용하여 합리적으로 성능을 향상시킵니다.
MySQL의 SQL 명령 : 실제 예제Apr 14, 2025 am 12:09 AMMySQL의 SQL 명령은 DDL, DML, DQL 및 DCL과 같은 범주로 나눌 수 있으며 데이터베이스 및 테이블을 작성, 수정, 삭제, 삽입, 업데이트, 데이터 삭제 및 복잡한 쿼리 작업을 수행하는 데 사용됩니다. 1. 기본 사용에는 CreateTable 생성 테이블, InsertInto 삽입 데이터 및 쿼리 데이터 선택이 포함됩니다. 2. 고급 사용에는 테이블 조인, 하위 쿼리 및 데이터 집계에 대한 GroupBy 조인이 포함됩니다. 3. 구문 검사, 데이터 유형 변환 및 권한 관리를 통해 구문 오류, 데이터 유형 불일치 및 권한 문제와 같은 일반적인 오류를 디버깅 할 수 있습니다. 4. 성능 최적화 제안에는 인덱스 사용, 전체 테이블 스캔 피하기, 조인 작업 최적화 및 트랜잭션을 사용하여 데이터 일관성을 보장하는 것이 포함됩니다.
InnoDB는 산 준수를 어떻게 처리합니까?Apr 14, 2025 am 12:03 AMInnodb는 잠금 장치 및 MVCC를 통한 Undolog, 일관성 및 분리를 통해 원자력을 달성하고, Redolog를 통한 지속성을 달성합니다. 1) 원자력 : Undolog를 사용하여 원래 데이터를 기록하여 트랜잭션을 롤백 할 수 있는지 확인하십시오. 2) 일관성 : 행 수준 잠금 및 MVCC를 통한 데이터 일관성을 보장합니다. 3) 격리 : 다중 격리 수준을지지하고 반복적 인 방사선이 기본적으로 사용됩니다. 4) 지속성 : Redolog를 사용하여 수정을 기록하여 데이터가 오랫동안 저장되도록하십시오.
MySQL의 장소 : 데이터베이스 및 프로그래밍Apr 13, 2025 am 12:18 AM데이터베이스 및 프로그래밍에서 MySQL의 위치는 매우 중요합니다. 다양한 응용 프로그램 시나리오에서 널리 사용되는 오픈 소스 관계형 데이터베이스 관리 시스템입니다. 1) MySQL은 웹, 모바일 및 엔터프라이즈 레벨 시스템을 지원하는 효율적인 데이터 저장, 조직 및 검색 기능을 제공합니다. 2) 클라이언트 서버 아키텍처를 사용하고 여러 스토리지 엔진 및 인덱스 최적화를 지원합니다. 3) 기본 사용에는 테이블 작성 및 데이터 삽입이 포함되며 고급 사용에는 다중 테이블 조인 및 복잡한 쿼리가 포함됩니다. 4) SQL 구문 오류 및 성능 문제와 같은 자주 묻는 질문은 설명 명령 및 느린 쿼리 로그를 통해 디버깅 할 수 있습니다. 5) 성능 최적화 방법에는 인덱스의 합리적인 사용, 최적화 된 쿼리 및 캐시 사용이 포함됩니다. 모범 사례에는 거래 사용 및 준비된 체계가 포함됩니다
MySQL : 소기업에서 대기업에 이르기까지Apr 13, 2025 am 12:17 AMMySQL은 소규모 및 대기업에 적합합니다. 1) 소기업은 고객 정보 저장과 같은 기본 데이터 관리에 MySQL을 사용할 수 있습니다. 2) 대기업은 MySQL을 사용하여 대규모 데이터 및 복잡한 비즈니스 로직을 처리하여 쿼리 성능 및 트랜잭션 처리를 최적화 할 수 있습니다.
Phantom은 무엇을 읽고, Innodb는 어떻게 그들을 막을 수 있습니까 (다음 키 잠금)?Apr 13, 2025 am 12:16 AMInnoDB는 팬텀 읽기를 차세대 점화 메커니즘을 통해 효과적으로 방지합니다. 1) Next-Keylocking은 Row Lock과 Gap Lock을 결합하여 레코드와 간격을 잠그기 위해 새로운 레코드가 삽입되지 않도록합니다. 2) 실제 응용 분야에서 쿼리를 최적화하고 격리 수준을 조정함으로써 잠금 경쟁을 줄이고 동시성 성능을 향상시킬 수 있습니다.
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