公司环境RedHat AS5 安装Oracle 10g的文档
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]#
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Comment modifier une table dans MySQL en utilisant l'instruction ALTER TABLE?
Mar 19, 2025 pm 03:51 PM
L'article discute de l'utilisation de l'instruction ALTER TABLE de MySQL pour modifier les tables, notamment en ajoutant / abandon les colonnes, en renommant des tables / colonnes et en modifiant les types de données de colonne.
Comment configurer le cryptage SSL / TLS pour les connexions MySQL?
Mar 18, 2025 pm 12:01 PM
L'article discute de la configuration du cryptage SSL / TLS pour MySQL, y compris la génération et la vérification de certificat. Le problème principal est d'utiliser les implications de sécurité des certificats auto-signés. [Compte de caractère: 159]
Comment gérez-vous les grands ensembles de données dans MySQL?
Mar 21, 2025 pm 12:15 PM
L'article traite des stratégies pour gérer de grands ensembles de données dans MySQL, y compris le partitionnement, la rupture, l'indexation et l'optimisation des requêtes.
Quels sont les outils de GUI MySQL populaires (par exemple, MySQL Workbench, PhpMyAdmin)?
Mar 21, 2025 pm 06:28 PM
L'article traite des outils de GUI MySQL populaires comme MySQL Workbench et PhpMyAdmin, en comparant leurs fonctionnalités et leur pertinence pour les débutants et les utilisateurs avancés. [159 caractères]
Comment déposez-vous une table dans MySQL à l'aide de l'instruction TABLE DROP?
Mar 19, 2025 pm 03:52 PM
L'article discute de la suppression des tables dans MySQL en utilisant l'instruction TABLE DROP, mettant l'accent sur les précautions et les risques. Il souligne que l'action est irréversible sans sauvegardes, détaillant les méthodes de récupération et les risques potentiels de l'environnement de production.
Comment créez-vous des index sur les colonnes JSON?
Mar 21, 2025 pm 12:13 PM
L'article discute de la création d'index sur les colonnes JSON dans diverses bases de données comme PostgreSQL, MySQL et MongoDB pour améliorer les performances de la requête. Il explique la syntaxe et les avantages de l'indexation des chemins JSON spécifiques et répertorie les systèmes de base de données pris en charge.
Comment représentez-vous des relations en utilisant des clés étrangères?
Mar 19, 2025 pm 03:48 PM
L'article discute de l'utilisation de clés étrangères pour représenter les relations dans les bases de données, en se concentrant sur les meilleures pratiques, l'intégrité des données et les pièges communs à éviter.
Comment sécuriser MySQL contre les vulnérabilités communes (injection SQL, attaques par force brute)?
Mar 18, 2025 pm 12:00 PM
L'article discute de la sécurisation MySQL contre l'injection SQL et les attaques brutales à l'aide de déclarations préparées, de validation des entrées et de politiques de mot de passe solides (159 caractères)
