欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 昨日为了测试一个机制,在centos6.2下面安装11gr2,遇到pdksh-5.2.14这个包不能自动安装(如图1)。 记下地址,为了我这个日益健忘的脑子。 网上找了很久得之,于是手动安装OK(如图2)。 操作步骤: #下
欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入
昨日为了测试一个机制,在centos6.2下面安装11gr2,遇到pdksh-5.2.14这个包不能自动安装(如图1)。
记下地址,为了我这个日益健忘的脑子。
网上找了很久得之,于是手动安装OK(如图2)。
操作步骤:
#下载i386二进制包文件
[root@localhost oracle]# wget http://mirror.centos.org/centos/5/os/i386/CentOS/pdksh-5.2.14-37.el5_8.1.i386.rpm
--2013-06-06 18:47:22-- http://mirror.centos.org/centos/5/os/i386/CentOS/pdksh-5.2.14-37.el5_8.1.i386.rpm
Resolving mirror.centos.org... 202.76.233.2
Connecting to mirror.centos.org|202.76.233.2|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 202853 (198K) [application/x-rpm]
Saving to: â?#339;pdksh-5.2.14-37.el5_8.1.i386.rpmâ?/P>
100%[======================================>] 202,853 157K/s in 1.3s
2013-06-06 18:47:24 (157 KB/s) - â?#339;pdksh-5.2.14-37.el5_8.1.i386.rpmâ?/P>
##附X64位安装包地址 http://mirror.centos.org/centos/5/os/x86_64/CentOS/pdksh-5.2.14-37.el5_8.1.x86_64.rpm
#安装完成
[root@localhost oracle]# yum install pdksh-5.2.14-37.el5_8.1.i386.rpm
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
Setting up Install Process
Examining pdksh-5.2.14-37.el5_8.1.i386.rpm: pdksh-5.2.14-37.el5_8.1.i386
Marking pdksh-5.2.14-37.el5_8.1.i386.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package pdksh.i386 0:5.2.14-37.el5_8.1 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
pdksh i386 5.2.14-37.el5_8.1 /pdksh-5.2.14-37.el5_8.1.i386 364 k
Transaction Summary
================================================================================
Install 1 Package(s)
Total size: 364 k
Installed size: 364 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : pdksh-5.2.14-37.el5_8.1.i386 1/1
Installed:
pdksh.i386 0:5.2.14-37.el5_8.1
Complete!

图1

图2

MySQLviewshavelimitations:1)Theydon'tsupportallSQLoperations,restrictingdatamanipulationthroughviewswithjoinsorsubqueries.2)Theycanimpactperformance,especiallywithcomplexqueriesorlargedatasets.3)Viewsdon'tstoredata,potentiallyleadingtooutdatedinforma

ProperusermanagementinMySQLiscrucialforenhancingsecurityandensuringefficientdatabaseoperation.1)UseCREATEUSERtoaddusers,specifyingconnectionsourcewith@'localhost'or@'%'.2)GrantspecificprivilegeswithGRANT,usingleastprivilegeprincipletominimizerisks.3)

MySQLdoesn'timposeahardlimitontriggers,butpracticalfactorsdeterminetheireffectiveuse:1)Serverconfigurationimpactstriggermanagement;2)Complextriggersincreasesystemload;3)Largertablesslowtriggerperformance;4)Highconcurrencycancausetriggercontention;5)M

Yes,it'ssafetostoreBLOBdatainMySQL,butconsiderthesefactors:1)StorageSpace:BLOBscanconsumesignificantspace,potentiallyincreasingcostsandslowingperformance.2)Performance:LargerrowsizesduetoBLOBsmayslowdownqueries.3)BackupandRecovery:Theseprocessescanbe

Adding MySQL users through the PHP web interface can use MySQLi extensions. The steps are as follows: 1. Connect to the MySQL database and use the MySQLi extension. 2. Create a user, use the CREATEUSER statement, and use the PASSWORD() function to encrypt the password. 3. Prevent SQL injection and use the mysqli_real_escape_string() function to process user input. 4. Assign permissions to new users and use the GRANT statement.

MySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand

ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

ToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters


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

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Zend Studio 13.0.1
Powerful PHP integrated development environment

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

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),
