First, oracle download note Oracle is divided into two files, after downloading, the two files are extracted to the same directory. In the path name, it is best not to appear in Chinese, and do not appear spaces and other irregular characters. Official Address: http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html The following two Web site source of this official download Web page. Win 32-bit operating system: http://download.oracle.com/otn/nt/oracle11g/112010/win32_11gR2_database_1of2.ziphttp:// Download.oracle.com/otn/nt/oracle11g/112010/win32_11gr2_database_2of2.zip win 64-bit operating system:/HTTP download.oracle.com/otn/nt/oracle11g/112010/win64_11gr2_database_1of2.ziphttp://download.oracle.com/otn/nt/ Oracle11g/112010/win64_11gr2_database_2of2.zip Two, Oracle installation 1. Unzip the file, select the two compressed packages together, right-click-> Extract Files 2. Both unzip to the same path, 3. To the appropriate decompression path above, find the executable installation file "setup.exe" double-click the installation. 4. Install the first step: Configure the security update, this step can fill in the e-mail address (also can not fill in, just received some useless mail only). Cancel the "I want to accept security update (W) through my Oracle support" below. 5. Security options, select Create and configure a database directly by default (a DB instance is created automatically when you finish installing the database management software). 6. System class, directly select the default desktop class is ready. (If the computer you are installing to is a personal notebook or personal computer using this option) 7. Typical installation. Important steps. It is recommended that you only update the Oracle base directory, and that the directory path does not contain Chinese or other special characters. The global database name can be defaulted, and password passwords must be kept in mind. Password inputWhen there is a warning, do not comply with the ORACEL recommendations without the tube. (because the password rules recommended by Oracel are cumbersome, they must be uppercase and lowercase plus numbers, and must be more than 8 digits.) Trouble, can enter the usual oneself habit of short password can) 8. If you enter a short, simple password, the installation will prompt the following. Just confirm Y to continue with the installation. 9. Prerequisite checks. The installer checks to see if the hardware and software system meets the minimum requirements for installing this Oracle version. The immediate next step is OK. 10. A summary of some of the relevant selection configuration information before installation. You can save the file or do not save the file directly to the point of completion. 11. Installs the product to carry on automatically, does not have the tube. 12. After the database management software files and DBMS files are installed, a database that installs the ORCL name of the default first instance database is created automatically. 13. Once the instance database has been created, the default is to lock all accounts out of the system (except SYS and the SYSTEM account is available), Suggest password management on the right, and unlock the common Scott account and enter the password.  14. Unlock the Scott account, remove the green tick from the front, and enter the password. You can also enter a short password that you normally use, and you don't have to add numbers to the 8-bit size that Oracle recommends. Oh. 15. Similarly, passwords that do not conform to the rules are prompted. Don't worry about it, continue Y. 16. The installation is successful and complete. It's simple, hehe. three, after installation, enter the small test. You can start by using the "Oracle 11g", "Application Development", "SQL Developer or SQL Plus" connection in the application. Note For the first time, when you use SQL Developer, you are prompted to specify the path to Java.exe, so don't specify your own java_home here (I just don't know, specify a JDK6, end up saying incompatible.) You can use the Oracel installation path below the JDK path specifically:. Of course, if you are not careful, choose the wrong. Select the Java_home in the Advanced version, open SQL Developer error after the incompatibility, there are ways to solve. You can find the "sqldeveloper.conf" file in the "F:\app\chen\product\11.2.0\dbhome_1\sqldeveloper\sqldeveloper\bin" path after you find the SetjaVahome the value that is matched, delete the following configuration. The guarantee will prompt that the read-only file cannot be overwritten and saved. You can save it to the desktop, then go back to the bin directory to remove the file, and then copy the file on the desktop, and then open, re-select Java.exe. It's good to choose right now.
