谁有oracle7下载

谁有oracle7下载

Oracle系列七 子查询 operator (SELECT select_list FROM table);
示例：
注意事项

示例：

在子查询中使用组函数


非法使用子查询


多行子查询

在多行子查询中使用 ANY 操作符
示例：返回其它部门中比job_id为‘IT_PROG’部门任一工资低的员工的员
工号、姓名、job_id 以及salary

在多行子查询中使用 ALL 操作符示例：返回其它部门中比job_id为‘IT_PROG’部门所有工资都低的员工            的员工号、姓名、job_id 以及salary

子查询中的空值问题

Oracle系列七 子查询
标签：mamicode   nbsp   ima   HERE   sel   rac   操作   weight   manager

InstallOracleLinux7onOracleVirtualBox I'll start coding with JEE soon. Product environment adopts Oracle WebLogic in Linux, technology adopts EJB3 and JPA. So I'm going to set a development environment in my own computer with them. For iMac installing JDK, Eclipse or Maven wil
I'll start coding with JEE soon. Product environment adopts Oracle + WebLogic in Linux, technology adopts EJB3 and JPA. So I'm going to set a development environment in my own computer with them.
For iMac installing JDK, Eclipse or Maven will not be problem, but installing Oracle seems a impossible mission, now virtualbox become a very good choice.
Download from https://www.virtualbox.org/, nothing special on installing. But it's really a magic tool.
You'd better to download a Oracle Linux 7 installer ISO file before starting this step. https://edelivery.oracle.com/linux. You need specify a installer ISO file during the process of creating virtual machine.
1. Name your virtual machine, choose the OS you will install later and set the size of memory.

2. Set the size of virtual machine's "hard disk". Click OK the virtual machine will be created.

You still need change's several basic settings. Select the virtual machine you just created, click "Settings" button on the top of VirtualBox Manager.
1. Specify the installer ISO file which will be installed onto this virtual machine later.
Storage --> Click CD ROM icon on right (Storage Tree) --> Click CD ROM icon on left (Attributes) --> Choose a virtual CD/DVD disk file --> Select the Oracle Linux installer which you downloaded in advance.

2. Enable network connection. This virtual machine will be assigned a IP address you can access from you computer after OS has been installed. For example, you can ssh this virtual machine.

3. All done, click OK.
1. Select VirtualBox you created former, click "Start" button on top

** Clicking "Left Command Button" can move your mouse cursor out of the installation screen.
2. Software Selection

3. Enable network connection

4. Reboot after complete installation, still need do some basic configurations.

OpenJDK is default JVM in Oracle Linux. I see quite a lot of posts say simply run command "yum remove java*", but I'm not sure if this way is secure because wildcard is used, so it seems not really. I'm going to use software GUI to remove it.
After you login Oracle Linux-->Start menu-->System tools-->Software, search openjdk then remove packages.

1. Download 64bit jdk archive file
2. Extract it into /usr/lib
3. Add JAVA_HOME variable into /etc/profile. This jvm is enabled for all the users of this vm.
export JAVA_HOME=/usr/lib/jdk-1.8.0-xxx
export PATH=$PATH:$JAVA_HOME/bin

Oracle笔记 七、PL/SQL 异常处理
Oracle笔记 七、PL/SQL 异常处理
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[转载]Howtoinstalloraclejava7inubuntu1304/1210/12 If you installed java 7 from any other PPA and you are having problem with java then you have to do following steps before installing the PPA menctioned here
sudo rm /var/lib/dpkg/info/oracle-java7-installer* sudo apt-get purge oracle-java7-installer* sudo rm /etc/apt/sources.list.d/*java* sudo apt-get update
Install oracle java 7 in ubuntu 13.04/12.10/12.04
Open the terminal and run the following commands
sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java7-installer
You can check the java version by searching java in dashboard

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