Oracle database 10g express edition sql plus

Those who are already familarwith this stuff will take it in their stride, but the rest of us may need to look at Networking for Dummies, below. Resist the urge to use the CentOS 'Up2Date' tool in the top right corner to get all the CentOS system tools up to date, at least until you have installed Oracle and made a backup i. For example some system libraries may be altered or renamed by an upgrade, and you'll have to start tweaking installer scripts to get them to work, without really knowing what effect the changes had.

This isn't a big deal, but just means we don't get aconvenient way to switch context or copy and paste between the Mac and the VM.

I'll update this document if I do. There is also no way provided to share files between the VM and the host, but you can set up an NFS share. To keep this installation guide simple, I have written a separateNFS setup guide. If you are not familiar with the networking involved, you may want to read 'Networking for Dummies', below,before tackling NFS. With NFS in place, you can download and unzip the Oracle software to the Mac, rathr than having to download it separately withinany VM you create.

It may also be an idea to add some extra swap space, depending on how much memory you gave the VM. For example to add MB, execute the following commandswith root privileges either become the root user first using the command su - , or place sudo in front of each command and enter your own password when prompted :. Parallels provides three Network Adapter options, which represent the different ways the VM can connect to the local network.

The static IP address will depend on the network adaptor we select. You can easily change it later, so feel free to experiment. You do not want to use this. OSX does have an 'ipconfig' command, but it's a rather different beast and requiresa bunch of additional parameters depending on what type of information you are interested in. The related command ifconfig gives me output like this I've changed a few random values in case any hackers are reading this :.

The label on the left identifies the network device, in this case en0 , the Mac's Ethernet connection I used the -u en0 option so it only shows en0 , and not Airport or my Firewire drive and it's telling me that its address is Alternatively, open System Preferences, Network, and look at the 'Network Status' page: you may see an entry something like this depending on your network connection of course ,which tells me that my Mac's internal IP address is The two other pieces of information you will need are the addresses of the DNS server and the default gateway in my case the router, although in some setups it could also be a proxy server.

DNS looks up names such as 'williamrobertson. On home setups it's common for the DNS server and router to share the same address but don't count on it.

There are various ways to find this information, but the easy way to find the router address isby selecting 'Built-in Ethernet' in the 'System Preferences, Network' screen above. Here, my router is at Yet another way, which also tells you the DNS address, is using the command ipconfig getpacket en0 :.

In this case they are both Then within CentOS you can simply cd to that directory and execute. Otherwise, you'll have to download Oracle from inside CentOS. Follow that. It'll work. I added the following lines to the 'start' section:. You can actually control-click this URL and it will load in Firefox.

However, it is rather more useful to be able to do this from the Mac. The client software will also allow other applications to connect to the database. Maybe this is a configuration issue and as usual I'm just missing something.

I'll update this page if I figure out how to fix it. Even so, it's a handy thing to have. You need the Oracle Instant Client set up first as it will look for a sqlplus executable.

The query in Example uses the numeric function TRUNC to display the daily pay of each employee in department , truncated to the nearest dollar. The concatenation operator combines two strings into one string, by appending the second string to the first. You can use this operator to combine information from two columns or expressions in the same column of the report, as in the query in Example Character functions accept character input.

Most return character values, but some return numeric values. Each character function returns a single value for each row that is evaluated. Datetime functions operate on DATE , time stamp, and interval values. Each datetime function returns a single value for each row that is evaluated. For each time stamp value, Oracle Database Express Edition also stores the fractional part of the second, whose precision you can specify.

Because DUAL has only one row, the constant is returned only once. Conversion functions convert one data type to another. FM removes leading and trailing blanks from the month name. An aggregate function takes a group of rows and returns a single result row. The group of rows can be an entire table or view. Aggregate functions are especially powerful when used with the GROUP BY clause, which groups query results by one or more columns, with a result for each group.

Example shows that one employee does not report to a manager. The following query selects the first name, last name, and job title of that employee:. To have the query return only rows where aggregate values meet specified conditions, use an aggregate function in the HAVING clause of the query. The query in Example returns the last name and commission of the employees whose last names begin with 'B'. There are two kinds of CASE expressions, simple and searched. The query in Example uses a simple CASE expression to show the country name for each country code.

The query in Example uses a searched CASE expression to show proposed salary increases, based on length of service. Whenever the value of the expression matches a search value, DECODE returns the result associated with that search value. Note: After connecting to Oracle Database Express Edition through a client program, you enter and run commands in that client program.

For details, see the documentation for your client program. Note: For steps 3 and 4 of the following procedure, you need a user name and password.

Note: For security, your password is not visible on your screen. All rights reserved. For step 3 , you need a user name and password. The next time you start SQL Developer, the connection you created using the preceding procedure still exists.

SQL Developer prompts you for the password that you supplied in step 3 unless you selected the check box Save Password. Caution: Choose a secure password. For guidelines for secure passwords, see Oracle Database Security Guide. Note: For this task, you need the password for the HR account. License Freeware Developer Postgresql Community.

Oracle Database 10g Express Edition Download Oracle Database 10g Express Edition is a freeware version of an immensely popular database creator that is quick to download and intuitive in use. Recently searched for. SQLite Database Browser. FileMaker Pro. Universal SQL Editor.