The following articles mainly describe the cracking of the installation package of DB2 Express-C on Windows with less than MB. In fact, the installation process is very simple, the interface is also a very standard Installation Style for Windows programs, which is totally different from the Universal Installer of Oracle.
I have always felt that I should learn about another database except Oracle, but I am really not interested in SQL Server. I think MySQL or PostgreSQL is an open source database after all, it is difficult to compete with commercial databases in the enterprise-level field at half past one, so choose IBM DB2 for the next time. Like Oracle's free Oracle XE, IBM also launched IBM DB2®Express-C 9.5 and DB2 Express-C provide data server functions at the same core as DB2 Express Edition and are free to use. This is a good opportunity to learn about DB2.
The installation package of DB2 Express-C on Windows is less than 300 MB, and the installation process is very simple. The interface is also a very standard Windows program installation style, which is totally different from that of Oracle's Universal Installer.
In the installation program, DB2 Express-C is called DB2 Easyjet.
During the installation process, I chose custom installation. There is a small bug in the following interface that requires creating a user name and password. After each password is entered, an error is reported, saying "the password length is too small". If the password is increased to 14 characters, an error is still reported. The password must contain uppercase letters, lowercase letters, and digits, if none of the preceding conditions is met, "the password length is too small" is reported "...
After the installation is complete, several background processes starting with db2 are started by default, which is a little more complex than Oracle.
In Windows, like Oracle, some services are generated.
DB2 Information Center Server 9.5 is a detailed online document, which needs to be downloaded separately from the IBM website.
However, it is really hard to find a document link on the IBM website. If you can do a one-stop tahiti.ibm.com, how nice it is.
In fact, DB2 Express-C should be installed in Ubuntu Linux. This learning method should be more intuitive. The installation in Ubuntu is also very simple. You can use apt-get to complete the installation.
Sudo apt-get install db2exc
However, since we only want to learn some concepts, it is impossible to start a Windows system.