2. The default port number of 2.sqlserver is:1433;
3. The default port number of 3.oracle is:1521;
4. The default port number of 4.DB2 is: 5000;
5. The default port number of 5.PostgreSQL is: 5432.
relational database
Mysql_fetch_array () is? An extended version of mysql_fetch_row (). In addition to storing data in an array through a numerical index, you can also store data as an associative index and use the field name as the key name.