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Download CS4273 Distributed System Technologies and Programming Tutorial on JDBC
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Transcript
CS4273 Distributed System Technologies and Programming Tutorial on JDBC 1. Explain the followings (what information does it specify): a) JDBC driver b) Database url c) JDBC proxy (gateway) 2. Compare and discuss the differences between a java application program and an applet program, both using JDBC to retrieve data (say select) from a database. Please emphasize on the data flow and programming part. 3. In the sample program of the 2-tier system, the applet retrieves data from the database by “select” statement. Change the applet program to insert a new row (a data object) into the table. The values of the attributes of the data object are input from text fields. Please emphasize only on the changes you need to make. 4. If you’re asked to change a system of 2-tier structure to 3-tier’s in Java, what extra work is required.
