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JDBC Pertanyaan dan Jawaban Wawancara

Question: What is JDBC? Describe the steps needed to execute a SQL query using JDBC.

Answer: We can connect to databases from java using JDBC. It stands for Java DataBase Connectivity.

Here are the steps:

Register the jdbc driver with the driver manager
Establish jdbc connection
Execute an sql statement
Process the results
Close the connection

Before doing these do import java.sql.*

JDBC is java based API for accessing data from the relational databases. JDBC provides a set of classes and interfaces for doing various database operations. The steps are:

Register/load the jdbc driver with the driver manager.
Establish the connection thru DriverManager.getConnection();
Fire a SQL thru conn.executeStatement();
Fetch the results in a result set.
Process the results.
Close statement/result set and connection object.

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