Operation summary of JDBC database

• Java

JDBC is a set of APIs that can execute SQL statements

Because the traditional database operation requires programmers to master the APIs of different databases, it is extremely inconvenient

Therefore, Java defines the standard interfaces and classes of JDBC, which provides a unified way for programmers to operate the database

JDBC has a single operation mode, which is composed of five processes: 1 Register the database driver with the drivermanager through the JDBC class library provided by the database manufacturer

2. Use the getconnection () method provided by drivermanager to connect to the database

3. Create an SQL statement object through the createstatement method of the database connection object

4. Execute the SQL statement and return the result set to the resultset

5. Use the while loop to read the results

6. Close database resources

Let's take a look at the specific methods of operating the MySQL database

preparation

First, we need to build a database and a simple table

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