first commit for openGauss connector jdbc

docs/documentation/92/use.md

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+---
+layout: default_docs
+title: Chapter 3. Initializing the Driver
+header: Chapter 3. Initializing the Driver
+resource: media
+previoustitle: Creating a Database
+previous: your-database.html
+nexttitle: Chapter 3. Loading the Driver
+next: load.html
+---
+		
+**Table of Contents**
+
+
+* [Importing JDBC](use.html#import)
+* [Loading the Driver](load.html)
+* [Connecting to the Databas](connect.html)
+   * [Connection Parameters](connect.html#connection-parameters)
+
+This section describes how to load and initialize the JDBC driver in your programs.
+
+<a name="import"></a>
+# Importing JDBC
+
+Any source that uses JDBC needs to import the `java.sql` package, using:
+
+import java.sql.*;
+
+### Note
+
+You should not import the `org.postgresql` package unless you are not using standard
+PostgreSQL™ extensions to the JDBC API.