Bukkit

if(!Bukkit.getPluginManager().isPluginEnabled("SQLibrary")) {
	Bukkit.getLogger().log(
		Level.SEVERE,
		"Plugin was unable to start | SQLibrary is not installed"
	);
			
	this.setEnabled(false);
	return;
}

soft-depend: [SQLibrary]

SQLDatabase database = null;
try {
	database = new MySQL("hostname", "port", "database", "username", "password");
        database.openConnection();
}
catch (SQLException | ClassNotFoundException e) {
	Bukkit.getLogger.log(Level.SEVERE, "Unable to connect to MySQL database", e);
	return;
}

SQLDatabase database = null;
try {
	database = new SQLite(new File("path to database file"));
        database.openConnection();
}
catch (SQLException | ClassNotFoundException e) {
	Bukkit.getLogger.log(Level.SEVERE, "Unable to connect to SQLite database", e);
	return;
}

/* Create a new TableBuilder */
TableBuilder builder = QueryBuilder.createTable("player_stats");
builder.createIfNotExists();

/* Create a new Column Builder |  new ColumnBuilder(String columnName, ColumnType type, new ColumnMeta(size)) */
ColumnBuilder columnBuilder = new ColumnBuilder("player_id", ColumnType.VARCHAR, new ColumnMeta(25).primaryKey().notNull());

/* Append additional columns to the Column Builder */
columnBuilder.appendColumn("player_kills", ColumnType.INT, new ColumnMeta(10).notNull().defaultValue(0));
columnBuilder.appendColumn("player_deaths", ColumnType.INT, new ColumnMeta(10).notNull().defaultValue(0));
columnBuilder.appendColumn("player_gold", ColumnType.INT, new ColumnMeta(10).notNull().defaultValue(500));

/* Set the Column Builder */
builder.columns(columnBuilder);

/* Execute the SQL Update */
database.executeUpdate(builder.build());

/* Create a new Select Builder */
SelectBuilder selectBuilder = QueryBuilder.selectAll("player_stats");
/* OR */
SelectBuilder selectBuilder = QueryBuilder.select("player_stats", {"player_kills", "player_deaths", "player_gold"});

/* Create a new Condition Builder to add to our SelectBuilder */
ConditionBuilder conditionBuilder = new ConditionBuillder(Condition.fieldEquals("player_id", "SOME PLAYER ID")
selectBuilder.where(conditionBuilder);

/* Execute the query and retrieve a Result Set */
ResultSet set = database.executeQuery(selectBuilder.build());

/* Process the Result set */
if(set.next) {
	/* Process Player Data */
}
else {
	/* No player data in database */
}

/* Create our UpdateBuilder */
UpdateBuilder builder = QueryBuilder.update("player_stats");

/* Set the Values we wish to update, In this example I am going to update the player kills by +1 and set the player gold to 2000 */
builder.values(new Value[] {
	
	/* SQLibrary will automatically format " ' " around Strings. Casting a String to a Object will allow you to set a un-formatted value */
	new Value("player_kills", (Object) "`player_kills` + 1");
	new Value("player_gold", 1000);

});

/* Create a new Condition Builder */
ConditionBuilder conditionBuilder = new ConditionBuilder(Condition.fieldEquals("player_id", "SOME PLAYER ID"));

/* Add another condition to the builder for an example */
conditionBuilder.and(Condition.fieldEqualOrLessThan("player_gold", 1000));

/* Add the ConditionBuilder and Execute the Update */
builder.where(conditionBuilder);
database.executeUpdate(builder.build());

/* Create our InsertBuilder */
InsertBuilder builder = QueryBuilder.insertInto("player_stats");

/* Set the Values we want to insert */
builder.values(new Value[] {
	new Value("player_id", "SOME PLAYER ID");
	new Value("player_kills", 12);
	new Value("player_deaths", 0);
	new Value("player_gold", 6000);
});

/* Execute the Update */
database.executeUpdate(builder.build());