added option to specify password in command

README.adoc

@@ -40,6 +40,16 @@ WARNING: Add the appropriate driver jar for your database under the `lib` direct
 
 For example with MySQL: `lib/mysql-connector-java-5.1.47.jar`
 
+==== MS SQL Server
+
+https://docs.microsoft.com/en-us/sql/connect/jdbc/microsoft-jdbc-driver-for-sql-server[JDBC Driver]
+
+https://docs.microsoft.com/en-us/sql/connect/jdbc/building-the-connection-url?view=sql-server-2017[Building the Connection URL]
+```
+jdbc:sqlserver://[serverName[\instanceName][:portNumber]][;property=value[;property=value]]
+```
+
+
 === JSON
 RIOT can read and write JSON data in the following format:
 [source,plaintext]

pom.xml

@@ -12,7 +12,7 @@
 
 	<groupId>com.redislabs</groupId>
 	<artifactId>riot</artifactId>
-	<version>0.5.1</version>
+	<version>0.5.2</version>
 	<packaging>jar</packaging>
 	<name>RIOT</name>
 	<description>Redis Input/Output Tool</description>

src/main/java/com/redislabs/riot/cli/DatabaseConnectionOptions.java

@@ -18,7 +18,7 @@ public class DatabaseConnectionOptions {
 	private String url;
 	@Option(names = "--username", description = "Login username of the database.")
 	private String username;
-	@Option(names = "--password", description = "Login password of the database.", interactive = true)
+	@Option(names = "--password", description = "Login password of the database.", arity = "0..1", interactive = true)
 	private String password;
 
 	public DataSource dataSource() {

src/main/java/com/redislabs/riot/cli/RootCommand.java

@@ -49,7 +49,7 @@ public class RootCommand extends AbstractCommand {
 	private int connectionTimeout = Protocol.DEFAULT_TIMEOUT;
 	@Option(names = "--socket-timeout", description = "Redis socket timeout in milliseconds. (default: ${DEFAULT-VALUE}).")
 	private int socketTimeout = Protocol.DEFAULT_TIMEOUT;
-	@Option(names = "--password", description = "Redis database password.", interactive = true)
+	@Option(names = "--password", description = "Redis database password.", arity = "0..1", interactive = true)
 	private String password;
 	@Option(names = "--pool-max-idle", description = "Maximum number of idle connections in the pool. Use a negative value to indicate an unlimited number of idle connections. (default: ${DEFAULT-VALUE}).")
 	private int maxIdle = 8;