Database Mysql
I have referred to these links:
Config file
logstash-sample.conf
                # Sample Logstash configuration for creating a simple
                # Beats -> Logstash -> Elasticsearch pipeline.
                                            jdbc {
                jdbc_driver_library => "C:/logstash-6.5.1/logstash-core/lib/jars/x-pack-sql-jdbc-6.5.1.jar"
                jdbc_driver_class => "com.mysql.cj.jdbc.Driver"
                jdbc_connection_string => "jdbc:mysql://localhost:3306/test"
                jdbc_user => "root"
                jdbc_password => ""
                statement => "SELECT * FROM persons"
                jdbc_paging_enabled => "true"
                jdbc_page_size => "50000"
                }
                }
                output{
                elasticsearch { codec => json hosts => ["localhost:9200"] index => "persons" }
                stdout { codec => rubydebug }
                }
Database Name Test
Datable Table persons
Index Persons
Logs
            C:\logstash-6.5.1\bin>logstash -f logstash-sample.conf
            Sending Logstash logs to C:/logstash-6.5.1/logs which is now configured via log4j2.properties
            [2018-11-30T18:10:52,868][WARN ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
            [2018-11-30T18:10:52,883][INFO ][logstash.runner          ] Starting Logstash {"logstash.version"=>"6.5.1"}
            [2018-11-30T18:10:53,550][INFO ][logstash.config.source.local.configpathloader] No config files found in path {:path=>"C:/logstash-6.5.1/bin/logstash-sample.conf"}
            [2018-11-30T18:10:53,559][ERROR][logstash.config.sourceloader] No configuration found in the configured sources.
            [2018-11-30T18:10:53,894][INFO ][logstash.agent           ] Successfully started Logstash API endpoint {:port=>9600}
Request GET
http://localhost:9200/persons/_search/?pretty
            {
                "error": {
                    "root_cause": [
                        {
                            "type": "index_not_found_exception",
                            "reason": "no such index",
                            "resource.type": "index_or_alias",
                            "resource.id": "persons",
                            "index_uuid": "_na_",
                            "index": "persons"
                        }
                    ],
                    "type": "index_not_found_exception",
                    "reason": "no such index",
                    "resource.type": "index_or_alias",
                    "resource.id": "persons",
                    "index_uuid": "_na_",
                    "index": "persons"
                },
                "status": 404
            }
Any suggestion is most welcome