get tables names through jdbc connectors

RetreiveTables.groovy

import java.sql.Connection
import java.sql.DatabaseMetaData
import java.sql.DriverManager

def mysql_connection_string = 'jdbc:mysql://toto.com/tata_db'

// If you are on dev you can disable ssl certificate verification
def sqlserver_connection_string = 'jdbc:sqlserver://42.42.42.42:1433;databaseName=tata_db;useSSL=false;integratedSecurity=false;encrypt=true;trustServerCertificate=true'

Connection con = DriverManager.getConnection(sqlserver_connection_string, 'John', 'Doe')
DatabaseMetaData dbMetaData = con.getMetaData()
new String[] types = {"TABLE"}
rs = dbMetaData.getTables(null, null, "%", types)
while (rs.next()) {
  println rs.getString("TABLE_NAME")
}