pipeline { 
    agent any 
    options {
        skipStagesAfterUnstable()
    }
    stages {
        stage('Build') { 
            steps {
                import groovy.sql.Sql
                Class.forName("com.mysql.jdbc.Driver")
                def sql = Sql.newInstance("jdbc:mysql://mysql:3306/test_db", "user","passwd", "com.mysql.jdbc.Driver")
                def rows = sql.execute "select count(*) from test_table;"
                echo rows.dump()
            }
        }
    }
}