Help With Database Connection

Hello Team,

I am trying to use a database connection to work with test data. I was able to create a database connection but when I run the steps I am not getting an expected output.

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Here is the script I have:

import static com.kms.katalon.core.checkpoint.CheckpointFactory.findCheckpoint

import static com.kms.katalon.core.testcase.TestCaseFactory.findTestCase

import static com.kms.katalon.core.testdata.TestDataFactory.findTestData

import static com.kms.katalon.core.testobject.ObjectRepository.findTestObject

import com.kms.katalon.core.checkpoint.Checkpoint as Checkpoint

import com.kms.katalon.core.cucumber.keyword.CucumberBuiltinKeywords as CucumberKW

import com.kms.katalon.core.mobile.keyword.MobileBuiltInKeywords as Mobile

import com.kms.katalon.core.model.FailureHandling as FailureHandling

import com.kms.katalon.core.testcase.TestCase as TestCase

import com.kms.katalon.core.testdata.TestData as TestData

import com.kms.katalon.core.testobject.TestObject as TestObject

import com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords as WS

import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI

import internal.GlobalVariable as GlobalVariable

CustomKeywords.‘database.DB.connectDB’(‘katalon-studio-test-database.uquwiowhwowt.us-west-10.rds.amazonaws.com’, ‘katalon_qa_database’,

‘3306’, ‘qa_automation’, ‘uqiquiqyqtqyqu’)

first_name = CustomKeywords.‘database.DB.executeQuery’(‘SELECT FirstName FROM FirstNameLastName ORDER BY RAND() LIMIT 1;’)

test = WebUI.concatenate((([first_name]) as String[]))

WebUI.comment(test)

CustomKeywords.‘database.DB.closeDatabaseConnection’()

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I am expecting that this should return a string but instead, I am getting com.mysql.jdbc.JDBC42ResultSet@73dce0e6

The custom keyword I created is from https://docs.katalon.com/katalon-studio/tutorials/connect_db_gui_testing.html