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How to Perform Database Testing Using Katalon Studio

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How to Perform Database Testing Using Katalon Studio

Get sample code demonstrating how to establish a database connection, execute a query, and close the connection in order to create custom keywords for database testing.

· Database Zone ·
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Read the 2019 State of Database DevOps Report for the very latest insights

Katalon Studio allows users to create custom keywords to address specific needs. With custom keywords, you can connect to databases and perform database testing. This tutorial describes details on how to create custom keywords for database testing in Katalon Studio.

Below is a code sample demonstrating how to:

  • Establish a database connection
  • Execute a query
  • Close the connection
package com.database
import java.sql.DriverManager
import java.sql.ResultSet
import java.sql.Statement
import com.kms.katalon.core.annotation.Keyword
import com.mysql.jdbc.Connection
public class DemoMySql {
 private static Connection connection = null;
 * Open and return a connection to database
 * @param dataFile absolute file path
 * @return an instance of java.sql.Connection
 //Establishing a connection to the DataBase
 def connectDB(String url, String dbname, String port, String username, String password) {
  //Load driver class for your specific database type
  String conn = "jdbc:mysql://" + url + ":" + port + "/" + dbname
  //String connectionString = "jdbc:sqlite:" + dataFile
  if (connection != null && !connection.isClosed()) {
  connection = DriverManager.getConnection(conn, username, password)
  return connection
 * execute a SQL query on database
 * @param queryString SQL query string
 * @return a reference to returned data collection, an instance of java.sql.ResultSet
 //Executing the constructed Query and Saving results in resultset
 def executeQuery(String queryString) {
  Statement stm = connection.createStatement()
  ResultSet rs = stm.executeQuery(queryString)
  return rs
 //Closing the connection
 def closeDatabaseConnection() {
  if (connection != null && !connection.isClosed()) {
  connection = null
 * Execute non-query (usually INSERT/UPDATE/DELETE/COUNT/SUM...) on database
 * @param queryString a SQL statement
 * @return single value result of SQL statement
 def execute(String queryString) {
  Statement stm = connection.createStatement()
  boolean result = stm.execute(queryString)
  return result

Tip: Press Ctrl + Shift + o to automatically import missing libraries in test scripts.

The custom keywords file will look like the following:

Katalon Custom Keywords

You can add the sample code above your keyword file and modify the details as appropriate. Refer to these links for the formats of database connection strings:

Use Defined Keywords in Test Cases for DB Testing

1. Create new custom keywords for database connection (see above).

2. Copy the DB script provided above and paste it into the new keyword editor as illustrated below:Katalon Defined Keywords

For more tutorials about automation testing tools, please visit Katalon Studio's Tutorials.

Read the 2019 State of Database DevOps Report for latest insights into DevOps adoption among SQL Server professionals, and the benefits and challenges of including the database in DevOps initiatives

database ,database testing ,keywords ,tutorial ,katalon studio

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