Handling Databases in Katalon Studio

With custom keywords, you can connect to a database as well as perform other data queries.

Below is a sample demonstrating how to create custom keywords for:

• Establishing database connection
• Executing data query
• Closing the connection

private static Connection connection = null;

    /**
     * Open and return a connection to database
     * @param dataFile absolute file path  
     * @return an instance of java.sql.Connection
     */
    @Keyword
    def connectDB(String dataFile){
        //Load driver class for your specific database type
        Class.forName("org.sqlite.JDBC")
        String connectionString = "jdbc:sqlite:" + dataFile
        if(connection != null && !connection.isClosed()){
            connection.close()
        }
        connection = DriverManager.getConnection(connectionString)
        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
     */
    @Keyword
    def executeQuery(String queryString) {
        Statement stm = connection.createStatement()
        ResultSet rs = stm.executeQuery(queryString)                
        return rs
    }

    @Keyword
    def closeDatabaseConnection() {
        if(connection != null && !connection.isClosed()){
            connection.close()
        }
        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
     */
    @Keyword
    def execute(String queryString) {
        Statement stm = connection.createStatement()
        boolean result = stm.execute(queryString)
        return result
    }

You can add the sample code above to your keyword file and modify the details as appropriated.