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1)       How do you create ODBC query?

a)        We can create ODBC query using the database checkpoint wizard. It provides with option to create an SQL file that uses an ODBC DSN to connect to the database. The SQL File will contain the connection string and the SQL statement.

 2)       How do you record a data driven test?

a)        We can create a data-driven testing using data from a flat file, data table or a database.

                                                               i.      Using Flat File: we actually store the data to be used in a required format in the file. We access the file using the File manipulation commands, reads data from the file and assign the variables with data.

                                                              ii.      Data Table: It is an excel file. We can store test data in these files and manipulate them. We use the ddt_*  functions to manipulate data in the data table.

                                                            iii.      Database: we store test data in the database and access these data using db_* functions.


 3)       How do you convert a database file to a text file?

a)        You can use Data Junction to create a conversion file which converts a database to a target text file.

4)       How do you parameterize database check points?

a)        When you create a standard database checkpoint using ODBC (Microsoft Query), you can add parameters to an SQL statement to parameterize the checkpoint. This is useful if you want to create a database checkpoint with a query in which the SQL statement defining your query changes.


 5)       How do you create parameterize SQL commands?

a)        A parameterized query is a query in which at least one of the fields of the WHERE clause is parameterized, i.e., the value of the field is specified by a question mark symbol ( ? ). For example, the following SQL statement is based on a query on the database in the sample Flight Reservation application:

                                                                i.      SELECT Flights.Departure, Flights.Flight_Number, Flights.Day_Of_Week FROM Flights Flights WHERE (Flights.Departure=?) AND (Flights.Day_Of_Week=?)


                                     SELECT defines the columns to include in the query.

                                     FROM specifies the path of the database.

  WHERE (optional) specifies the conditions, or filters to use in the query.

  Departure is the parameter that represents the departure point of a flight.

  Day_Of_Week is the parameter that represents the day of the week of a flight.

b)        When creating a database checkpoint, you insert a db_check statement into your test script. When you parameterize the SQL statement in your checkpoint, the db_check function has a fourth, optional, argument: the parameter_array argument. A statement similar to the following is inserted into your test script:


db_check("list1.cdl", "dbvf1", NO_LIMIT, dbvf1_params);

 The parameter_array argument will contain the values to substitute for the parameters in the parameterized checkpoint.





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