![]() These test data are called mock data because they generally simulate realistic use cases of the system in the development phase. The use of mock data in this phase is to isolate and focus on the functionality being examined, rather than on the behavior of external dependencies. When developing a unit, process, service, or application, unit testing is an essential step. Mock data, on the other hand, is fake data used to examine a specific piece of software. In software development, mocking involves providing objects that simulate the behavior of actual objects. However, it is fast enough for our purposes.15 minute read JSON Generator: How To Create Dummy JSON Data linkImportance of Mock Data in Software Development This technique represents the easiest way of representing JSON nested objects, though it isn’t the fastest way of doing it because it relies on correlated subqueries. ![]() We’ll use the query in Listing 1 to convert our relational NAD data into a JSON string of this format, using the FOR JSON function. As an example, I’ll use this common format of names and addresses (styled using the JSON Formatter and Validator): When you’ve fine-tuned the SQL Data Generator output to your heart’s content, you are ready to generate the JSON Converting the data to JSONįirst, you need a good idea of the format in which you want the JSON data. Unfortunately, I can’t provide my copy of the SQL Generator project file as it has my credentials in it, but I’ve written articles that show you how to generate data, adapt the data format to suit your needs using regular expressions and python, as well as to automate data generation for development and test databases using PowerShell. So, we create and test a build script for this database, and once we have it producing a viable database, fill it with data using a SQL Data Generator project file. We’ve also allowed notes to be applied to several people, so that we can attach arbitrary information to them. This design accounts for the fact that several people can share the same address, and one person can have several addresses (invoice address, work, home, and so on.). Other than that, though, this is a standard design for a NAD database it records changes in address so that you track the address at any time. Certainly, doing it this way might give a passing hacker some momentary but unnecessary excitement. Of course, we wouldn’t normally want to hold the credit cards like this, and then pass the data around to JSON. We’ll use the same sample Customers database that we’ve used throughout our series of SQL Data Generator “how-to” articles, but with an added CreditCard table. We need to start by creating a database that provides the relational version of the metadata and data we need. Filling the Customers SQL Server database In other words, we just add an extra phase on top of producing a version of your database filled with fake data, and because we are scripting the whole process using PowerShell, this extra processing is of no consequence. The solution in this article builds a SQL Server database, fills it with sample data using SQL Data Generator, extracts the data into a JSON data file, using FOR JSON, and then drops the database. Maybe you need a sample data file to test a new web service. However, what if instead of a SQL Server database full of fake data, you need a JSON file? Perhaps you need to run some tests in MongoDB, or Azure Cosmos DB. SQL Data Generator is adept at filling SQL Server databases with ‘spoof’ data, for use during development and testing activities. He is a regular contributor to Simple Talk and SQLServerCentral. Phil Factor (real name withheld to protect the guilty), aka Database Mole, has 30 years of experience with database-intensive applications.ĭespite having once been shouted at by a furious Bill Gates at an exhibition in the early 1980s, he has remained resolutely anonymous throughout his career.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |