data-generation

I have been looking into how to generate test data in our database so that we can test CRUD operations without running into foreign key constraint issues on insert. The approach I decided to take was through Visual Studio 2010 Ultimate's Data Generator feature. Setting up the Data Generator plan for our specific database wasn't too difficult, but I am being held up by a data type issue. Specifically, one of the columns in the database is set to be of type Bit; however, the data generator plan is setting the data type to int. From here, the only generator options I can select are Data bound

Given a regexp, I would like to generate random data x number of time to test something. e.g. >>> print generate_date('\d{2,3}') 13 >>> print generate_date('\d{2,3}') 422 Of course the objective is to do something a bit more complicated than that such as phone numbers and email addresses. Does something like this exists? If it does, does it exists for Python? If not, any clue/theory I could use to do that? Pyparsing includes this regex inverter , which returns a generator of all permutations for simple regexes. Here are some of the test cases from that module: [A-C]{2}\d{2} @|TH[12] @(@|TH[12]

I would like to know if a fake data generator exists for Java. In Perl exists Data::Faker and there's a port to Ruby called faker , for JavaScript faker.js . Someone know about a fake data generator for Java, that can provide random names, phone number, P.O. box number, etc... If you're using Hibernate, try HibernateMock . Also: ThinkUI Benerator MariuszS Try jFairy . This is new project in early stage. Fairy fairy = Fairy.create(); Person person = fairy.person(); System.out.println(person.fullName()); // Chloe Barker System.out.println(person.email()); // barker@yahoo.com System.out.println

How do I return a rowset consisting of the last four years based on the current date? If this query runs on 12/31/2010 it should return: 2007 2008 2009 2010 But if it is run on 1/1/2011 it should return: 2008 2009 2010 2011 Here's what I started with, two queries that return the starting year. I prefer the second as converting to string feels a bit dirty to me. SELECT TO_CHAR(TRUNC(sysdate, 'YY') - INTERVAL '3' YEAR, 'YYYY') FROM DUAL; SELECT EXTRACT (YEAR FROM sysdate) - 3 FROM DUAL; But I don't know how to generate rows to flesh this out. In SQL Server I'd use a CTE as in the fn_nums

I have a dataset consisting of 100k unique data records, to benchmark the code, I need to test on data with 5 million unique records, I don't want to generate random data. I would like to use the 100k data records which I have as the base dataset and generate the remaining data similar to it with unique values for certain columns, How can I do that using python or Scala ? Here's the sample data latitude longitude step count 25.696395 -80.297496 1 1 25.699544 -80.297055 1 1 25.698612 -80.292015 1 1 25.939942 -80.341607 1 1 25.939221 -80.349899 1 1 25.944992 -80.346589 1 1 27.938951 -82.492018 1

I would like to receive suggestions on the data generators that are available, for SQL server. If posting a response, please provide any features that you think are important. I have never used a application like this, so I am looking to be educated on the topic. Thank you. (My goal is to fill a database with 10,000+ records in each table, to test an application.) I've rolled my own data generator that generates random data conforming to regular expressions. It turned into a learning project (under development) and is available at github . Galwegian I have used the data generator in the past.