We offer discounts when you buy multiple licenses. Contact us at [email protected] for more information. Trial expired message. If your trial period has expired and you are looking to purchase or you require more time to evaluate then please contact [email protected]. Foreign keys. When SQL Data Generator automatically assigns generators to the columns in a new project or new schema, the Foreign Key generator is assigned to all columns that have foreign key constraints. You cannot change the generator, but you can change the settings for the Foreign Key generator. Sep 21, 2015 SQL Data Generator assigns the Foreign Key generator to Column 1 and Column 2. You can change the settings for these columns individually. For a composite foreign key, the generator settings are the same for each of the columns; if you change the settings on one column, they are automatically changed on the others. The Coffee Mug and the Database: which is filled quicker? 91% of Fortune 100 companies use Red Gate CASE STUDY SQL DATA GENERATOR. Case Study SQL Data Generator 2 In less than the time it took me to get my coffee, I had a database. The range of data, maintaining foreign key links, ease.
From http://blogs.lessthandot.com/index.php/DataMgmt/DataDesign/missing-foreign-key-constraints:
References are at the heart of a database. It is possible to create a beautiful database with perfectly working front end code that always, 100% of the time, does the right thing with your data. But, writing code is hard. Very hard! Your data is often the most important asset you own. You need to protect it with every bit of technology you can find. At the heart of protecting your data is referential integrity. What does this mean? It means that you shouldn’t be missing data, ever!
The test will check for columns that have ID in the name of the column where that column is not part of a primary key or foreign key constraint. Often times, this represents a missing constraint, but not always.
Red Gate Data Generator Foreign Key Examples
How to correct it: Correcting this problem seems simple at first. Just declare your foreign keys, right? Well, it’s not so simple. You see, there could be code running that deletes all the necessary data from the related tables. If you have code that deletes data in related tables in the wrong order, you will get referential constraint errors. Similar problems can occur with updates and inserts. The order in which you do things is important when you have referential constraints.