Can i delete pubs database

The first value is the logical name of the database — in this case, pubs. The second set of values is the name of the files associated with that database. Remember, you can have more than one set of files for a single database, using FileGroups. You can learn more about those here. Another interesting method of installing a database is to attach it. This method is very simple and fast, but you need to remember that you have to detach the database before you attach it somewhere else.

The pubs database is a great one to use for experimenting with this feature. You can detach it from the same system you attach it to. The best way to do this is to right-click the database name and then to select Properties from the menu that appears.

The Recovery Model sets how the database uses the transaction log, and how the backups and recoveries are affected. You can read more about that here.

The next option is trickier. You can change that option to the currently installed version of SQL Server or a few levels lower. This option affects certain behaviors, such as identifier names and so on. In this case I change the Compatibility Level to the newer version and run my code against it. Now that the database installed, I change the options to what I want and immediately run that backup I mentioned earlier. With the pubs database installed, I want to explore it a little.

I then dig a little deeper and see the data types and other internals. There are a few tools that we have available to discover more about the database. I sometimes start with database diagrams. So why use it at all? You can even right-click various parts of the diagram to show more information like the column names and types and print out the document. To do that, I simply navigate to pubs and click the Database Diagrams node. I get a message stating that the system needs to create some meta-data to enable the diagrams for the database, and I answer yes to that.

The next two methods are available in both pre and post SQL Server Here is a query that asks the sysobjects table for the names of the objects, ordered by the types. For SQL Server and higher, you can use the new system catalog views. They are much easier to work with, and you can find their names by running this query in any database:.

With those names in hand, you can go after the particular objects you want to learn more about, such as sys. In fact, many of these new catalog views do just that. Just query each one to find out what they contain. The keys here are the relationships. But for some examples I just want a smaller database. Those were small databases, that were still understandable for starters.

But if you try to find them, you need to download an MSI file that extracts the files to your local system. It contains the. MDF and. MSI installer. This is a way to change database options in SQL So after deleting these from the script, it works perfect.

List the title IDs and quantity of all books that sold more than 30 copies. Display a list of all last names of the authors who live in Ontario ON and the cities where they live. Display all rows that contain a 60 in the payterms field. Use the Sales table. Display all authors whose first names are five letters long , end in O or A, and start with M or P. Use the Roysched table.

Use the Title table. Show how many books have assigned prices. Display a list of cookbooks with the average cost for all of the books of each type.

What does union-compatible mean, and how would you check for this condition? Write the syntax for each. List the query output. What is a cross join? Give an example of its syntax. Explain these three join types: left outer join right outer join full outer join What is a subquery, and what are its basic characteristics? What is a correlated subquery?

Give an example. Given the information in question 11, what would be the query output for the following? Show values. Advanced Questions Using Joins Display a list of all titles and sales numbers in the Books and Sales tables, including titles that have no sales. Use a join. Save it as a view named: Published Authors. Save it as a view titled: AuthorsView.

Display the stores that did not sell the title Is Anger the Enemy? The assumption here is that the title column requires contents containing two random words. This is done by substituting the title column with a concatenation of two random words from the Random Dictionary Words dataset using a Row-Internal Synch. You should open up this rule by double clicking on it with the mouse to understand how it is constructed. Note: It is important to remember that the Data Masker software is multi-threaded.

It can, and will, execute multiple rules simultaneously. Since they are both operating on the same table and column, rule must only execute after rule completes - otherwise the actions of rule could overwrite the actions of rule The dependency relationship used in rule groups forces rule to execute after rule completes.

It is also possible to use rule blocks for this purpose. For example, rules could be placed in a higher rule block than rule and the same result would have been achieved. The order in which the rules are visible on the screen is not necessarily the order in which they will execute. The execution order always needs to be explicitly specified using Dependencies and Rule Blocks. A dependency relationship was chosen in this case to emphasize that the rules are really just two aspects of the same masking operation.