[...]... Sara Don Judy Yael Sven Paul Russell Maria Zoya Davis Funk Lew Peled Buck Suurs King Cameron Dolgopyatova 2 2 2 2 2 2 2 2 2 Don Don Don Don Don Don Don Don Don Funk Funk Funk Funk Funk Funk Funk Funk Funk (81 row(s) affected) In a self join, aliasing tables is not optional Without table aliases, all column names in the result of the join would be ambiguous Producing Tables of Numbers One situation in... you need additional support, email Microsoft Press Book Support at mspinput @microsoft. com Please note that product support for Microsoft software is not offered through the addresses above Introduction  xxv We Want to Hear from You At Microsoft Press, your satisfaction is our top priority, and your feedback our most valuable asset Please tell us what you think of this book at: http://www .microsoft. com/learning/booksurvey... Sales.OrderDetailsAudit AS ODA ON OD.orderid = ODA.orderid AND OD.productid = ODA.productid WHERE ODA.columnname = N'qty'; Because the relationship is based on multiple attributes, the join condition is composite Non-Equi Joins When a join condition involves only an equality operator, the join is said to be an equi join When a join condition involves any operator besides equality, the join is said to be a non-equi join... is short, and we read every one of your comments and ideas Thanks in advance for your input! Stay in Touch Let’s keep the conversation going! We’re on Twitter: http://twitter.com/MicrosoftPress xxvi  Introduction C hapter 3 Joins T he FROM clause of a query is the first clause to be logically processed, and within the FROM clause, table operators operate on input tables Microsoft SQL Server supports... Chapter 5, “Table Expressions,” covers derived tables, common table expressions (CTEs), views, inline table-valued functions, and the APPLY operator Chapter 6, “Set Operators,” covers the set operators UNION, INTERSECT, and EXCEPT Chapter 7, “Beyond the Fundamentals of Querying,” covers window functions, pivoting, unpivoting, and working with grouping sets Chapter 8, “Data Modification,” covers inserting,... “Transactions and Concurrency,” covers concurrency of user connections that work with the same data simultaneously; it covers concepts including transactions, locks, blocking, isolation levels, and deadlocks Chapter 10, “Programmable Objects,” provides an overview of the T-SQL programming capabilities in SQL Server The book also provides an appendix, “Getting Started,” to help you set up your environment,... King King King King King King Cameron Cameron Cameron Cameron Cameron Cameron Cameron Dolgopyatova Dolgopyatova Dolgopyatova Dolgopyatova Dolgopyatova Dolgopyatova Dolgopyatova Dolgopyatova If it is still not clear to you what this query does, try to process it one step at a time with a smaller set of employees For example, suppose that the Employees table contained only employees 1, 2, and 3 First,... based on the ON predicate, and outer rows are rows that don’t An inner join returns only inner rows, whereas an outer join returns both inner and outer rows A common question about outer joins that is the source of a lot of confusion is whether to specify a predicate in the ON or WHERE clause of a query You can see that with respect to rows from the preserved side of an outer join, the filter based on. .. commonly required when you need to join two tables based on a primary key–foreign key relationship and the relationship is composite; that is, based on more than one attribute For example, suppose you have a foreign key defined on dbo.Table2, columns col1, col2, referencing dbo.Table1, columns col1, col2, and you need to write a query that joins the two based on a primary key–foreign key relationship... COMMITTED Isolation Level 311 The REPEATABLE READ Isolation Level 313 The SERIALIZABLE Isolation Level 314 Isolation Levels Based on Row Versioning 316 Summary of Isolation Levels 323 Deadlocks 323 Conclusion .