... database query, but this need not be the case The point of the spectrum is that there is a continuum from "database" to "knowledge base", and that the supposed limitations of one arise from the ... generalize to the other The fault lies in the inadequate theories, not in the problem environment, and radically changing the problem environment will not guarantee the development of better theories ... that the interpretive process of mapping from language concepts onto database concepts is sufficiently unlike the interpretation procedures for other uses of natural language that the db domain is...
Ngày tải lên: 21/02/2014, 20:20
... that the database should always make the final decision on whether any given piece of data is allowed So does business logic belong in the database? The answer is a definite “maybe.” As a database ... the database and takes control of all communications to and from the database While this approach would work in theory, there are a few issues First of all, this approach completely ignores the ... parent Rather than the bookstore having the books, the relationship between the entities is expressed the other way around, where the books maintain a foreign key that points back to the bookstore:...
Ngày tải lên: 05/10/2013, 08:48
Executing Commands that Modify Information in the Database
... DisplayRow() that retrieves and displays the details of a specified row from the Customers table DisplayRow() is used in the program to show the result of the INSERT and UPDATE statements Listing ... number of rows affected by the command In this example, the value returned is the number of rows added to the Customers table, which is since one row was added by the INSERT statement Let's take ... was removed by the DELETE statement Listing 8.7 illustrates the use of the ExecuteNonQuery() method to execute the INSERT, UPDATE, and DELETE statements shown in this section This program features...
Ngày tải lên: 24/10/2013, 08:15
The experience is the Marketing
... of their experiences This Place so engages guests that visits average over four hours – and you know the more time they spend, the more money they spend The American Girl Place achieves this ... precisely because it has so thoroughly abandoned the “store” paradigm (Proof? The question visitors already inside the Place most frequently ask of the concierge in the foyer is, “Where’s the ... extending the dramatic structure of the experience online, moving from the real to the virtual and – upon the next visit when the guest can request his past bookmarks be downloaded for him right then...
Ngày tải lên: 25/10/2013, 09:15
The World Is Flat
... center "It is twenty-four by seven You work in the day, and then the night, and then the next morning." But the working environment, he insisted, "is not the tension of alienation It is the tension ... level If you put The Lexus and the Olive Tree and this book together, the broad historical argument you end up with is that that there have been three great eras of globalization The first lasted ... standardized protocol, it is no problem to view the images anywhere in the world I assume that the radiologists on the other end must have trained in [the] US and acquired the appropriate licenses...
Ngày tải lên: 29/10/2013, 11:15
Tài liệu Troubleshooting SQL 2005: Opening the Database Administrator’s Toolbox doc
... SQL carte blanche to carry out these tasks, but it is simple to stop their execution and simply have the advisor script the tasks out for further review While there is rarely a silver bullet to ... synchronized in Profiler Database Tuning Advisor One of the most common questions asked when discussing performance tuning in SQL is “Where I start?!” The Database Tuning Advisor may be a great place ... simple query This statement returns the current values of the performance counters for SQL 740 rows of dynamic information gathered from the exact time the query is run Everything from the number...
Ngày tải lên: 10/12/2013, 14:15
Tài liệu The Experience IS the Marketing pdf
... of their experiences This Place so engages guests that visits average over four hours – and you know the more time they spend, the more money they spend The American Girl Place achieves this ... precisely because it has so thoroughly abandoned the “store” paradigm (Proof? The question visitors already inside the Place most frequently ask of the concierge in the foyer is, “Where’s the ... extending the dramatic structure of the experience online, moving from the real to the virtual and – upon the next visit when the guest can request his past bookmarks be downloaded for him right then...
Ngày tải lên: 12/12/2013, 18:15
Tài liệu Using Stored Procedures to Add, Modify, and Remove Rows from the Database phần 1 pdf
... record the attempt to delete the row from the Products table In this example, you must use SET NOCOUNT ON before performing the INSERT into the ProductAudit table, as shown in Listing 11.7 Listing ... @OldUnitPrice Because the WHERE clause contains the old column values in the UPDATE statement of this procedure, the UPDATE uses optimistic concurrency described earlier This means that one user ... deleted' ) By using SET NOCOUNT ON before the INSERT, only the number of rows affected by the DELETE statement is returned, and the DataAdapter therefore gets the correct value Transact-SQL also has...
Ngày tải lên: 14/12/2013, 13:15
Tài liệu Using Stored Procedures to Add, Modify, and Remove Rows from the Database phần 2 doc
... step This is because the ProductID is automatically generated by the database when the new row is pushed to the database by the Update() method in step When the Update() method is called, the AddProduct4() ... procedure is run to add the new row to the Products table The database then generates a new ProductID for the row, which is then returned by the AddProduct4() stored procedure You can then read the ... constant These are the DataColumn values after they are changed When the Update() method is called in step 4, the UpdateProduct() stored procedure is run behind the scenes to perform the update The...
Ngày tải lên: 14/12/2013, 13:15
Tài liệu Changing the Database for an Open Connection pdf
... specifies the name of the database to use in place of the current database The name of the database must be valid or an ArgumentException will be raised If the connection is not open when the method is ... InvalidOperationException is raised A provider-specific exception is raised if the database cannot be changed for any reason The Database property of the Connection object is updated dynamically and returns the current ... current database for an open connection or the name of a database that will be used by a closed connection when it is opened When the Connection is closed after ChangeDatabase( ) is called, the database...
Ngày tải lên: 14/12/2013, 18:16
Tài liệu The Internet is going Local pptx
... businesses, if they build a site at all, build it about themselves "About Us" The president and key personnel The history how long they've been in business Awards they've won The product line ... your high rankings at the Search Engines (and other techniques) They convert into income 17 The more information you publish, the more visitors find your site and are PREsold The process feeds upon ... information) about the niche that your business fills Why? Because (and this is important) People search for information, for solutions they not search for YOU If they knew you existed, they would...
Ngày tải lên: 24/12/2013, 02:15
Tài liệu 11) The reader is not your friend pdf
... paper, the reader is not your friend so don’t be too friendly Don't talk about yourself Instead of: Google Sites is my favorite way to make a free website Write: Google Sites is one of the most ... from other styles of writing In an academic paper, it is not appropriate to talk about yourself You should not give your opinions or tell your feelings It is also not ok to talk about the reader ... w3ll How is your academic writing class going? Are there any cute boys there I hope not :( When you are fr33, letz go out for coffee, 0k? ur friend, H4n5 A freindly letter It’s nice, isn’t...
Ngày tải lên: 20/01/2014, 06:20
Tài liệu Creating a Table in the Database from a DataTable Schema docx
... control whether the new table is created The second DDL command uses the CREATE TABLE statement to create the table in the database The code iterates over the collection of the columns in the DataTable ... check if the table already exists in the database and if it does, abort execution since your table might contain important data If that is the case, return the results of the EXISTS query to the calling ... schema to retrieve the name and the maximum length of the column and whether the column is an identity column or allows null values A method is called to map the NET data types of the DataTable to...
Ngày tải lên: 21/01/2014, 11:20
Tài liệu Implement the Methods That Update the Database pptx
... in writing the new values to the data row, ' end the editing block, and then write the changes to the ' database If you have a problem writing to the DB, then ' reject the changes to the row and ... therefore, the only necessary action is to dispose of the class-level variables If the object instance is an existing record, the delete method of the data row is called Finally, the WriteChangesToDB ... The behavior of the Delete method also changes based on the value of the internal newrecord flag If the object instance is a new record, you don't need to delete the row from the database; therefore,...
Ngày tải lên: 21/01/2014, 12:20
Tài liệu The life is at the end of the road doc
... The life is at the end of the road 2010 so sánh số với nước láng giềng Campuchia có 6%, Lào có 13% Thái Lan 9% Theo GS TS Lê Đình Quang, viện nghên cứu ... hứng gió rôto [m2] ρV3 [W/m2] Công suất trục rôto tính theo công thức: P = Think green and action green Page 2 The life is at the end of the road 2010 Một số lưu ý lắp đặt tua bin gió Nói ... thiết kế cho nhà rẻ b ó máy phát điện NLG tùy theo nhu cầu s dụng y n G sử Thin nk green an nd action gr reen Pa age 4 The life is at the end of the road 2010 Các bước để thiết kế hệ thống...
Ngày tải lên: 25/01/2014, 09:20
Tài liệu SOFT CINEMA navigating the database docx
... Extending the genre of a ‘city film’ from the 1920s, the database is constructed to capture the iconography of a ‘global city’ The second is a music database created by the composer George Lewis as ... with Lewis’s database, the film soundtrack uses tracks from the CD The Quick and The Dead by DJ Spooky and Scanner The CD represents the meeting between different database imaginaries’ of these ... by side The motion graphics react to the video but they also hold their own In fact they form a parallel film that follows the same narrative but visualizes its themes and the feelings of the characters...
Ngày tải lên: 19/02/2014, 10:20
Tài liệu Semantic Integration Research in the Database Community: A Brief Survey pdf
... again the databases in Figure Suppose we have created the mappings, and have used them to transfer the house listings from database S and another database U (not shown in the figure) to those of database ... computes the similarity between two schema elements based on the similarity of the characteristics of the elements and the similarity of related elements The ARTEMIS and the related MOMIS (Castano ... 2: The schemas of two relational databases S and T on house listing, and the semantic correspondences between them Database S consists of two tables: HOUSES and AGENTS; database T consists of the...
Ngày tải lên: 19/02/2014, 12:20
Tài liệu Dynamic Resource Allocation for Database Servers Running on Virtual Storage pptx
... example, if the entire disk was given to the application, i.e., ρd = 1, then the storage access latency is equal to the underlying disk access latency On the other hand, if the application is given ... scheduling and the disk access latency, N is the number of application threads, X is the throughput, and z is the think time of each application thread issuing requests to the disk 7th USENIX ... hit in the storage cache or ii) miss in the storage cache, hence access the disk 76 Assuming that the access latency for a hit/miss in the storage cache is approximately the network/disk latency,...
Ngày tải lên: 19/02/2014, 12:20