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I ll end this section on data types by showing you a few additional data types that you might nd useful Binary Data Types These data types are binary and varbinary They are used to store strings of bits, and the values are entered and displayed using their hexadecimal (hex) representation, which is indicated by a pre x of 0x So a hex value of 0x270F corresponds to a decimal value of 9,999 and a bit string of 0010011100001111 In hex, each two displayed characters represent a byte, so the value of 0x270F represents 2 bytes You need to decide whether you want your data to be xed or variable length, and you can use some of the same considerations discussed previously for deciding between char and varchar to make your decision The maximum length of binary or varbinary data is 8,000 bytes.

bit Data Type The bit data type can store a 0 or a 1 and can consume only a single bit of storage space However, if there is only one bit column in a table, it will take up a whole byte Up to eight-bit columns are stored in a single byte LOB Data Types SQL Server 2008 allows you to de ne columns with the MAX attribute: varchar(MAX), nvarchar(MAX), and varbinary(MAX) If the number of bytes actually inserted into these columns exceeds the maximum of 8,000, these columns are stored using a special storage format for LOB data The special storage format is the same one as used for the data types text, ntext, and image, but because those types will be discontinued in a future version of SQL Server, it is recommend that you use the variable-length data types with the MAX speci er for all new development.

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Practice Files Before you can complete the exercises in this chapter, you need to copy the book s practice files to your computer. A complete list of practice files is provided in Using the Practice Files at the beginning of this book. For each exercise that has a practice file, simply browse to where you saved the book s practice file folder. Important If you are running Project Professional, you may need to make a one-time setting change. This helps ensure that the practice files you work with in this chapter do not affect your Project Server data. For more information, see Appendix C, Using the Practice Files if Connected to Project Server.

Part V:

The varchar(MAX) (or text) data type can store up to 2^31 1 non-Unicode.

When the HttpApplication object in charge of the request has figured out the proper handler, it creates an instance of the handler factory object. For a request that targets a page, the factory is a class named PageHandlerFactory. To find the appropriate handler, HttpApplication uses the information in the <httpHandlers> section of the configuration file as a complement to the information stored in the IIS handler mappings list, as shown in Figure 5-3.

Now imagine an OLAP cube with two dimensions . If you want to specify a value from the cube, you specify a single member from each dimension . This double value is the coordinate for the cell . In the following hypothetical cube, the coordinate for the marked cell is ([March],[Road Bikes]) .

1. False. Cows are held in fields, but structures are not. A field is a member of a structure that holds data. 2. True. Whenever you have a number of related items, you should think about creating a structure to hold them.

Part III:

For dat a definit ion SQL st at em ent s t o funct ion proper ly , such as t hose in t he But t on1_Click and But t on2_Click event procedures, you m ust r un t hem fr om a login wit h appropr iat e per m ission t o creat e dat abase obj ect s on t he SQL Ser ver inst ance t o which you connect . See Chapt er 7 for det ailed coverage of SQL Ser ver secur it y, including logins and per m issions. Alt ernat ively, y ou can use t he SQL Serv er sa login. Howev er, t his is poor applicat ion design because it allows user s unrest r ict ed aut horit y on a SQL Server.

1. Switch to SQL Server Management Studio (SSMS) . In Object Explorer, expand the Dimensions folder, right-click the Geography MOLAP dimension, and select Process . The Process Dimension dialog box is displayed .

51 52 strCmd = STSADM_PATH & " -o backup -url """ & strUrl & _ """ -filename """ & strFileName & """ overwrite"

GRANT BACKUP DATABASE, CREATE TABLE, CREATE VIEW TO [SQLUser] WITH GRANT OPTION;

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