Tài liệu MASTERING SQL SERVER 2000- P8 pdf

CHAPTER 9 • USING SQL SERVER ENTERPRISE MANAGER 320 • New maintenance plan • Maintenance plan history • Backup database • Restore database • Truncate log • Shrink database • Modify data file sizes • Modify log file sizes The Table Info page of the taskpad lists all of the tables and indexes within the database. For each table, this page also shows the number of rows of data that the table currently contains. A bar graph shows you the amount of space occupied by each table and index. The Wizards page of the taskpad offers another way to invoke any of the SQL Server Wizards. From any database node, you can perform common database tasks by using the shortcut menu. These include: • Create a new database • Create new database objects • Delete an existing database • Import data • Export data • Create maintenance plan • Generate SQL scripts • Back up database • Restore database • Shrink database • Detach database • Copy subscription database • View replication conflicts 2627ch09.qxt 9/6/00 11:22 AM Page 320 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 321 NOTE You’ll learn more about databases in Chapter 10. Diagrams When you click a Diagrams node, the right pane of SQL Server Enterprise Manager shows all of the database diagrams that have been created for the database. A single database might have no database diagrams, a single database diagram, or multiple data- base diagrams representing its structure. Double-clicking a database diagram will open it in the database diagram designer. From the Diagrams node, you can create and delete database diagrams. You can create new database diagrams with the node’s shortcut menu, and you can delete database diagrams with the individual diagram’s shortcut menu. This is typical of how all the objects in Enterprise Manager work. NOTE You’ll learn more about database diagrams in Chapter 11. Tables When you click a Tables node, the right pane of SQL Server Enterprise Manager shows all of the tables in the current database, as you can see Figure 9.11. For each table, SQL Server Enterprise Manager lists the table name, the owner name, the type of table (System or User), and the date on which the table was created. THE SQL SERVER ENTERPRISE MANAGER TREE Digging into SQL Server PART III 2627ch09.qxt 9/6/00 11:22 AM Page 321 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. CHAPTER 9 • USING SQL SERVER ENTERPRISE MANAGER 322 FIGURE 9.11 Listing of tables in SQL Server Enterprise Manager From the Tables node, you can create and delete tables, as well as import and export data. Double-clicking a table opens the property sheet for that table. By right-clicking a table, you can perform other table operations: • Design table • Rename table • Delete table • Copy table • Open table (all rows or top n rows) • Open query based on the table 2627ch09.qxt 9/6/00 11:22 AM Page 322 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 323 • Add a full-text index to the table • Manage indexes • Manage triggers • Manage permissions • Import data • Export data • Create a publication (for replication) • Generate SQL scripts • Display dependencies The Dependencies dialog box is especially useful if you’re considering modifying an object. This dialog box (shown in Figure 9.12) tells you which objects the selected table depends on and which objects depend on the selected table. Both direct and indirect dependencies are shown. For example, in Figure 9.12, the CustOrderHist stored procedure has a sequence of 2, indicating that it depends on another object that depends directly on the Orders table. Checking the Show First Level Dependency Only box will limit the display to objects that have a sequence of 1. FIGURE 9.12 The Dependencies dialog box THE SQL SERVER ENTERPRISE MANAGER TREE Digging into SQL Server PART III 2627ch09.qxt 9/6/00 11:22 AM Page 323 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. CHAPTER 9 • USING SQL SERVER ENTERPRISE MANAGER 324 NOTE You’ll learn more about tables in Chapter 11. Views If you select a Views node in SQL Server Enterprise Manager, the right-hand pane will display a list of all the views in the current database, along with their owner, type, and creation date. Figure 9.13 shows this list for a typical database. FIGURE 9.13 Views in SQL Server Enterprise Manager From the Views node, you can create new views and delete existing views. You can also choose to hide some of the columns that are normally shown for each view. The shortcut menu for individual views lets you perform basic operations: • Design view • Open view (all rows or top n rows) • Open query based on the view • Delete view • Copy view • Rename view 2627ch09.qxt 9/6/00 11:22 AM Page 324 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 325 • Manage triggers • Manage permissions • Generate SQL scripts • Display dependencies Double-clicking a view will open the property sheet for the view. On the property sheet, you can modify the permissions for the view, check the syntax of the view, or even change the SQL statement that creates the view. Figure 9.14 shows the property sheet for a view. FIGURE 9.14 Property sheet for a view NOTE You’ll learn more about views in Chapter 13. Stored Procedures As you’d expect by now, if you select a Stored Procedures node in SQL Server Enter- prise Manager, the right-hand pane will display a list of all the stored procedures in the current database, along with their owner, type, and creation date. Figure 9.15 shows this list for a typical database. THE SQL SERVER ENTERPRISE MANAGER TREE Digging into SQL Server PART III 2627ch09.qxt 9/6/00 11:22 AM Page 325 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. CHAPTER 9 • USING SQL SERVER ENTERPRISE MANAGER 326 FIGURE 9.15 Stored procedures in SQL Server Enterprise Manager From the Stored Procedures node, you can create new stored procedures and delete existing stored procedures. You can also choose to hide some of the columns that are normally shown for each stored procedure. The shortcut menu for individual stored procedures lets you perform basic operations: • Copy stored procedure • Delete stored procedure • Rename stored procedure • Manage permissions • Create new publication • Generate SQL scripts • Display dependencies Double-clicking a stored procedure will open the property sheet for that stored pro- cedure, which includes the SQL statements that make up the stored procedure, as well as the ability to edit permissions and check syntax. 2627ch09.qxt 9/6/00 11:22 AM Page 326 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 327 NOTE SQL Server Enterprise Manager does not provide a way to display any rows that might be retrieved by a stored procedure. You’ll learn more about stored procedures in Chapter 14. Users If you click a Users node, you’ll see a list of all the users for the current database. Users are specific to a database (unlike logins, which apply to entire servers) and are the basis for permissions within a database. As you can see in Figure 9.16, the user list shows the name, associated login name (if any), and whether that user is permitted in the database. FIGURE 9.16 User list in SQL Server Enterprise Manager You can create and delete users from the Users node. The shortcut menu associated with an individual user object lets you manage the permissions associated with that user. NOTE You’ll learn more about users (and the other facets of SQL Server security) in Chapter 18. Roles Clicking a Roles node will show you a list of all the roles in the current database. Roles are another part of the SQL Server security mechanism. They allow you to manage permissions for groups of users rather than for individual users. There are two types of roles: application roles (designed for client-side validation of user identity) and stan- dard roles (containing SQL Server users). Figure 9.17 shows a typical list of roles. THE SQL SERVER ENTERPRISE MANAGER TREE Digging into SQL Server PART III 2627ch09.qxt 9/6/00 11:22 AM Page 327 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. CHAPTER 9 • USING SQL SERVER ENTERPRISE MANAGER 328 FIGURE 9.17 List of roles in SQL Server Enterprise Manager From the Roles node itself, you can create and delete roles. Double-clicking a role shows you the properties of that role, including the users in the role and the permis- sions that they are assigned. NOTE You’ll learn more about roles in Chapter 18. Rules Clicking a Rules node will show you all the rules in the current database. Rules are conditions expressed in T-SQL syntax (for example, @salary < 20000) that can be used to limit the data contained in columns of a table. TIP You usually won’t find any rules in SQL Server 2000 databases. Rules are now con- sidered to be obsolete and have been largely replaced by constraints. You’ll find further information about rules in Chapter 4. 2627ch09.qxt 9/6/00 11:22 AM Page 328 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 329 Defaults If you click a Defaults node, the right-hand pane of SQL Server Enterprise Manager will show you all the defaults in the current database. Figure 9.18 shows such a list of defaults. FIGURE 9.18 Defaults in SQL Server Enterprise Manager A default is a default value that can be attached to one or more table columns for use when a value is not explicitly supplied for that column in a new row of the table. From the Defaults node, you can create and delete defaults. Double-clicking an individual default will show you the properties for that default. TIP Like rules, defaults are largely obsolete. For the most part, you should use default constraints instead of defaults in your database designs. There’s further information on defaults in Chapter 4. User Defined Data Types When you click a User Defined Data Types node, SQL Server Enterprise Manager shows you all of the user-defined datatypes in the current database. You can think of user-defined datatypes as aliases for built-in datatypes. Figure 9.19 shows the user- defined datatypes in a typical database. FIGURE 9.19 User-defined datatypes THE SQL SERVER ENTERPRISE MANAGER TREE Digging into SQL Server PART III 2627ch09.qxt 9/6/00 11:22 AM Page 329 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. [...]... can’t manage a linked server with SQL Server Enterprise Manager Remote Servers Remote servers are Microsoft SQL Servers that allow users from the current server to execute stored procedures When you click a Remote Servers node, SQL Server Enterprise Manager will display information on all of the current server s remote servers Double-clicking a remote server brings up the remote server property sheet... start and stop the SQLServerAgent service, or create a new operator, job, or alert You can also view the SQLServerAgent error log, or make this a master or target server for multiserver administration N OT E The SQLServerAgent error log contains only errors directly related to the SQLServerAgent service, not to the operation of SQL Server as a whole When you click an Alerts node, SQL Server Enterprise... by the SQLServerAgent service SQLServerAgent is a separate component of SQL Server that’s Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark 9/6/00 11:23 AM Page 335 THE SQL SERVER ENTERPRISE MANAGER TREE 335 responsible for managing alerts, jobs, and operators, and there are nodes of the tree underneath the SQL Server Agent node for each of these objects From the SQL Server. .. participate in this server role The second tab shows you the operations that this server role has permission to perform NOTE Unlike with most other objects displayed in SQL Server Enterprise Manager, you can’t create or delete server roles Linked Servers Linked servers are servers that SQL Server Enterprise Manager knows about, but that are not necessarily Microsoft SQL Servers A linked server might be... has access to, and the server roles in which it participates Server Roles Server roles are built-in sets of permissions that SQL Server supplies For example, there’s a Server Administrator role that allows its members to configure serverwide settings When you click a Server Roles node, SQL Server Enterprise Manager displays all of the server roles on that server Double-clicking a server role opens the... DB provider The Linked Servers node in SQL Server Enterprise Manager contains one node for each server linked to the current server Each server node in turn contains a Tables node When you click a Tables node, SQL Server Enterprise Manager displays all of the tables on that linked server You can add and delete linked servers from a Linked Servers node Double-clicking a linked server will show the connection... that use that column FIGURE 9.21 Browsing repository metadata in SQL Server Enterprise Manager Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark PA R T Digging into SQL Server III 2627ch09.qxt 334 9/6/00 11:23 AM Page 334 CHAPTER 9 • USING SQL SERVER ENTERPRISE MANAGER The Management Folder Each SQL Server in SQL Server Enterprise Manager contains a Management folder This is... about database maintenance Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark 2627ch09.qxt 9/6/00 11:23 AM Page 339 THE SQL SERVER ENTERPRISE MANAGER TREE 339 SQL Server Logs The SQL Server Logs node for a server holds nodes for the current activity log and for the six most recent activity logs before that Whenever you start SQL Server, it starts writing events to the Windows... that server in its property sheet Figure 9.26 shows a linked server property sheet Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark PA R T III Digging into SQL Server 2627ch09.qxt 2627ch09.qxt 344 9/6/00 11:23 AM Page 344 CHAPTER 9 • USING SQL SERVER ENTERPRISE MANAGER FIGURE 9.26 Connection information for a linked server N OTE Linked servers are primarily used in T -SQL statements... 9.24 Entries in a SQL Server activity log PA R T NOTE You’ll learn more about interpreting SQL Server logs in Chapter 16 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark Digging into SQL Server III 2627ch09.qxt 340 9/6/00 11:23 AM Page 340 CHAPTER 9 • USING SQL SERVER ENTERPRISE MANAGER The Replication Folders The nodes in the Replication folders depend on the server s role in . Management folder SQL Server Agent The SQL Server Agent node is primarily a container for the objects managed by the SQLServerAgent service. SQLServerAgent is. 338 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 339 SQL Server Logs The SQL Server Logs node for a server holds nodes for