System Stored Procedures System stored procedures are packaged with SQL Server. Many procedures are used to administer SQL Server, but some are utilities that can be profitablly used by developers. They are global, and can be called from any database application without their fully qualified name. (They are all owned by dbo.) . They are all stored in the Master database, and have the prefix sp_. This is a reason why it is considered unwise to name local stored procedures with the sp_ prefix. They can be read by viewing their properties in the Query Analyzer.
Laptop Battery The system-stored procedures are grouped into these categories.
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Another important point regarding input parameters and variables in general when dealing with SQL Server stored procedures is that the parameters and variables must begin with an at (@) sign as shown in the previous example. This identifies the parameters and variables as variables local to the stored procedure, unlike SQL Server's global variables, which begin with two at signs and are global to all stored procedures.
Microsoft Active Directory Procedures
Used to register instances of SQL Server and SQL Server databases in Microsoft Windows® 2000 Active DirectoryT.
A stored procedure is a group of SQL statements compiled into an execution plan and stored under a unique name in the database. It is then executed as a unit. Stored procedures in SQL Server and Oracle are similar to queries in Access. However, stored procedures are much more flexible and powerful than queries, as you'll discover in later chapters when you start implementing more complex stored procedures.
Laptop Computers Catalog Procedures
Implements ODBC data dictionary functions and isolates ODBC applications from changes to underlying system tables.
The Oracle stored procedure that you examined previously works well as a stored procedure that inserts data into a table. In fact, stored procedures that insert, update, and delete data in Oracle work in the same manner as they do for SQL Server. You call the stored procedure from your code and pass it the required parameters and the data is inserted, updated, or deleted.
Laptop Computer Cursor Procedures
Implements cursor variable functionality.
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Desktop Computer Database Maintenance Plan Procedures
Used to set up core maintenance tasks necessary to ensure database performance.
Notebooks Distributed Queries Procedures
Used to implement and manage Distributed Queries.
Lenovo Full-Text Search Procedures
Used to implement and query full-text indexes.
Hard Drive Log Shipping Procedures
Used to configure and manage log shipping.
Travelstar OLE Automation Procedures
Allows standard OLE automation objects to be used within a standard Transact-SQL batch.
Gateway Replication Procedures
Used to manage replication.
Laptop Parts Security Procedures
Used to manage security.
Software SQL Mail Procedures
Used to perform e-mail operations from within SQL Server.
Hard Drives SQL Profiler Procedures
Used by SQL Profiler to monitor performance and activity.
Electronics SQL Server Agent Procedures
Used by SQL Server Agent to manage scheduled and event-driven activities.
Canon System Procedures
Used for general maintenance of SQL Server.
Desktop Pc Web Assistant Procedures
Used by the Web Assistant.
Desktop Computers XML Procedures
Used for Extensible Markup Language (XML) text management.
Think Pad General Extended Procedures
Provides an interface from SQL Server to external programs for various maintenance activities.
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You can create your own system-stored procedures by following the guidelines outlined above. But, even though it is possible to modify an existing system sproc, it is better to name it with another name than to destroy the system version.
Data Recovery Dynamic Queries are created and executed within a stored procedure, and are built typically by passing in text parameters and creating a text SQL string. Then the string is executed using the form EXEC (@createdstring). Dynamic query plans are not stored in cache, and local variables created in the dynamic query are not available after the query is executed. To save the query plan, instead of the keyword EXEC, use sp_executesql. Also, with sp_executesql local variables can be used both as INPUT and as OUTPUT parameters.
Cisco Autoexec procedures, called autostart procedures can be made by invoking the system stored procedure
sp_procoption procedurename, startup, true
Keyboard Extended Store Procedures
Extended stored procedures are auxiliary stored procedures created in a DLL using C++. They are prefixed with xp_, and stored in the Master database. When called from an application database, they bust be fully referenced, using the Master..xp_procname form. Before you can invoke it, you must register the DLL with SQL Server using the syntax:
Monitor sp_addextendedproc [@functname=] 'procedure', [@dllname=] 'dll'
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Information Getting Started with Sybase
Infosys This resource discusses Sybase database management system.
Refurbished Laptops Information: Accessing Stored Procedures
Wipro This resource gives insightful information on accessing stored procedures.
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