Tài liệu Refactoring SQL Applications doc

... unaccept- able. Performance improvement work on database applications usually takes place in a crisis. Database applications are therefore a difficult ground for refactoring, but at the same time the endeavor ... CHAPTER THREE Although MySQL 5.1 can cache the result of queries, it cannot cache the result of queries run from inside a function or procedure. However, contrary to T -SQL, MyS...

Ngày tải lên: 20/02/2014, 11:20

... Listing SQL Servers Problem You need to obtain a list of SQL Servers available on the network. Solution Use SQL Server Distributed Management Objects (SQL- DMO) to retrieve a list of available SQL ... ); // Create a SQL Distributed Management Objects (SQL- DMO) // application object. SQLDMO.Application dmo = new SQLDMO.Application( ); // Retrieve the available servers. S...

Ngày tải lên: 24/12/2013, 05:15

... line: 'db_passwd' => '' and add your MySQL database password as the value. Now Partuza can connect to the MySQL partuza database. The final step is to configure Shindig ... 26 Case Study: Friendship-Based Social Gaming 26 Case Study: Product Sales Applications 30 Case Study: Location-Based Applications 32 Quick-Start Tips 36 Understand Your Audience 36 Build Social...

Ngày tải lên: 17/02/2014, 19:20

... excerpt from the SQLQuery8_f0316_f0317 .sql script creates the database: DECLARE @str1 nvarchar(128) SET @str1 = 'copy "c:\Program Files\Microsoft SQL Server\' + 'MSSQL.1\MSSQL\DATA\northwnd.mdf" ... files\microsoft sql server\mssql.1\mssql\data\ rename Database_1a.bak Database_1a.mdf rename Database_1a_log.bak Database_1a_log.ldf The sample concludes by recoveri...

Ngày tải lên: 10/12/2013, 14:15

... reserved. Page 3 Mini Cheat Sheet for SQL 2005 Counter s **Note that most of these v alues assume that the physical server’s sole responsibility is running SQL Server SQL s Built-In Monitoring Systems In ... detail. Real Time Monitoring Raw SQL Counters At any given time, amazing amounts of statistical and diagnostic information are being produced by the physi- cal server and by SQL...

Ngày tải lên: 10/12/2013, 14:15

... include extensions, which enhance SQL and make it behave more like a programming language. SQL Server provides a set of statements known as Transact -SQL (T -SQL) . T -SQL recognizes statements that ... strings with valid T -SQL statements. If the variable @TSQLcmd contains a valid SQL statement, you can execute it by passing it as an argument to the EXECUTE procedure: EXECUTE (@TS...

Ngày tải lên: 10/12/2013, 17:15

... Using SQL SQL (pronounced sequel) is the standard language for accessing relational databases. As you'll see in this chapter, SQL is easy to learn and use. With SQL, you tell the ... Start ➣ Microsoft SQL Server ➣ Query Analyzer. In the following sections, you'll learn how to connect to a SQL server instance, enter and run a SQL statement, save a SQL statement, and...

Ngày tải lên: 14/12/2013, 13:15

Ngày tải lên: 14/12/2013, 13:15

... of SQL statements is known as a commit, or committing the SQL statements. Undoing the results of SQL statements is known as a rollback, or rolling back the SQL statements. You can group SQL ... Orders table wouldn't reference a valid row. Grouping SQL Statements By default, when you run an INSERT, UPDATE, or DELETE statement, SQL Server permanently records the result...

Ngày tải lên: 14/12/2013, 13:15

... broad consumption, starting with SQL Server Reporting Services. SQL Server Reporting Services Another one of the BI services in the SQL Server platform is SQL Server Reporting Services. Reporting ... ■ Note Remember that SQL Server services can be run “a la carte.” Even if you have a significant investment in SQL Server 2005 as your data storage, you can still use SQL Server...

Ngày tải lên: 14/12/2013, 15:15