performance considerations

There are a lot of considerations for the performance of databases over the years. I thought it would be enough to accumulate these things. I thought they were correct. In fact, they are mostly superficial phenomena, like rather than 1: do not use

Test codeView Code 1 using System;2 using System. Collections. Generic;3 using System. Linq;4 using System. Text;5 using System. Reflection;67 namespace CSharpStudy8 {9 class Program10 {11 static void Main (string [] args)12 {13 {14 dynamic

This is really complicated. I looked at Microsoft's documents and some of them could not be understood at all, but they would not be used by cainiao like me. I can't help it. I 've put a few links in front. Let's try one by one. 1. explicitly open

Today in the export of Excel, always to test the exported Excel file, frequent download and open, very troublesome to write a segment code one GO server export excel==> download Excel file to local ==> and open the operation. Here is the solution to

1. Use of $uses and Loadmodel Try not to use $uses in the cakephp1.3.x version, as this will load all the model used, consume memory and consume unnecessary time. Instead, use Loadmodel to load it where you need to use the model. Set its Recursive

Today in doing export Excel, always test the exported Excel file, frequent download and open, very troublesome   just want to write segment code coherent   service side export excel==> Download the Excel file to the local ==> and open the operation.

Asp.net| Performance | Page In general, we usually in a page, combined with the page event processing model, step-by-step in order to declare each process. This is called synchronous processing (synchronous), we can easily define the order of page

Generally we usually in a page, combined with the page event processing model, in order step-by-Step declaration of each process. This is called synchronous processing (synchronous), we can easily define the order of page processing. While it is

To use PHP to generate a MySQL data dictionary export, use the following code will$mysql _conn = mysql_connect ("$dbserver", "$dbusername", "$dbpassword") or Die ("MySQL Connect is error.");Running the php5.5.12 version will

Performance management is often seen as a sorcery, because performance problems usually occur after application development is complete. By then, it would be difficult to determine their origins. However, once the cause of the performance problem is

We will share with you today the types of MySQL tables, that is, parsing the detailed content of MYISAM and innodb. These two types of tables are also frequently used in practical applications, the following articles mainly describe the relevant

When I first came into contact with SQLServer, I thought that SQL Server would update statistics when changing data. In fact, SQL server does not. Based on performance considerations, SQL When I first came into contact with SQL Server, I thought

ASP. NET session FAQ By Patrick Y. NGAddress: http://forums.asp.net/7504/ShowPost.aspxTranslator: Tony Qu (from blueprint Translation Team) This article is divided into two parts:1. "Understanding session state mode"-helps you understand three

Read Catalogue Recommendation 60: Performance considerations, arrays are preferred Recommendation 61: Use variable-length arrays if necessary Recommendation 62: Beware of shallow copies of arrays Recommendation 63: Specify the

Work needs: Recently, the development of the system to adapt to the underlying database to add support for DB2, although the use of DB2, but performance considerations, and business needs. The query does not require transaction control, that is,

Laravel is recently used. If you want to insert nearly a thousand pieces of data in batches, you can insert data in batches by Directly Writing SQL statements. In addition, the framework ORMEloquent provides a Create method: {code...}. This method

In Amazeui this mobile front-end framework can be used in the following script:function calculate () { $ (' #confirm1 '). Modal ({ });}To trigger a confirmation box in HTML that has the following layout: OK box contents

Original article:Http://www-128.ibm.com/developerworks/cn/java/j-jtp03253/Knowing when to optimize is more important than knowing how to optimizeBrian GoetzChief Consultant, Quiotix CorpJune 21, 2003Where does the performance problem come from?

It seems that the front-end circle has been widely circulated a misunderstanding: the front-end does not use algorithmic knowledge. For a long time, we may have been influenced by this claim. Until the previous encounter with a product demand,

1, to prevent misuse of JavaScript "no matter what Web page you want to change through JavaScript, you must think twice before you do it." The first thing to confirm is: Is it really necessary to add this extra behavior to the Web page? ”