Label:Text: Toward Dba[mssql] Improve access performance of databases from the perspective of SQL statementsRecently the company has come to a very tiger DBA 10几 years of experience here is called Cai Teacher. Let us share the precious wealth that Cai Lao has brought to us, with the consent of our Chua. Welcome other DBAs to shoot bricksDirectory1. What is the ex
Label:In the original: Toward Dba[mssql Article] high-efficiency stored procedures for large tables "principle" with the worst performance SQL statement evolutionary process GuestThe results of the test are here to explain the principles of this articleDesign backgroundDue to historical reasons, the online library environment data volume and its huge, many tens above even billions of tables. The goal is to
them by the last update time. Run the following statement: SELECT * from sys.objects where type in (' U ', ' V ', ' P ') Order by modify_dateThis statement identifies all the user tables, views, and stored procedures in the database and sorts them by time, so that you can see others recently added and modified those database objects. Sys.objects does not contain triggers, and triggers are in sys.triggers. There are similar sys.tables,sys.views and so on. Information_schemaIf we want to quickly
very familiar with the functionality of the T-SQL in SQL Server 7.0, this review is very important ). There are too many new features to be discussed. Here we will only give a few examples for each category.________________________________________Related informationFor a complete list of these functions, see the topic "new and enhanced functions of transact-
).________________________________________Other APIs You can also use other APIs to communicate with SQL Server. These APIs include ole db, ODS (open data serves, open data services) and others such as SQL-DMF (SQL Distributed Management Framework, SQL Distributed Managemen
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Comprehensive
SQL Server Skills-Immerse yourself in SQL server (a collection)
Featured Database Articles (itself an aggregation) SQL Server @ DatabaseJournal
35. use SQL query analyzer and SQL profilerUse SQL query AnalyzerUse SQL profilerOptimize T-SQL statementSummaryIn this chapter, we will continue with the description of the pre-stored procedures in Chapter 21st. This chapter describes how to use
Label:Original: SQL Server 2008 Performance Troubleshooting (i)--IntroductionRemark: I spent a lot of work time translation, no plagiarism, allow reprint, but please indicate the source. Because of the length, not a post all finished, but also not so fast all translated, so according to the chapter published. Due to my limited level, translation results must be problematic, in order not to mislead, at the e
the checkpoint process if the time specified is short. Typically, the "dirty" page is written to disk, and Lazy writer has a lot more to do than checkpoint. Summary This article briefly describes the concept of Wal and the role that logs play when modifying database objects. Checkpoint and Lazy Writer are also described, and the understanding of these concepts is the basis for understanding SQL Server
After so many years of mixing in the forum, we have seen an obvious trend: more and more netizens are using VFP and SQL server for the system. Many people are concerned about how to operate or manage SQL Server from VFP. You can use views, SPT, or ADO to perform data operations on
Artificial Intelligence automatic SQL optimization tools-SQLTuning for SQL Server, SQL-sqltuning
In response to this situation, the artificial intelligence automatic SQL optimization tool came into being. Now I will introduce this tool: SQLTuning for
understand that you cannot understand everything about SQL Server. If someone can help you complete the task or solve the problem, you do not have to struggle and waste valuable time.
Your primary source of SQL Server Information is SQL
18. Create and use a view tableView tableView table conceptsCreate a viewModify and delete a tableEnhanced viewing table functionality in SQL Server 2000SummaryIn Chapter 17th, we learned about indexes. indexes are a secondary database structure independent of the database data structure, but they are related to accessing database data. In other words, an index is an independent structure, but is integrated
only one thread at the same time. The latch itself is a special version of the critical section because it allows multiple concurrent read operations. In the context of SQL Server, this means that multiple threads can concurrently read a shared data structure, such as pages in the memory, but the write shared data structure must be performed by a single thread.
The locks are used to coordinate the physical
23. Access Microsoft SQL server from the Internet
Internet programming concepts
Use ISAPI to access SQL Server
Use ASP to access SQL Server
Use XML to access SQL
Tags: style blog http io color using SP strong fileData backup has always been considered a database of life, that is, one of the main skills of a DBA, this article is about the SQL Server backup principle, the SQL Server database is divided into data files and log files. To
Introduction
Sp_who2 is a well known utility that shows what spids are currently executing. however the information it shows is relatively limited. for example, it only shows the type of command executing as select, delete etc, with no reference to the actual underlying SQL executing.
Knowing what SQL is executing can be vital in debugging why a query is taking a long time, or determining if it is being blo
, including me, will encounter the same thing during his or her development process. I know why this happens, and I know how to overcome it.
II. Scope of reading
Note that the main focus of this series of articles is "optimizing the performance of transactional SQL Server database data access", but most optimization technologies are also applicable to other databases.
The optimization technology I will disc
SQL server 2014 installation illustration tutorial (including SQL SERVER 2014 download), 2014sql
In January 1, 2015, at the beginning of the new year, we should have done something meaningful for the next year. As a result, old habits-before you go to bed, you must take a look at the computer, just do it, install a VM
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