plan digitizer

Tip One: Select the power Plan through the power icon, and left-click the battery icon in the lower right corner. Click on the desired power plan. Tip Two: Turn on the Power option to select a power plan. Start Menu and click "Control Panel". Click on "System and security". Click "Power Options". S

Win7 task planning is a Windows7 system more practical, a small function, using the WIN7 task plan, we can create such as a regular shutdown, time to open an application or program, etc., practical or relatively strong, but many netizens just heard Win7 mission plan is more fun, But do not know Win7 mission plan where, how to enter the task

Tags: GDI recurring studio issue open size Maintenance extension diskThis article uses the SQL Server R2 's own maintenance plan to create a task that automatically backs up data.First, start ? SQL Management Studio, make sure that SQL Server agent is in the startup state. If not, you can right-click to select start .second , expand Management---Maintenance plan, and right-click Maintenance

Background:A table suddenly appears query very slow situation, cost 100+ seconds or more, seriously affect production.Original sql:Explain plan for SELECT * FROM (select ID id,ret_no retno, From_sys fromsy, To_sys Tosys, Command_code Commandcode, Comman D, STATUS, Ext_code, Orign_code origncode,error_message errormessage, Re_f, ret_msg retmsg from Interface_table where (co Mmand_code in (' Aasss ') and status in (' F ', ' E ') and (Re_f = ' N ') and

The V$sql_plan view provides a way to check the execution plan of a cursor that is still in the library cache. The information in this view is very similar to the information in the Plan_table view. However, EXPLAIN plan shows the theory that can be used when executing the corresponding statement, and V$sql_plan contains the plan that is actually used. The execut

The knowledge about Oracle database implementation plans is what we will introduce in this article. We first introduce the concept of implementation plans, and then give examples of two implementation plans, finally, we introduced the form of the Oracle optimizer and the purpose of the plan. Let's take a look at this part.What is a strong plan?The so-called implementation of the

Label:Oracle Database View Execution planOracle-based application system many performance problems are caused by poor application SQL performance, so, SQL performance optimization is very important, analysis and optimization of SQL performance we generally look at the SQL implementation plan, this article on how to understand the implementation plan, And how to optimize SQL by analyzing the execution

Read Catalogue Begin How SQL Server looks for records SQL Server Join method More specific execution procedures Index statistics: The choice of the query plan is based on Optimizing View Queries Recommended Reading-MSDN Articles For SQL Server optimizations, tuning queries can be a common thing. Due to the optimization of the database, it is also a wide-ranging topic, so this article only discusses how to understa

Tags: find return cache response free temporary analysis CCache cannotSQL Server submits a user-submitted DML statement that, through a series of optimizations, produces a scenario that can be identified and efficiently "responded" by SQL Server using the Ctrl+m (actual execution plan) in Ctrl+l (estimated execution plan)Committing a DML statement (CRUD) can cause a series of activities.1. Activities that o

Tags: rom mit nested RAC row index driver who statementHow to read Oracle Execution Plan First, what is the implementation plan An explain plan is a representation of the access path, that's taken when a query is executed within Oracle. Second, how to access data At the physical level Oracle reads blocks of data. The smallest amount of data read is a single Orac

Read SQL Server query planRead Catalogue Begin How SQL Server looks for records SQL Server Join method More specific execution procedures Index statistics: The choice of the query plan is based on Optimizing View Queries Recommended Reading-MSDN Articles For SQL Server optimizations, tuning queries can be a common thing. Due to the optimization of the database, it is also a wide-ranging topic, so this article only

SQL Server uses many techniques to optimize resource consumption: Query optimization based on syntax; Useless plan matching to avoid deep optimization of simple queries; Index and connection strategy according to the current distribution statistics; Multi-stage query optimization to control the optimization cost; Execute a plan buffer to avoid rebuilding the execution

A few days ago, I was not very familiar with Plan cache. I sent a question on msdn. Some Questions about SYS. dm_exec_cached_plans and SYS. dm_exec_query_stats The implementation plan is described in the online manual as follows: The SQL Server Execution Plan contains the following main components: Query planThe main body of the Execution

Original: http://space.itpub.net/24778843/viewspace-693743 Brief introduction: This article provides a comprehensive overview of the relevant concepts of the Oracle execution plan, access to data, connectivity between tables, and more. and a summary and overview, easy to understand and memory! +++ Directory --- A Related concepts The concept of ROWID Recursive SQL Concepts predicate (predicate) Driving table (Driver) Probed table (being probed) Compos