apexsql plan

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Recommended free plug-ins for SQL Server Management Studio and Visual Studio ApexSQL complete

SQL Server does not have a code formatting tool, and manual formatting is a hassle for dealing with long SQL written by others.Recommended for SQL Server Management Studio and for plug-ins under Visual Studio ApexSQL Complete,apexsqlrefactor,apexsqlsearchApexSQL Complete Tracking has been closed about the label (need to be enabled in the settings in order to take effect, will consume a certain amount of hard disk space, recommended for the de

Use apexsql log to analyze online database logs and Database backups

Today, I encountered a problem where several tables in the database were cleared. Because the data was deleted last night and was not accessed by users at that time, data can be restored Based on log backup without data loss. But who deleted the data? Many tools were available before MySQL 2008 to analyze the online logs and backup files of databases, but not many of them support MySQL 2008 and later versions. Here, I used apexsql log 2011. The fun

ApexSQL log-sql Error-operated recovery tool

Original: ApexSQL log-sql Error-Operation recovery ToolToday accidentally performed a mis-operation of the database, wondering if there is any tool to recover this error operation? The log Explorer 4.2 was found, but unfortunately it only supported SQL 2005, could not be used on SQL 2008, and then found ApexSQL log, with the latest version supporting SQL 2008 and SQL 2012. The trial version offers a free 14

APEXSQL Log Usage Experience

Today encountered a basic data is deleted resulting in error, remote to the server, just a few days ago to recover a backup library, find that record manually plug back first solved.Other regions also occasionally happen this situation, the data is inexplicably lost, should be mistakenly deleted. Our side of the system if there is a delete to do the log, check the log table did not find the operation, may be a colleague's system or stored procedures caused.Found some database Tools, Log Explorer

Log Analysis Tool-apexsql Introduction

Tags: blog http ar os using SP data on DivOriginal: Log analysis tool-apexsql IntroductionUsage scenarios: Abnormal changes in business data, through the code analysis can not come out, forced to use the log to analyze: Http://www.apexsql.com/Download.aspx?download=logKey points of Use: The principle of the log causes him to not display the original SQL, only to record the changes, this is the mechanism of the log itself The transaction I

APEXSQL log trial cancels export scripts the limit for exporting one row per 10 lines.

Label:Bad state ran to the server update a bit, unexpectedly did not write the conditions, the results found that the library is not backed up ... And then the tragedy happened!! Because it is SQL2008, a lot of software is not supported, and finally found APEXSQL Log, very useful, but the trial version of the 14-day limit in addition to restricting the script export, only one export ... Sweat, although hundreds of data, but also enough to toss. On the

ApexSQL log-sql Operation Recovery Tool (support sql2008,sql2012)

Today accidentally performed a wrong operation on the database, thinking that there is no tool to restore this error operation? The log Explorer 4.2 was found, but it only supported SQL 2005, was not available on SQL 2008, and then found the ApexSQL log, with the most recent version supporting SQL 2008 and SQL 2012, The trial version can provide unlimited 14-day free trial, the function is really powerful Direct download installation, official do

APEXSQL Log database operation of regret medicine

ApexSQL log hack version is a powerful SQL data recovery tool that supports sql2005/2008/2012. Many times our SQL database stored in the server will cause the loss of database files due to hacker damage or misoperation, when the database is lost, if there is no recent database backup files, it means that the data will be permanently lost, but for this kind of situation, we can rely on ApexSQL Log cracked ve

[Plan Theory] Plan Study Notes, Plan Theory Study Notes

[Plan Theory] Plan Study Notes, Plan Theory Study Notes Why should I learn the plan now?Because the plane plan was determined by Shun-cutting HNOI2010... ------------- The line cut is me> w First, there are some definitions: What is a floor

By re-generating the execution plan, the execution plan deviation of Bound variables will be solved, resulting in the SQL Execution time being too long. The execution plan SQL

By re-generating the execution plan, the execution plan deviation of Bound variables will be solved, resulting in the SQL Execution time being too long. The execution plan SQLSome SQL statements in the 11G environment of the Basic Elements (time, user, and problem) are very inefficient in the program, but they are very fast in plsql. by viewing the execution

How to get an execution plan and an execution plan

How to get an execution plan and an execution plan How to get an execution plan from oracle 1. Get a common execution plan. The effect is similar to executing set autot on exp first and then executing SQL. Explain an plan for your_ SQL; select * from table (dbms_xplan.displa

SQL Execution Plan parsing (1)-execution plan BASICS (2)

Getting started If you are not SysAdmin, dbcreator, or db_owner, you need the permission to view the execution plan. GRANT SHOWPLAN TO [username] The first example is very simple. Open Management studio and type the following query SELECT *FROM [dbo].[DatabaseLog]; Click the display estimated execution plan button on the action bar to view our first estimated execution

SQL Execution Plan parsing (1)-execution plan BASICS (I)

E-book URL The execution plan is simply the result calculated by the query optimizer, which indicates the most efficient way to execute the submitted query. The execution plan tells you how the query is executed, so it is the basic means for DBA to diagnose low-performance queries. 1. query what happened after submission When the query is submitted to SQL ServerAfter the database, many processes start to w

Locate an interesting error in selecting the Execution Plan (involving SYS_OP_C2) and execute the plan sys_op_c2.

Locate an interesting error in selecting the Execution Plan (involving SYS_OP_C2) and execute the plan sys_op_c2. These two days and guangfen's brother read a question, which is interesting and the process is tortuous... Symptom: 1. 11g library, say there is a new application launched, the application uses the Bind Variable Method to execute a simple SQL, such as select a from B where c =: x, column c is t

View the actual execution plan of ORACLE and the Execution Plan of oracle

View the actual execution plan of ORACLE and the Execution Plan of oracle ORACLE's execution plans are divided into estimated execution plans and actual execution plans. The execution plans you obtain using Toad, PL/SQL Developer, SQL Developer, EXPLAIN PLAN FOR, or SET ATUOTRACE TRACEONLY are all estimated execution plans. Sometimes the estimated execution

The first test of oracle execution plan improves query performance using the Oracle execution plan mechanism

5.4pt;mso-para-margin:0cm;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:10.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman";mso-ansi-language:#0400;mso-fareast-language:#0400;mso-bidi-language:#0400;}--> o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> height:264.75pt'> o:title=""/> The first figure shows the execution plan

Use explain plan to obtain the SQL statement execution plan

The performance of SQL query statements affects the performance of the entire database to a certain extent. In many cases, poor database performance is almost caused by poor SQL statements. SQL statement executionThe Plan determines how the SQL statement extracts data from the database and returns the data to the client. This document describes how to obtain the SQL statement execution plan through the expl

Analyze Oracle's execution plan (explain plan) and optimize the practice of SQL

Label:Oracle-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 pla

Lesson Plan (Teaching Plan) Translation

Original English address: Workshop. This article Article Some common course planning problems are discussed. : How to take an English Course? What is the teaching plan? Why is a plan important? If you havePlan. Do you need to make a plan? What is the plan principle? How to enter an Engl

How to view the accuracy of the Execution Plan and the Execution Plan

The following execution plan is printed out. Many friends still don't know. In fact, there are only three statements: Explain plan for the SQL statement you want to view; commit; select * from table (dbms_xplan.display ); ----- Split line ---------------------------------- First, let us know a principle,When you look at the execution plan, start from the first l

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