exists rewrite SQL to make it go right execution plan

Database environment: SQL SERVER 2005Today I see a SQL, not very complicated to write, returned more than 7,000 data, but executed 15s. The amount of data in SQL text and tables is as follows:SELECTAcinv_07.id_item,SUM(acinv_07.dec_endqty)

Go to the library directory below your Mac

After the lion, Apple has hidden the library directory, to enter that directory, need to use a certain skill.Open the Finder, press shift+command+g, enter "~/library" (enter the quotation marks), and then press ENTER to get there. ~ The function of

Java–reading a Large File efficiently--go

Original address: Http://www.baeldung.com/java-read-lines-large-file1. OverviewThis tutorial would show how to read all the lines from a large file in Java in an efficient manner.This article are part of the 'java–back to Basic' tutorial here on

Win7 to build the Go language development environment

Win7 to build the Go language development environment1 Download the Go installer package for the Windows version, Http://code.google.com/p/go/downloads/list2 download Liteide for Windows, unzip and use after

Golang Building an Eclipse development environment under Windows7

This is a created article in which the information may have evolved or changed. One. Download and install Go Here is a download address: Click to download After the download is installed, configure the system variable environment: (I install

Go get command line parameters and semaphore processing

This is a creation in Article, where the information may have evolved or changed. When deploying Golang projects, it is unavoidable to set some parameters through the command line, so how do you manipulate command-line arguments in Golang? You can

Interpretation of Golang test explanation

This is a creation in Article, where the information may have evolved or changed. Go test is the go language comes with a testing tool, which contains two categories, unit testing and performance testing You can see how to use the Go test using go

The MD5 of Golang Signature Series

This is a creation in Article, where the information may have evolved or changed. first, from a simple point, It 's also used to compare multiple MD5 encryption to start, not much to say directly on the code Package Signimport ' crypto/md5 ' type

Install Redis and used in Golang on Ubuntu 14.04

This is a creation in Article, where the information may have evolved or changed. $ wget http://download.redis.io/releases/redis-3.0.3.tar.gz$ tar xzf redis-3.0.3.tar.gz$ CD redis-3.0.3$ make Src/redis-server ------------------------------------- $

Golang JSON sample

This is a creation in Article, where the information may have evolved or changed. JSONSTR, Err: = client. Get (Deviceidkey). Result () If Err = = Redis. Nil { DeviceIDs = []string{deviceid} Fmt. Println ("nil") } else if err! = Nil { Error R.status =

Go Language Tutorials Summary

This is a creation in Article, where the information may have evolved or changed. use panic and recover to simplify error handling in the Go language unit Test and reverse proxy in go language go get command line parameters and semaphore

Easy TCP client and server for GO implementation

Today's introduction to the Golang version of the Communication Foundation: TCP-based client and server implementations, reference books: The "the" to GoWhen learning Java was also done communication, then is the socket programming, the server

Go Gson filter Field

Original address: http://my.oschina.net/orgsky/blog/368768Summary Gson filter fieldsGson Filter field Gson Filter Field propertiesCatalogue [-] The simplest usage Method 1: Exclude the Transient field Method 2: Exclude modifier as a

"Go" IIS8.5 Workaround for "Configuration error cannot use this configuration section in this path"

Just installed IIS8.5 today, my system is win8.1 Enterprise version. Built a simple page to prepare for debugging, but found this error:Verbose error message module IIS WEB CoreNotify BeginRequestHandler not yet determinedError code

"Go" Install Tomcat on CentOS

Original link: http://www.cnblogs.com/xsi640/p/3757015.htmlAnother more detailed blog post: http://blog.csdn.net/zhngjan/article/details/25223423Download the latest GZ installation package from the Tomcat website firstFile name:

Cashe (cache) "Go"

Cached English name is the cache, is a French word, each word character is flowing noble blood. The concept of cache originated from 1967 years of an electronic engineering journal paper, the author of the paper "cache" endowed the concept of "safe

DataSet usage Details go

First, the characteristics of the introduction1. Processing of offline data is useful in multi-tier applications.2. You can view the contents of any row in the dataset at any time, allowing you to modify the method of the query results.3. Processing

"Go" About ListView notifydatasetchanged () Refresh data not updated cause

When using the ListView: When you want to dynamically display the changed data (such as database changes), many people should have used notifydatasetchanged (); This method refreshes the ListView to show the changed data.It's time to pay attention:..

"Go" Server.Transfer page Steering and Response.Redirect page steering differences

/* Summarize yourself */Response.Redirect can be moved to local and external pagesSERVER.TRANSFE can only be turned to local page/* Original abstract */Response is to call the browser to re-turn to the specified Web page, and server naturally occurs

ListView after clicking on the item to go to the detailed page returns the ListView data does not display the problem

Reason:After triggering the return button to jump to the main screen of the ListView, the data to reload, at this time to load the data, it will start the activity when the program automatically loaded, and handler inside the main thread is written,

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