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(*) > 1; " > uid_double.txtawk'{print" delete from user_mapping where platform= "$ 1 "and uid=" "$"; "} ' uid_double.txt >-uusername-ppassword user_del Step4. Modify the User_mapping table to re-establish the UID as the primary keyAlter Table Add Primary Key (UID);Step4. Constructs a statement that queries the UID in the uid1202 table in the User_mapping tableMysql-uusername-ppassword user_del-e"select uid from uid1202" > uid.txt awk'{print ' Select Open_id,platform,serverid from user_mapping

|+----------+1 row in Set (0.16 sec)Now you can index it, explain the real SQL statement on the line.Mysql>explainselectpost_idfromtest.tbl_testwherepost_type Add indexMysql> ALTER TABLE Test.tbl_test Add index Idx_f (check_status,flag,post_type,post_time); Query OK, 0 rows affected (4.45 sec) records:0 duplicates:0 warnings:0One more explain, scan 500,000 lines to 2 lines.Mysql>explainselectpost_idfromtest.tbl_testwherepost_type After you have debugged the index, determine that you can optimiz

Environment: MyBatis + oracle11g R21. Use Direct path insertion ("/*+append_values */" in the following SQL statement) and use keyword "union ALL":2.dao layer implementation: Before a one-time commit, this will increase with the number of inserts, the speed of the operation is very slow, so should be inserted in batches:public void Save (list MyBatis BULK INSERT Oracle Massive data logging performance problem Resolution

Environment: MyBatis + oracle11g R21. Use Direct path insertion ("/*+append_values */" in the SQL statement below) and use the keyword "union ALL":2.dao layer implementation: Before a one-time commit, this will increase with the number of inserts, the execution speed is very slow, so should be inserted in batches:public void Save (listMyBatis BULK INSERT Oracle Massive data logging performance problem Resolution

lock read statement with the current read, read the original row, because the general read and write does not conflict, so InnoDB will not appear read-write starvation situation, Also because the use of the index is a row lock, the size of the lock is small, the situation of the same lock competition is less, the increase in concurrency processing, so the efficiency of concurrent reading and writing is very good, the problem is that the index after the query based on the primary key two search

minutes. Read here is a more than 7 million-line file, updated record about 300多万条.My $db _handle = Dbi->connect ("dbi:mysql:database= $database; host= $host", $db _user, $db _pass, {' RaiseError ' = + 1, autocommit = 0}) | | Die "Could not connect to database: $DBI:: Errstr"; eval {while (!eof ($FD)) { $CloudID = The first time to start is to execute SQL, so the speed is very slow! Set autocommit = 0, and then commit, the speed is greatly improved. Copyright NOTICE:

, if it is not the public method, it needs to setaccessible (true); Then invoke the value of the field in the instance and database. All code: Directly copy the past can be used, you change the IP definition of your entity class just fine, if you can't add me QQ468165108 Jar Package used: Ojdbc14.jar,mongo-2.5.3.jar Jar:http://pan.baidu.com/s/1ktgnvoj Password: 69FZ, public void Odbctomongo () throws Exception {Mongo Mongo = new Mongo ("192.168.1.3", 30000); DB db = Mongo.getdb ("test");

What is the time difference between Brazil and Beijing? China uses the Chinese time (East eight area), while Brazil uses West three district, so the time difference is 11 hours. China in the Eastern Hemisphere, time is earlier, Brazil time plus jet lag is Beijing time. Brazil time is 11 hours later than Beijing time. Brazil, China has time lag The Brazilian Olympic Games are held August 5-August 21. This is Brazilian time. China wants to wat

. jQuery slideviewer. jQuery Jqgalscroll 2.0. jquery–jqgalviewii. JQUERY–JQGALVIEWIII. jQuery Photo Slider. jQuery thumbs–easily Create thumbnails. jQuery jqir Image replacement. Jcarousel Lite. Jqpanview. Jcarousel. Interface Imagebox. Image Gallery using JQuery, Interface Reflactions. Simple jQuery Gallery. jQuery Gallery Module. EO Gallery. jQuery scrollshow. jQuery Cycle Plugin. jQuery Flickr. jQuery Lazy Load Images Plugin. zoomi–zoomable thumbnails.

Module.EO Gallery.jQuery scrollshow.jQuery Cycle Plugin.jQuery Flickr.jQuery Lazy Load Images Plugin.zoomi–zoomable thumbnails.jQuery Crop–crop Any image on the fly.Image Reflection.jquery Plugin-google maps (Google map)jQuery Plugin GoogleMaps.jmaps jQuery Maps Framework.Jqmaps.jQuery Google Maps.jQuery Maps Interface forr Google and Yahoo Maps.jQuery J maps–by tane Piper.jquery Plugins-Games (Games)Tetri

All gameloft games-52 games List of the Games:Asphalt urban GTAsphalt urban GT 2King KongPrince of Persia the two thronesPrince of Persia warriorPrince of Persia harem adventuresPrince of Persia Sands of TimeMidnight hold em pokerMidnight BowlingMidnight poolReal football 2004Gameloft SolitairePlatinium SolitaireFootball triviaXIIIGulos taleReal football 20051000 wordsRainbow six lockdownMight and magicBloc

Source code for iOS games, ios games Game source code: the game is a multi-level cocos2d-based iPad mouse game source code, which is also a high-quality mouse game source code, can have a gradually rising level settings, you can set up some commercial models at the level to make a profit. It is a perfect full version of the casual game source code. Source code download: http://code.662p.com/view/6306.html

Digital and text-back games, digital and text-back Games The beauty of programming two questions. Question 1: Find the nine-digit numbers that meet the condition. Each digit is different (1 ~ 9) to enable n-bit division by n. For example, abcdefghi, the two high AB nodes can be divisible by two, the three abc nodes can be divisible by three, and so on. When it comes to arrangement, it is easy to think of re

Letter games and typing games [Problem description] Peter liked playing the letter game, so he wrote an interesting game. The rules of the game are to fill in letters in a (N-1) * N table, rules: For each input N, starting from the upper left corner of the (N-1) * N letter area, enter A letter area counterclockwise from letter A. if the product is greater than 26, it will continue to be filled by A, B, and

[Python] games and python games Alien_invasion.py Import sysimport pygamefrom settings import Settingsfrom ship import Shipimport game_functions as gffrom pygame. sprite import Groupdef run_game (): # initialize the game and create a Screen Object pygame. init () ai_settings = Settings () screen = pygame. display. set_mode (ai_settings.screen_width, ai_settings.screnn_height) pygame. display. set_caption (

Python beginners implement 2048 games and python2048 games Not long after I got started with Python, I saw a lot of people write 2048, but I was also familiar with Python syntax. The program uses Python3 to write the code about 150 lines. Based on the console, the arrow keys use the input characters for simulation. Demo Image 2048. py #-*-Coding: UTF-8 -*-#! /Usr/bin/python3 import random v = [[0, 0, 0, 0]

Cat learning IOS (6) UI-popular iOS games _ super guess pictures (source code) and popular ios games CAT/CAT sharing, must be excellentMaterial address: http://download.csdn.net/detail/u013357243/8523193Address: http://blog.csdn.net/u013357243/article/details/44538955First look Ps: The Cat and CAT Articles have been reposted in many places, so I'm flattered. But please turn around a little bit dur

Source code for android wuziqi games and source code for android wuziqi games This game case is the source code of the android wuziqi game. It is also a recently developed android wuziqi game. Let's take a look at it. For beginners, only meizu screens are used. However, this does not affect everyone's learning and operation. If you like it, you can upgrade or update it on this basis.Project s

; - if(array[0][2]==array[1][1]array[1][1]==array[2][0]array[2][0]== ' x ') A return1; + for(inti=0;i) { the if(array[i][0]==array[i][1]array[i][1]==array[i][2]array[i][2]== ' O ') - return2; $ if(array[0][i]==array[1][i]array[1][i]==array[2][i]array[2][i]== ' O ') the return2; the } the if(array[0][0]==array[1][1]array[1][1]==array[2][2]array[2][2]== ' O ') the return2; - if(

A first open the Web download TCL/TK game source Http://sourceforge.net/projects/tkgames/files/latest/download?source=typ_redirectb The TCL/TK source code file in the compressed package tkHearts-0.90 opened with a text editor, and all the contentCopy to the Init_script string constant in the go source code below Package MainImport "Github.com/nsf/gothic"Const init_script = '#把Tcl/TK source code is copied into this constant. `func Main () { ir : = Gothic. Newinterpreter(init_script)i