1. Used to delete duplicate records (the use of to delete the common record)
Example: (example)
#1 initialize data (initialize the data)
Create Table # tmp1 (ID int, name nvarchar (20), age INT );
Insert into # tmp1 values (1, 'cangowu', 25)
Insert into # tmp1 values (2, 'cangowu', 25)
Insert into # tmp1 values (3, 'cangowu', 25)
Insert into # tmp1 values (4, 'ajay ', 29)
Insert into # tmp1 values (5, 'ajaje', 29)
Insert into # tmp1 values (6, 'ajaje'
ArticleDirectory
Ajay Kalra posted on Wednesday, January 14,200 9 AM
Asoni1 posted on Tuesday, January 13,200 9 pm
Ian Semmel posted on Tuesday, January 13,200
Tom serface posted on Tuesday, January 13,200 9
Asoni1 posted on Wednesday, January 14,200 9 AM
Sanoop das K posted on Saturday, February 28,200 9 pm
Http://www.eggheadcafe.com/software/aspnet/33811658/detect-changes-in-clistctrl-control-with-checkbox.aspx
insert. If it is a duplicate, the new record will replace the old one:
The code is as follows
Copy Code
Mysql> REPLACE into Person_tbl (last_name, first_name)-> VALUES (' Ajay ', ' Kumar ');Query OK, 1 row Affected (0.00 sec)Mysql> REPLACE into Person_tbl (last_name, first_name)-> VALUES (' Ajay ', ' Kumar ');Query OK, 2 rows Affected (0.00 sec)
Use replace instead of
, first_name));
The existence of a unique index in a table usually leads to errors. If a record is inserted in the table, the existing record in the column or column of the index is repeatedly defined.Use insert ignore instead of INSERT. If the record does not reproduce the record, MySQL inserts it as usual. If the record is repeated with the IGNORE keyword, MySQL will discard it quietly without generating an error.
In the following example, there are no errors and duplicate records are not inse
; VALUES( 'Ajay', 'Kumar');Query OK, 1 row affected (0.00 sec)mysql> REPLACE INTO person_tbl (last_name, first_name) -> VALUES( 'Ajay', 'Kumar');Query OK, 2 rows affected (0.00 sec)
REPLACE instead of INSERT. If the record is new, INSERT it. If it is a duplicate, the new record will replace the old one:
Another way to force uniqueness is to add a UNIQUE index instead of a primary key table.
CREATE TABLE
string Name {get {return name;} set {name = value;} private string email; public string Email {get {return email ;} set {email = value ;}} static void Main (string [] args) {var a = new Person {Age = 34, Name = "Jacky ", email = "Jacky@gmail.com"}; var B = new Person {Age = 23, Name = "Ajay", Email = "Ajay@gmail.com"}; var c = new Person {Age = 12, name = "Bill", Email = "Bill@gmail.com"}; var d = new Pers
', ' roving ', ' violer ', ' virole ']This function is similar to a word puzzle game , which can be easily obtained by using the function and dictionary resources in NLTK. Let's look at another feature to find the names that men and women share. That is, men can be used, women can also use, from the name of a gender cannot be distinguished from the name.In NLTK , there is a name database with two files that store both male and female names. The code is as follows:Name=nltk.corpus.namesPrint (N
/99: Mostly s/sendmail/postfix/g by John A. Martin
#23/11/00: Changes suggestions by Ajay Ramaswamy
#20/01/01: Changes to fall in line with RedHat 7.0 style
#23/02/01: Fix a few untidy problems with help from DanielRoesen.
# Source function library.
./Etc/rc. d/init. d/functions
# Source networking configuration.
./Etc/sysconfig/network
[$ {NETWORKING} = "no"] exit 0 // first determine whether the network is connected. If no email cannot be sent,
Why do we love Cassandra?Posted onApril 22, 2015by Ajay tiwari-app42 backend as a Service APP42 provides lots of readymade APIs for developers and each API solves different problem of App development. To solve a different problem you need a different solution. APP42 architecture uses hybrid solution for each of the Services on database layer. Some Services is a good candidate for RDBMS however others is for NoSQL and Some require in-memory persiste
)
-> VALUES (' Ajay ', ' Kumar ');
Query OK, 1 row Affected (0.00 sec)
mysql> REPLACE into Person_tbl (last_name, first_name)
-> VALUES (' Aja Y ', ' Kumar ');
Query OK, 2 rows Affected (0.00 sec)
Use replace instead of insert. If the record is new it inserts the insert. If it is a duplicate, the new record will replace the old one:
Another way to enforce uniqueness is to add a unique index instead of a primary key table.
CREATE TA
co-location of meetings is expected to continue until the 1st 2006 meeting of ITU-T SG 16, upon which we plan to meet alongside sg16, approximately 12-17 March 2006. we are then likely to return to meeting with MPEG (16-21 July in Klagenfurt Austria and 22-27 October in Hangzhou China ).
The JVT has two parent bodies, which are MPEG (ISO/iec jtc 1/SC 29/WG 11) and VCEG (ITU-T SG 16 Q.6 ). particle operation in the JVT is open to anyone who is qualfied to fig in MPEG or VCEG, and to those person
characters, Or returning the number of characters. Well, likeGetCurrentDirectory, You need to pass number of characters, andNotNumber of bytes. For example ::Collapse | copy code
TCHAR sCurrentDir[255]; // Pass 255 and not 255*2 GetCurrentDirectory(sCurrentDir, 255);
On the other side, if you need to allocate number or characters, you must allocate proper number of bytes. In C ++, you can simply usenew: Collapse | copy code
LPTSTR pBuffer; // TCHAR* pBuffer = new TCHAR[128]; // Allocates 128 or
Managing the software lifecycle(Video)
Http://www.ftponline.com/reports/vslivesf/2005/sudan/
Ajay Sudan
Product Manager for Visual Studio team system developer division at Microsoft
Introducing indigo: an early look
David Chappell
Chappell Associates
Http://msdn.microsoft.com/longhorn/default.aspx? Pull =/library/en-US/dnlong/html/introindigov1-0.asp
Indigo "Hello World"
Clemens vasters
Http://staff.newtelligence.net/clemensv/PermaLink.aspx
Plyr. Step 4: Learn specific packages in r–data.table and DplyrThis is the WHERE fun begins! Here are a brief introduction to various libraries. Let ' s start practicing some common operations.
Practice the Data.table tutorial thoroughly here. Print and study the cheat sheet for data.table
Next, you can has a look at the Dplyr tutorial here.
For text mining, start with creating a word cloud in R and then learn learn through this series of Tutorial:part 1 and Pa RT 2.
For so
validate this method, you need to create a configuration and instance named Quercus, and then deploy it on the Web Server. For a demonstration of the procedures involved in the WEB Server management console, see Ajay Acharya screen recording.
Tip: To avoid administration Server (WADM) prompting you to enter a password for each command, follow this procedure to save passwords and other related information.
To create the configuration and instance on
Monday, June 18, 2018
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Workshop and challenge on learnt Image Compression
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