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This article mainly introduces the basic learning tutorial of MySQL triggers, including the basic knowledge of trigger creation and management! For more information, see 0. basic concepts of triggersA trigger is a special stored procedure that

Recently, the company projects to use SNS, in the specific solution above because the project by a strong outsourcing company to do, so there is no commercial solution. But I have been more optimistic about Hong sing products, because the

We can not log in directly after registration, only after the administrator audit to be able to log in, of course, the administrator can also revoke the audit. The audit is used in the Office system more.Registration page:H1>RegisteredH1>formAction=

Once registered, the information will be saved to the session and approved before being added to the database.The information that is added to the database is logged in after the audit passes after the status becomes passed. If the user's bad

See this topic you know what I'm going to say today is the PHP variable reference feature, but what about deferred assignment? This is mainly my recent optimization of some features of an idea, I think it is good, I intend to record it. Take a look

Ignored Magic--php Reference delay assignment (late data delay binding) See this topic you know what I'm going to say today is the PHP variable reference feature, but what about deferred assignment? This is mainly my recent optimization of some

The previous article said that in the Ajax callback to deal with the refresh of the iframe window, this article records the one encountered in the IFrame and the div window in the AJAX request 200 state when the callback problem is executed.Let's

In the micro-letter to do a promotional campaign, the page amounted to three buttons, the need to count the number of clicks, the relevant statistics on the PC is "Baidu statistics", because the H5 activity page timeliness and other reasons, and did

Registration page Register User name: Password: Name: Gender: Birthdays: Registration Processing PagePHP$uid=$_post["UID"];$pwd=$_post["PWD"];$name=$_post["Name"];$sex=$_post["Sex"];$birthday=$_post["Birthday"];$sex=$sex=

In Redis, we often use commands such as set and get. Have you ever noticed that there are several similar commands, setbit and getbit? what are they used? What is BitMap? it uses a bit to represent the value or state of an element. The key is the

class AdminAction extends Action { private $uid_t; public function addassets(){ $uid = I('id'); $this->uid = $uid; $this->setuid_t($uid); $this->display(); } public function setuid_t($uid){

See this topic you know what I'm going to say today is the PHP variable reference feature, but what about deferred assignment? This is mainly my recent optimization of some features of an idea, I think it is good, I intend to record it. Take a look

Ignored magic-delay value assignment for php reference (late data Delay Binding) and value assignment binding I am talking about the variable reference feature of php today, but what is the problem of delayed assignment? This is mainly an idea I

Thinkphp5.0 learning notes (2) and thinkphp5.0 learning notes This article is a summary of the company's API interface Background! 1. Naming considerations: Do not use confusing names, such as index, index01... I like pinyin... For example: public

About what is Weibo open platform and Weibo open platform can do, we do not do search engine PorterHere is a direct link to the introduction of Weibo: Open platformThis article is just a primer, talk about the basic use of micro-BO open platform,

Modify Discuz,uchome,ucenter compatible with your own development of the pass recently slightly contact, modify some of the code, to contribute to the key part of it. Modify Discuz,uchome,ucenter compatible with your own development passA few recent

Hive For Hive, I use Collect_set () + CONCAT_WS () from Https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF. But If you are want to remove duplicated elements, write your own UDF should is the only choice till now. Hive> Select uid,

When you use explain to analyze SQL statements, one of the values of extra is using filesort, for example: Primary Key ('id '),Key 'uid' ('uid ') Explain select * From t_talbe where uid = 1 order by ID; Extra result: Using where; using filesort In

When mysqlin subqueries are simply optimized to a large number, do not use in nested subqueries. The performance is poor and it is easy to get stuck .? The simple adjustment method is as follows: selectuid, nick_namefromuc_userswhereuidin

//Add Public void Insert(stringUidstringPwdstringNickname,BOOLSexstringMemointLevel ) {_cmd.commandtext="INSERT into Youke values (@uid, @pwd, @nickname, @sex, @memo, @level)"; _cmd. Parameters.clear (); _cmd.