Label:Direct cause of index invalidation: when some operations result in ROWID changes to the data, the index is completely invalidated. When will that cause rowid changes to make the index unuseable or invalid? General ordinary table in the following 3 cases can make index unusable1) manual alter index unusable 2) Move "ALTER TABLE move" "ALTER TABLE t02 move tablespace tbs01;" Includes partition operation 3) Sqlldr "Sqlldr (parallel or direct) appen
1.Code:var i;for (i=0;iAjaxservise (i);}Calling the Ajax method in the for loop complements the data on the page, which is wrong, and does not execute the Ajax method every time the for loop is executed, but instead executes the Ajax method at the end of the For loop, which results in Ajax being executed only once . However when modified as follows:for (i=0;iAlert ("AA");Ajaxservise (i);}Unlike the above, a
Yinglie Fu
The shore of the East China Sea, under the sky, starts from the long white. At the end of the day and the region of the Tianshan Mountains, pangu began to form all things, nvwa and gold shaping creatures. The spirit of heaven and earth, the China of sun and moon, began to become China.
The mountain rises in the wild and leads in ugun, the water is in YuanYi and the flood is in Zhongzhou; the su
Problem:
I am working on a project. There are two windows, one is the main window and the other is the window. open subwindow. now, after processing the corresponding event in the main window, call the corresponding function of the subwindow to pass some information and modify the content of the subwindow. Because it is done in the JavaScript code of the main wi
Oracle triggers. When a table is updated or inserted, data is synchronized to a table in another database. oracle Data is synchronized.
Two tables are the T_SRC_WEATHER_TSPG fields under User,
User B's t_src_weather table,
It is required that when the T_SRC_WEATHER_TSPG table under user A
Mysql extension compilation in php in linux successfully shows that everything in mysqlsupportyes is successful, but mysql extension compilation in php in callundefinedfunctiolinux is successful. it shows that everything in mysqlsupportyes is successful, but callundefinedfunctionmysql_connect nb php in linux mysql extension compilation
A shopnc running on port 8080 is enabled for the project, but the session of login_check is still in progress. after logging on, the session is no longer displayed when login_check is redirected to the new page, someone has encountered a similar problem? Apache environment, php. session in ini. use_trans_sid already...
Mysql extension compilation in php in linux successfully shows that everything in mysqlsupportyes is successful, but mysql extension compilation in php in callundefinedfunctiolinux is successful. it shows that everything in mysqlsupportyes is successful, but callundefinedfunctionmysql_connect nb php in linux mysql extension compilation
I don't know if you have encountered such a problem, that is, you want to write a program to execute the program, such as a few scheduled executions every day, php web programs, the so-called execution must be accessed. Ignore_user_abort (true); function allows the program to continue in the background after the browser is closed... syntaxHighlighter. all (); I don't know if you have ever encountered such a
Every expression in Lisp has a value, and why is there no return value for this very common expression in Python3?
Reply content:First of all, because you are using the C + + thinking to understand Python.
No, no, the return value is not the same, and the return value is the result of the function. It should be an expression value, exactly.
The grammar of a lan
First of all, the so-called SQL dynamic and static, refers to when SQL statements are compiled and executed, both are used in SQL embedded programming, which is referred to as embedded refers to the SQL statement embedded in the high-level language, rather than the type of microcontroller embedded programming.In a high-level language, if an SQL statement is embedded, and the main structure of the SQL statem
In windowmobile development, if the network is not connected successfully or the server address is incorrect, the software will crash when the program calls the WebService method.
There are the following solutions:
1. Download the server-specific static HTML to see if the download is successful. If the download is succ
Css is written in the content sent by phpmailer, backgroundurl (xxx) is used in css, and css is written in the content sent by phpmailer, background nbsp; url is used in css (css is written in xx content sent using phpmailer, background url (xxx)
echo $row [0];
echo Time ();
$row is the time that is read from the database.
Show Results:
2013-05-02 18:50:15
1367492310
My data type is not set, right? Or is MySQL or PHP automatically converted? How can I read the timestamp directly? I know I can use time to convert a function, but I wonder if I could read the ti
Another problem is that data is related, but it is difficult to query a table with n fields. the primary key id is then an array in the php code $ arr = array ( nbsp; array ('id' = gt; '5', 'Num '= gt; 100), nbsp; array ('id' = gt; '11 ', 'nu has another difficulty. The data has some connections, but it
Recently in the development of a project, want to reference the bootstrap file, has been wrong, so want to study the next relative path and absolute path relationship, to see how they are different.
What is an absolute path and a relative path?
DIVCSS5 for everyone to introduce the basic knowledge of relative path and absolute path, function, usage and other knowledge.
Relative path: The directory path that is
Originally "Donkey water" actually not be optimistic about the industry, but with the world road Show and ahead of the point, a good evaluation of the way to improve, and finally on the first day to get a new film "Dantine Code" similar to the row, the final week 6th three days, "Donkey water" got 6010 New Balance 597 of the box office effect- It's better than the initial guess, but it's not much of a surprise than the previous confidence. Of course, "Dantine code"
Css is written in the content sent by phpmailer, backgroundurl (xxx) is used in css, and css is written in the content sent by phpmailer, the background url (xxx) is used in css, and the url () is null. what is the problem? Who ha
PHP Composer What is the application scenario is what to read the document is not read
Reply content:
PHP Composer What is the application scenario is what to read the document is not read
Composer
Amazing food counterfeiting! The more traditional it is, the simpler it is, the more difficult it is to process it!
Food Safety! Shovel, no.
Minced pork is made from dead mother pork.
Sausage with garbage meat, and add some toxic chemicals to prevent insects, anti-X. They don't even touch sausages.
Ri
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