Base 64 encoding of the ComponentsOf the extended rowid in a four-piece format, oooooofffbbbbbbrrr.Extended rowids are not available directly. You canuse A supplied package, dbms_rowid, to interpret extended rowid contents. The package functions extract and provide information that wowould be availableDirectly from a restricted rowid as well as information specific to extended rowids.
What Does Oracle rowid mean
File expression-e filename true if filename exists-d filename If filename is a directory, true-F filename True if filename is a regular file-L filename True if filename is a symbolic link-r filename If filename is readable, true-W filename if filename is writable, true-x fil
What does Sequence mean?SQL> select * from v $ version where rownum = 1;BANNER--------------------------------------------------------------------------------Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-Production the following is an official document from 11gR2: CREATE SEQUENCE
Purpose
Use the create sequence statement to create a sequence, which
Linux and renamed to Dash (Debian almquist Shell), it is recommended to point /bin/sh to it for faster script execution. The Dash shell is much smaller than the bash shell and is POSIX compliant.So that is in Ubuntu can be considered /bin/sh is/bin/dash, if you intend to us
What does CPS mean?
Product Promotion Solutions (commodity promotion Solution), referred to as CPS, is based on the portal level of network media, through the full station, a continuous display of a commodity, to promote user awareness, preferences and purchase an innovative way to promote.
CPS is suitable for produc
What does backend Type Static mean in magento? Posted on
January 28,201 1
By
Fangcaoyuan owner
AboutA year ago, I noticed some category or product attributes, for example,SKU, path, Etc., were given backend type "static" in classMage_catalog_model_resource_eav_mysql4_setup. But I failed to find outWhat static meant here, or I did not know what the difference wa
foreach (Array (' _cookie ', ' _post ', ' _get ') as $_request) {foreach ($$_request as $_key => $_value) {$_key{0}!= ' _ ' $$_key = daddslashes ($_value);}}$_request is a built-in variable for PHP, right? What do you mean, $$_request?
Uppercase is the super global variable of PHP$_requestIn the code above, $_reque
What does error code 451 mean? Page error code representative reason
People who often surf the internet will encounter a 4XX series of HTTP error codes, such as 404 Not found the server is not found, 403 forbidden the site denied access.
According to foreign media reports, the Internet Engineering Steering Committee (IESG) recently officially approved a new HT
Note: Airpods only supports the latest iOS 10, watchOS 3, MacOS, or Sierra system versions of the device.
According to a US Science and Technology blog website, Airpods does not use any magic wireless technology, but is the Bluetooth technology used in most wireless headphones, but the Apple has been enhanced, such as the built-in W1 chip, and then through specific software to achieve automatic connection with the phone.
Overall, the airpods operati
$level 1=pdo_fetchall (' Select ID from '. TableName (' Shop_member '). ' Where agentid= '. $member [' id ']. "' ', ' id ');$level 2=pdo_fetchall (' Select ID from '. TableName (' Shop_member '). ' Where Agentid in ('. Implode (', ', Array_keys ($level 1)). ') ', ' id ');1th: Statements end up with a, ' id ' what does that mean?2nd: Where Agentid in ('. Implode (', ', Array_keys ($level 1)). ') ', ' id ' do
What does $this $function () mean in PHP?
Brothers, recently the younger brother is looking at the code of the daily purchase, the result in/modules/index.mod.php see such a piece of code:
PHP Code
function ModuleObject ($config) { $this->masterobject ($config); $runCode = Load::modulecode ($this); $this $runCode (); }
)
Is this resolved used to mark whether the corresponding type name has been resolved?
Yes.
You tracked this variable.
public function make($abstract, $parameters = array()){ $abstract = $this->getAlias($abstract); $this->resolved[$abstract] = true;
It seems that this variable is the only place in the Framework ....
It's a counter, no more.
View::make(...),App::make('foo')
$resolved = array('view'
What does href = # In the link mean,
Link to the current page.-------------------It is usually used as follows::Linking href = "#" means connecting to the current page is meaningless, and the page will not be refreshed. The key is the onclick next. When you click "close", th
What do you mean by HDMI?
HDMI English full name 〖high Definition Multimedia Interface〗 is a digital video/audio interface technology, is a special digital interface suitable for image transmission, it can transmit audio and video signals at the same time, the highest data transmission speed
usually in the form of a complement. In the complement ( -128) d instead of ( -0) d, note: ( -128) d does not correspond to the original code and the inverse code, ( -128) d = (1000,0000) B.Calculation of the complementThe complement operation does not consider the symbol bit, the original code of the people take the reverse, and in the bottom plus 1 to get. The complement of a number is the inverse number of the number.If the operator in the!~names.
User question: What does TCP mean? Full resolution of the meaning of TCP protocol
TCP refers to Transmission Control protocol. It is a link-oriented, reliable and byte-throttling communication protocol for Transport layer. And in contact with TCP UDP,UDP is also an important transport protocol. TCP provides timeouts,
This article mainly introduces the meaning of isU in preg_match in php. For more information, see the meaning of isU in case sensitivity, here, s still does not include line breaks, while U reverses the matching quantity so that it is not the default repetition. this is probably the way we read the article.
What does the/(. *)/isU and "isU" parameter after the
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4Rowsinch Set(0.00Sec We will find that values that are less than 3 bits long are automatically populated, and values longer than 3 bits are not populated. The following is the explanation for setting the width of the MySQL official website: MySQL also supports the option to specify the display width of integer values (for example, INT (4)) within parentheses after the type keyword. The optional display width specifies that the wi
Article Title: What does Symbian open source mean for Linux ?. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems and open source, among other basic categories, one of the most important news of the year, Nokia acquired all shares of Sybian systems, and open the source c
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