invisible separator

Difference between Oracleindexunusable and invisible Extracted from the 11g Official Document: UNUSABLESpecify UNUSABLE to mark the index or index partition (s) or index subpartition (s) UNUSABLE. the space allocated for an index or index partition or subpartition is freed immediately when the object is marked UNUSABLE. an unusable index must be rebuilt, or dropped and re-created, before it can be used. while one partition is marked UNUSABLE, the othe

11g new feature _ visible and invisible Index When you want to evaluate the impact of an index on your SQL query statement, when your database is 11 GB, you can quickly set the index to VISIBLE or INVISIBLE. In commendable cases, when the index is set to invisable, the index will be maintained as usual when the DML statement occurs. That is to say, the index in the invisable state is not invalid, the optimi

Viewable (visible)XML file: android:visibility= "visible"Java code: view.setvisibility (view.visible);Not visible (invisible)XML file: android:visibility= "Invisible"Java code: view.setvisibility (view.invisible);Hidden (GONE)XML file: android:visibility= "Gone"Java code: view.setvisibility (View.gone);Visible: Setting controls VisibleINVISIBLE: Setting controls not visibleGONE: Setting Controls to hideThe

Escape from Your Shawshank (v): Invisible Cage (ON) Notes 0, the so-called psychology is about how the human brain work science, since the Society is composed of a person, and the human behavior is largely dominated by our brains, then from this fundamental to understand a lot of problems will be very deep essence. 1, "Clark's First Law": "If a respected old scientist tells you that something is possible, then he is probably right." But if

When you want to evaluate the impact of an index on your SQL query statement, when your database is 11 GB, you can quickly set the index to visible or invisible. In commendable cases, when the index is set to invisable, the index will be maintained as usual when the DML statement occurs. That is to say, the index in the invisable state is not invalid, the optimizer does not select the index path. The following is an experiment to verify: SQL> select

I want to ask what people do most in their work or spare time, without a doubt, they must be surfing the Internet, but only surfing the internet will inevitably result in virus intrusion, therefore, how to effectively prevent viruses is very important, because only by understanding the characteristics of viruses can we effectively reject them from the Internet, let's talk about the five "invisible viruses" in the webpage code to ensure the security of

various solutions to various phenomena. Unfortunately, most people choose stealth. What can this solve? No, no, absolutely no Yes. You must never think that you are invisible and nobody knows. In particular, some people are invisible while sending status! Some people not only hide contacts, but also hide groups Body. It is really painstaking. Some people are looking for you to show up immediately, and then

JS automatically format the input number/thousands separator

First of all, tell the difference:File.pathseparator refers to separators that separate successive paths of strings, for example:JAVA-CP Test.jar;abc.jar HelloWorldThat means ";"File.separator is used to separate directories in the same path string, for example:C:\Program Files\Common FilesThat means "\"　　Separatorcharpublic static final Char SeparatorcharThe system-related default name delimiter. This field is initialized to the first character that contains the system attribute File.separator

Several Methods to separate strings are summarized as needed: 1. Separated by strings: Using system. Text. regularexpressions; String STR = "aaajsbbbjsccc "; String [] sarray =RegEx. Split(STR, "JS ",Regexoptions. ignorecase); Foreach (string I in sarray) response. Write (I. tostring () + " Output result:AaaBbbCCC 2. Separate multiple characters: String STR = "aaajbbbscccjdddseee "; String [] sarray = Str. Split (New char [2] {'J','s '}); Foreach (string I in sarray) respon

The Javascript regular expression is used to add a thousand-bit separator for a number and a thousand-bit javascript Recently, I saw an interview (written test) question about how to use JavaScript to implement thousands of Separators of numbers. So I wrote a method to implement it using "Regular Expression + replace: Copy codeThe Code is as follows:Var thousandBitSeparator = function (numStr ){Var B =/([-+]? \ D {3 })(? = \ D)/g;Return numStr. replac

When I wrote a module today, I accidentally found a problem. Some regular expression separators in C # cannot be used. For example:System. Text. regularexpressions. RegEx r = new system. Text. regularexpressions. RegEx ("($ )") Or:String [] strarray = system. Text. regularexpressions. RegEx. Split (inputstring, "$ ") These two statements are incorrect, that is, they do not serve as the separator you expect.I tried it for a moment. Among these spe

I. Separated display strings in Javascript keyup(function () { this.value = this.value.replace(/[^\w{8}\d{8}]/g, "").replace(/(\w{4})(?=\w)/g, "$1 "); }); Effect: Ii. Implement separator strings in C # static void Main(string[] args) { //int count = 13; //int spt = 4; //var xx = Math.Ceiling((double)count / spt); //Console.Write(xx); string str = "K

+ (nsstring*) Strmethodcomma: (nsstring*) string{Nsstring*sign = nil;if ([stringhasprefix:@ "-"]| | [String hasprefix:@ "+"]) {sign = [string substringtoindex:1];string = [string substringfromindex:1];}Nsstring*pointlast = [string substringfromindex:[string length]-3];Nsstring*pointfront = [string substringtoindex:[string length]-3];int commanum= ([Pointfront length]-1)/3;Nsmutablearray *arr = [Nsmutablearray array];for (int i =0; i int index = [Pointfront length]-(i+1);int leng = 3;if (Index {L

This article is mainly for you in detail the WPF Collection Control implementation delimiter ItemsControl Separator, with a certain reference value, interested in small partners can refer to In WPF collection controls, it is often necessary to insert a delimiter style between each collection item, but WPF's ItemsControl does not have a direct implementation of the related functions, so only consider the curve to salvation, after study, probably think

Before using Delphi to develop the software, if you need to place a divider line on the interface, its tbevel can meet this requirement well. Now turn to the. NET platform, you can not find the corresponding control (after all, every time in the paint incident painting too much trouble). And if Use panel, GroupBox, label to realize indirectly, the effect is not ideal, and feel strange. So you decide to implement a separator line control yourself, as s

Php constant DIRECTORY_SEPARATOR usage in-depth analysis, separator This example describes the usage of the constant DIRECTORY_SEPARATOR in php. Share it with you for your reference. The details are as follows: What does DIRECTORY_SEPARATOR mean in php? When is it most reasonable to use DIRECTORY_SEPARATOR? The following describes the php DIRECTORY_SEPARATOR constant. We know that DIRECTORY_SEPARATOR is a PHP constant that represents a backslash, beca

Several methods of CSS multiple ways to implement separator lines

The commands in makefile must start with the tab key. Today I wrote a simple makefile, which always mentions missing separator. The makefile written a few days ago can still be executed, but it cannot be executed now. It is probably because I configured Vim some days ago. Therefore, in the tab key configuration options in. vimrc, exclude one by one and test whether makefile can be executed one by one. When the set smarttab is commented out, The ma

Sometimes we deal with delimited data text files. For example, use the data delimited by "," and here's how to read a separator text file using LINQ the following figure: nbsp; Then they are stored in a text file with columns: The code is as follows: The first name is last name Job Title City Country nbsp; nbsp; Before we read this file, we build an entity class: nbsp; code is as follows :///; public class customer{public string Firstname {get; Se