animated cursors

Cursors are often used in a PL/SQL program for transactions that handle multiple rows of recordsA bit like a JAVA iterator1 use of cursorsDefining cursorsOpen cursorExtracting cursor dataClose CursorsNOTE: A defined cursor cannot have an into statement2 using Cursors-- print out The wages of all employees in the departmentDeclareV_sal Employees.salary%type;-- defining

= ' 2008-2009 ' and t.id_ = everyrow.id_; end Loop; commit; End; The above is an introduction to the use of cursors to the example, we first introduce about cursor usage Categories of cursors: Static cursors and dynamic cursors 1. Before the description of the cursor classification, first explain t

Here's how to use an implicit cursor, and under what circumstances, to use a display cursor: 1. Query returns a single line of records → implicit cursors; 2. Query returns multiple-line records and process-by-row → explicit cursors --Display Cursor properties Declare CURSOR cur_emp is a SELECT * from EMP; Row_emp Cur_emp%rowtype; BEGIN OPEN cur_emp; FETCH cur_emp into row_emp; While Cur_emp%found

This article is a partial translation of the official document, removing examples from the original text and adding a few examples at the end. Interested friends can click the link at the end of the article to read the official documentation.First, the definition of a cursorA cursor is a pointer to a private SQL region that stores information about the processing of a particular select or DML statement. The cursor explained in this chapter is a session cursor. A session cursor exists in the sess

. CursorsWhen you execute a query statement select and data manipulation statement DML in a PL/SQL block,Oracle assigns it a context area, which is a pointer to the context area.For data manipulation statements and single-line SELECT INTO statements, Oracle assigns them an implied cursor.Use display cursors to process multiple rows of data.3.1 Displaying cursor operations3.1.1 Defining cursorsSyntax: Cursor cursor_name is sub-query;Example 1:DeclareCu

#静态游标指的是程序执行的时候不需要再去解析sql语言, the parsing of SQL statements can be done at compile time.Because the dynamic cursor contains parameters, parsing of the SQL statements must wait until the parameters are determined to complete.From this point of view, the efficiency of static cursors is also higher than that of dynamic cursors.#游标的相关概念:Defined:Cursor It is a server-side storage area that is available to the use

Label:There are two types of cursors in Oracle: Explicit cursors, implicit cursors. The display cursor is a cursor defined with the cursor...is command, which can process multiple records returned by a query statement (SELECT), whereas an implicit cursor is a query that performs an insert (insert), delete, modify (update), and return a single record ( Select) sta

With the new features of CSS3, we have greatly increased the likelihood of creating good interactions and effects. In this article, I would like to share with you some CSS3 animation button effects. Our idea is to create a number of animated link elements with different styles, animated and active when hovering over the mouse.Effects Demo Plugin DownloadHTML Sample code: CSS Sample code: . a-btn{background

"@keyframes" beginning, followed by the "name of the animation" plus a pair of curly braces "{}" , the parentheses are some of the different time-period style rules, a bit like our CSS style. For example: @-moz-keyframes name{ 0% { -moz-transform:rotatey (0deg) Rotatex (0deg) Rotatez (0deg) Translatez (0px); } 25% { -moz-transform:rotatey (90deg) Rotatex (0deg) Rotatez (0deg) Translatez (0px); } 50% { -moz-transform:rotatey (180deg) Rotatex (0deg) Rotatez

. Animate (Params,[speed],[easing],[fn])params,[speed],[easing],[fn]options,number/string,string,functionv1.0Params: A set of style properties and their values that contain the animated and final valuesSpeed: A string of three predetermined speeds ("slow", "normal", or "fast") or a millisecond value that represents the duration of the animation (for example: 1000)Easing: The name of the erase effect to use (requires plug-in support). The default jquer

Animated events. Hide (option) animation hides the original property value of the element$ ("#a2"). Hide ({duration:3000,Complete:function () {Alert (' Perform 3000ms animation complete ')}}). Show (option) animated displayThe show and hide methods are modified by the display property, which is required by the Visibility property layout to be set separately through the CSS methodIf you use!important in your

"Original short film" (Theatrical shorts) part 16"Andrew and Willie Adventures" "Naughty Jumping Lights" "Red Dream" "Tin Toy" "Snow people Action" "Match" "Bird!" Bird! Bird! "Jumping sheep" "The Light Pole Band" "Kidnapping Class" "Magician and Rabbit" "Violence cloud and send son stork" "Day and Night" "Moon God" "Blue Umbrella Love" "Magma""Animated long film Derivative article" (Home Entertainment shorts) Part 7"Big eyes new Car" "Little Jack Att

Delphi inserts GIF animated expressions into the RichEdit controlIn the UDP instant messaging software, a GIF animated expression is inserted into the RichEdit control.Convert the facial expression into a command when sending it. After receiving the command, convert it into an animated facial expression.You need to reference a qq dll file in the attachment. Impor

Animation jump between two pages ., Animated jump of two pages The jump between two pages is animated. The results are good. First, go to the project overall diagram. 2. Add the code. AppDelegate. m file - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{ self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // O

The example described in this paper mainly accomplishes the function of color cursor, animated cursor and custom cursor in dotnet. The following is a complete program instance that can be seen by command-line compilation to see how it works.The Test.cs page code is as follows:Using system;using system.drawing;using system.windows.forms;using system.runtime.interopservices;using System.reflection;namespace colorcursor{//It is believed that the examples

For the users of Photoshop software, share a tutorial on making a magnifying glass to scan an animated picture of an object. Tutorial Sharing: One, the following is the process, I first found a small donkey, very Meng is not it? Second, right after a new document in PS, Ctrl + V paste. Third, ctrl+alt+i open the canvas size, change the following pixel to a percentage, narrowing by half. Four, Gauss blur a little bit.