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Oracle Wm_concat () functionOracle Wm_concat (column) functions are often used, and below teaches you how to use the Oraclewm_concat (column) function to implement field mergingSuch as:shopping:-----------------------------------------u_id goods num------------------------------------------1 Apple 22 Pears 51 NBSP ; Watermelon 43 NBSP ; Grapes 13 NBSP , banana 11 Or

This article transferred from: http://www.cnblogs.com/ycdx2001/p/3502495.htmlWithTempAs(Select‘China' Nation,‘Guangzhou' CityFrom dualUnionAllSelect‘China' Nation,‘Shanghai' CityFrom dualUnionAllSelect‘China' Nation,‘Beijing' CityFrom dualUnionAllSelect‘USA' Nation,‘New York' CityFrom dualUnionAllSelect‘USA' Nation,‘Bostom' CityFrom dualunion allselect ' Select Goodsid,listagg (ss. Storageno,',') Group (by-Ssg.storageid= bygoodsid Select Goodsid,wmsys.wm_concat (ss. Storageno) Storageno from

In an Oracle database, you can use the Wm_concat (column) function to merge fields, and the following is a detailed introduction to the implementation of this feature for your reference.The Oracle Wm_concat (column) function allows us to use it frequently, and below teaches you how to use the Oracle Wm_concat (column) function to implement a field merge if you have an Oracle Wm_concat (column) If you are interested in the use of functions, you may wish to take a look.Shopping:-------------------

------------------------------------------ 1 Apples 2 2 Pear 5 1 Watermelon 4 3 Grapes 1 3 Banana 1 1 Oranges 3 ======================= The desired result is: -------------------------------- u_id Goods_sum ____________________ 1 apples, watermelon, oranges 2 Pears 3 Grapes, Banana --------------------------------- Select u_id, Wmsys.wm_concat (goods) goods_sum From shopping GRO

The Oracle Wm_concat (column) function allows us to use it frequently, and below teaches you how to use the Oracle Wm_concat (column) function to implement a field merge if you have an Oracle Wm_concat (column) If you are interested in the use of functions, you may wish to take a look.Shopping:-----------------------------------------U_ID Goods num------------------------------------------1 Apples 22 Pear 51 Watermelon 43 Grapes 13 Banana 11 Oranges 3

follows: Copy code $ Fruits = array ("Apple", "Banana", "Orange", "Pear", "Grape", "Lemon", "Watermelon ");$ Subset = array_slice ($ fruits, 3 );Print_r ($ subset );// Output// Array ([0] => Pear [1] => Grape [2] => Lemon [3] => Watermelon)?> Then we use the following negative length: Php code The Code is as follows: Copy code $ Fruits = array ("Apple", "Banana"

Look at a simple jquery example to traverse a JavaScript array object.varJSON = [ {"ID":"1","TagName":"Apple"}, {"ID":"2","TagName":"Orange"}, {"ID":"3","TagName":"Banana"}, {"ID":"4","TagName":"Watermelon"}, {"ID":"5","TagName":"Pineapple"}]; $.each (JSON, function (idx, obj) {alert (obj.tagname);});The code snippet above works fine, prompting "Apple", "orange" ... And so on, as expected.Problem: JSON stringIn the following example, a

In the real world, people characterize the world as an abstract class of things that have the same characteristics in many classes in the real universe. For example, fruit is a general term for many plant fruits, we can define an Apple class, define a watermelon class, can instantiate an Apple object, can instantiate a watermelon object, we can also define a fruit class, but you cannot instantiate a fruit o

: * 3 tools: crayons, kiwi pens, and cloths * Four colors for selection * Four Application sizes Just like a coloring book, let's give users a coloring object. My favorite is: The Watermelon Duck of Rachel Cruthirds ). Prepare HTML5 Canvas: marker Only one line of code can be used to create the canvas flag element: others will be implemented using scripts. ... HTML5 is still a new technology, and some browsers (?... That is, your IE) does not

", r.drawable.apple_pic);Fruitlist.add (Apple);Fruit banana = new Fruit ("banana", r.drawable.banana_pic);Fruitlist.add (banana);Fruit orange = new Fruit ("Orange", r.drawable.orange_pic);Fruitlist.add (orange);Fruit watermelon = new Fruit ("Watermelon", r.drawable.watermelon_pic);Fruitlist.add (watermelon);Fruit pear = new Fruit ("Pear", r.drawable.pear_pic);Fru

the part that determines the characteristic.In fact, when a person identifies something or a pattern, it is also by observing what kind of characteristic the object has, and then matching it with his experience and memory. For example, to go to the supermarket to see a fruit, suppose we observe that the fruit is green (color characteristic), spherical (Shape feature), with black texture (pattern feature). So we can tell by experience that this is a watermel