nested tours

In many databases, there is a simple syntax such as loop, which is no exception in oracle. Let's take a look at the nested loop in El and explain it out of the internal loop body with instance 2. The Code is as follows: Copy code PROCEDURE test (P_MSG out VARCHAR2) isBeginFor I in 1 .. 10 loopFor j in 1 .. 5 loopDbms_output.put_line ('I:' | I | 'J: '| j );EXIT jloop when j = 3;End loop jloop;End loop illoop;End; Instance

JavaScript binds this in a global function as a global object, and uses the same interpretation for nested functions. Let's look at a piece of JavaScript code nested with two-layer functions: The Code is as follows: Var me = {Name: 'jimbor ',Blog: 'http: // jmedia.cn /',SayMyName: function (){Var pre = 'My name is :';Function displayName (){Alert (pre + this. name );}DisplayName ();}}Me. sayMyName (); F

Detailed description of ASP. NET's method for extracting multi-layer nested json data, asp. netjson This example describes how ASP. NET uses the third-party class library Newtonsoft. Json to extract multi-layer nested json data. The example is as follows. Assume that the json string to be extracted is as follows: {"name":"lily","age":23,"addr":{"city":guangzhou,"province":guangdong}} Reference namespace fir

(Nested view in ScrollView) Call method of onTouchEvent in overlapping view, ontouchevent In the code of the custom cropping window in front of me, I put the cropping view in a large scrollview, so that the program can only trigger the scrollview and cannot operate on the cropping window. So I added the last two pieces of code below the blog. In fact, when I encountered this problem, I added an Edittext in a scrollview. I restricted the height of Edit

The PHP tree code can be nested at any layer. Can PHP tree code be nested at any layer? File: The main function used to create a tree. the passed parameter is the root node number and the root node title functioncreate_tree ($ rootid, $ roottilte) {print_par PHP tree code. any layer can be nested. File: // The main function used to create a tree. the passed param

PHP nested output buffer code instance This article mainly introduces PHP nested output buffer code instances. This article describes examples of nested functions using ob series functions. For more information, see PHP output cache can be nested. You can use ob_get_level () to output the

The nested loop of Oracle table connection executes a query SQL statement in the database system. If this query only operates on one table, it only involves access to this table and associated objects. There are usually three access methods: full table scan, full index scan, and index scan. If the query operation is performed on two or more tables, the connection between the tables to be operated becomes crucial. When the database system executes this

First look at the following code:int main () {Double *p;printf ("sizeof (int):%d\nsizeof (Double):%d\nsizeof (PTR):%d\n", sizeof (int), sizeof (double), sizeof (p));GetChar ();return 0;}The result is:I am running on a 64-bit machine and can see that the int type is assigned 4 bytes, a double type of 8 bytes, and a pointer of 4 bytes./**********************/Then look at the following code:/***************** Empty Class ****************/#include Class a{};int main () {A;printf ("sizeof (a)%d\nsize

Use thrift and php as the client. The thrift protocol is as follows: {code...} the call code is as follows: {code...} isn't thrift -- genphp: rest does not support nested struct parameters? Use thrift and php as the client. The thrift protocol is as follows: servicestruct A{ required i32 a1}struct B{ required i32 b1, required A a}service TestService{ resa testa(1:required a reqa); resb testb(1:required B reqb);} The call code is as fol

When you plan to fill out an Excel table, the conventions are filled in JSON format for complex types of data. For example, the content of column D is JSON data.The JSON in the cell is as follows.{ "name":"BeJson2", "URL":"http://www.bejson.com", "page": the, "Isnonprofit":true, "Address": { "Street":"Science Park Road.", " City":"Suzhou, Jiangsu", "Country":"China" }, "links": [{ "name":"Google", "URL":"http://www.google.com" }, {

I. Concept of nested subqueries:In SQL, a select-from-where statement becomes a query block. Nesting a query block in the WHERE clause of another query BlockIn a condition of a having phrase, such a query is called a nested query or a subquery. For example:From student sWhere S. SnO IN(Select SnO from SC where CNO = '1 ')The preceding hql statement generated in the hibernate background is:SelectStudent0 _.

Normal Class (Non-nested Class) can only is public, abstract or final. For nested classes, the static is allowed.Nested classes (private, public, protected), 2 Categories.1. Static Nested Class (Very Different from C # Static Class)Alpha:have access to all the static members of its parent class.Beta:can instantiate objects by New Parentclass.staticnestclass (). N

MongoDB Introduction to nested queries in each document don't know where to hide, anyway I didn't find, a chance to find a post on the web, finally know the use of nested queries. So one of the problems in our application has been solved. Don't talk nonsense, now say the use of nested queries. Suppose there is a collections in the MongoDB, and the data is as fol

When a database contains a large amount of data, and the information we need is no longer limited to the data in a single table, we need to query the table for information and then combine it into multiple tables. To solve such problems we usually use nested Query method, first executes the internal subquery and then the subquery results as the outer query data source, and finally on the basis of the main query. This would be equivalent to a two-time

There are tables in the table that are nested tables. Web page layout is sometimes very complex, in the external need for a table to control the overall layout, if the details of the internal typesetting through the general form to achieve, easy to cause the row Gaolekuan conflict, the production of the table to bring difficulties. Second, the browser in the resolution of the page, is the entire structure of the Web page after downloading the table,

Sometimes, we run into situations where I end up with a maybe within the context of another maybe. Nested structures like this can get really confusing to work with. In this lesson, we'll look at a example of this and see how can help us off by chain flattening the nestedMaybeAs we all know, inside a array return another array is nested array.Inside observable return another observable get observable of obs

Each name in a C + + program must point to a unique entity (such as an object, function, type, or template). But we all know that in a program, the same name often appears pointing to different entities. The mechanism for this implementation is that the compiler has different meanings for names based on the context area. The general context used to distinguish the meaning of a name is the domain (scope). C + + supports three forms of domain: Local domain, namespace domain (namespace scope), and

Most of the time we see JSON data nested in multiple layers, like this:{"name":"Orange Mulberry", "Sex":"male", " Age": -,"Grade":{"Gname":"three years and eight classes", "Gdesc":"third day grade eight class" } }To get the JSON data of the above type, it is the following steps:1. Database queriesSql:select S.name,s.sex,s.age,g.gname,g.gdescFrom Student S,grade gwhere s.gid = G.gid; (You can also choose to use the internal connectio

To do a high number of teaching assistants by the evil spirit of the freshman students pit, found to be an unresolved problem, no analytic solution.With C, that's it ...No closed-form expression is known for this constant (Finch 2003, p. 8; S. Plouffe, Pers Comm, 29, 2008)./******************************************@: Nested Radical Constant Nested radical constant *@: http://mathworld.wolfram.com/ nestedra

content 1. Function Nesting call: You can use the main function to solve the whole problem, it calls to solve the small problem of the function, and these functions have further calls to solve the smaller problems of the function, so as to form a nested call of the function, the use of structured thinking, so that the code looks clearer, the structure is clear. 2. Recursion: With the function of nest