teradata views

Concept | view A view is a transformation of the original database data and is another way to view the data in the table Way. A view can be viewed as a moving window through which you can see the interesting Data. Views are obtained from one or more actual tables, where data is stored in the data Library. The table that is used to produce the view is called the base table for the view. A view can also be from the Generated in another view. The

oracle| Concept | view | data | The database view is a transformation of the original database data and is another way to view the data in the table. A view can be viewed as a moving window through which you can see data of interest. Views are obtained from one or more actual tables, and the data for those tables is stored in the database. The table that is used to produce the view is called the base table for the view. One view can also be generated

Requirement: Splits a string that uses a delimiter connection for a fixed number of digits, such as splitting a record 215|482|850|870 into 215,482,850,870 four recordsResult: The WITH RECURSIVE statement is capable of implementing this function and

Introduction of views and view 1,views ((1) Views are the main container of application. There can be only one views in an application.(2) The views are also the containers for all View (excluding Modal and Panel). 2,view ((1) View in the application is a separate part, it

Tags: from why min Insert user data default function mail22nd chapter-Working with viewsThis chapter describes what the views are, how they work, and when to use them. We'll also see how to use the view to simplify some of the SQL operations performed in the previous section.22.1 viewsRequires MySQL 5 MySQL 5 added support for view. Therefore, the contents of this chapter apply to MySQL 5 and later versions. The view is a virtual table. Unlike a table

[Reproduced from: http://soft.yesky.com/lesson/100/2342100.shtml] We can summarize the contact information as follows: (1) The document retains the View list of the document and the pointer to the document template that created the document. The document has at least one associated view, and the view can only be associated with one document. (2) The view retains the pointer to its document and is contained in its parent frame window; (3) The document Framework Window (I .e. the MDI chi

Tags: http using ar for data sp Div on Cmaterialized views for data replicationOne of the main functions of materialized views is for data replication, Oracle's advanced replication capabilities are divided into two parts, multi-master replication and materialized view replication. 　　Materialized view replication is the function of materialized view. 　　Materialized view replication contains only read-only v

ObjectiveIn the previous section we discussed some of the limitations and recommendations in the view, which we talk about using schemabinding in UDFs and views, short content, in-depth understanding, always to review the basics.SCHEMABINDINGIn the previous section we talked about the need to specify schemabinding when creating an index on a view, so it is necessary to get to know the next bit of knowledge before continuing. What exactly is schemabind

Back to CatalogIn the MVC, your controller corresponds to the view is generally in the views directory, and if you want to be divided into a few modules folder by default is not allowed, we need to do a set, you can achieve the multiple folder hierarchy under Views, for example, we have product modules, user modules, order module, We can design the folder structure as followsUser module:/

This article transferred from: http://www.binaryintellect.net/articles/218ca630-ba50-48fe-af6e-6f754b5894aa.aspxMost of the Times ASP. NET MVC views is rendered as a result of the user navigating to some action. For example, if a user navigates to/home/index in the browser (either through address bar or through a hyperlink), ASP . NET MVC executes the action method and usually returns a view to the browser. This means each view was rendered as a resul

The first way of view trilogy: Using a Blend (mixins):serialize.pyclass authormodelserializers (serializers. Modelserializer): class Meta: = Author "__all__ "urls.pyURL (r'authors/$', views. Authoview.as_view (), name="authors"), url (r'authors/(? p', views. Authordetailview.as_view (), name="authordetail")views.py fromRest_frameworkImportmixins fromRest_frameworkImportgenericsclassAuthovi

In a single-Document Interface (SDI) application created with the Microsoft Foundation Class (MFC) library, each document type is associated with a single view type. in some cases, it is desirable to have the ability to switch the current view of a documentWith a new view. Tip For additional procedures on implementing multiple views for a single document, seeCdocument: addview andCollect MFC sample. You can implement this funct

the use of functions, such as the addition of redundant fields.2. If you really want to use functions, such as the formatting of time, priority is placed on the business logic layer rather than in the SQL query statement.3. The biggest disadvantage of using a function when querying is that if you are querying a column, the column uses a function and the column will no longer use the index.Second, Views (view)In the query, we often look at the results

A view is a virtual table whose contents are defined by a query. As with a real table, a view contains a series of column and row data with names. However, the view does not exist in the database as a stored set of data values. Row and column data is derived from the table referenced by the query that defines the view, and is generated dynamically when the view is referenced. The view acts like a filter for the underlying table referenced in it.A filter that defines a view can come from one or m