create views mysql

22nd 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 transactions and views, MySQL transaction views 　　　　　　　　　　　　　　　　Transactions 1. Concept A set of one or more SQL statements!Transactions: a collection of operations. They are born together. Either the execution is successful or the execution

Mysql-views, stored procedures, triggers, and mysql-Views I. VIEW A view is a virtual table and does not store any data. Only the running time contains the dynamically retrieved data. Eg: SELECT sid, name, sex, s_num FROM student, school WHERE sid =

MySQL 21-29 highlights: Views, triggers, stored procedures, cursors, transaction processing bitsCN.com 21. create and operate tables 21. 1. create a table Create table: 1) Name of the new table, after the keyword CREATETABLE 2) names and definitions

Henan College of Traditional Chinese Medicine Course Design Report of MySQL Database Management  Title: Research and Implementation of MySQL Clusters       Completion date:2012January 1, December 31   Contents 1. Course Design overview 3 2. research

21. create and operate tables 21. 1. Create a table Create table: 1) Name of the new table, after the keyword CREATETABLE 2) names and definitions of table columns, separated by commas Create table MERs ( Cust_id int not null

Introduction to IndexesAn index is a decentralized storage structure created to speed up the retrieval of rows of data in a table. Indexes are built on tables and are made up of index pages other than data pages, and the rows in each index page

A Common loops in MySQL stored procedures1.while loop: While ..... Do ..... END whileExample 1:Create stored procedures (for 1+2+.......+num and):To create a success, make a call:Show Results:2.REPEAT loop: REPEAT ..... Untll END REPEATExample 2:To

Index What's the view? Why do I need a view Rules for working with views How to use views View Application Instance Don't update your data with views! What's the view?The best way to understand a view is to look at

Mysql View1. Introduction to the View1) Meaning of the view:A view is a virtual table. Unlike a table that contains data, a view contains only queries that retrieve data dynamically when used.2) Why use Views:Reuse SQL statements.simplifies complex