olap cube sql server

male studentsFrom TblstudentWhere tsgender= ' man 'GROUP BY TsclassidHaving COUNT (*) >5ORDER BY male number ASC--Sort--5>select 5.1 Select column, 5.2>distinct,5.3>top (apply top option last calculated)--1>from table--2>where conditions--3>group by column--4>having Filter Criteria--6>order by column --Note: The order in which the SELECT statement comes out--The following shows the order in which the SELECT statement is processed--1.from--2.on--3.join--4.where--5.group by--6.with |

the view to the underlying base table. If the SELECT statement in the view definition specifies a GROUP by clause, the key for a unique clustered index can only refer to the column specified in the GROUP by clause. The SELECT statement in the view cannot contain the following Transact-SQL syntax elements:The select list cannot specify columns using the * or table_name.* syntax. You must explicitly give the dequeue name 在创建索引视图的select语句中，不能存在重复的列名 A v

View Restrictions To create an index on a view in SQL Server 2005, the corresponding view definition must include: Any, not any OPENROWSET, OPENQUERY, OpenDataSource Arithmetic OPENXML on imprecise (floating, real) values COMPUTE, COMPUTE by CONVERT generates an inexact result OUTER join COUNT (*) refers to a base table with a disabled clustered index GROUP by all references tables or functions in di

In a large number of programming languages, code is processed in coded order, but in the SQL language, the first processed clause is the FROM clause, although the SELECT statement appears first, but is almost always finally processed. Each step produces a virtual table that is used as input to the next step. These virtual tables are not available to the caller (client application or external query). Only the table that is generated in the last step i

we use a undocument query prompt directly to the statement, forcing the parallel cost threshold for the query to be dropped to 0, forcing the statement to go in parallel, and the statement execution time from 20 seconds to 5 seconds (note: Use a hash join hint for 7 seconds). The following is a simple example showing the effect of using this hint, example T-SQL as shown in Listing 1: SELECT * from [adventureworks].[ Sales]. [SalesOrderDetail] A I

Brief introduction After half a day of effort, today finally installed the SQL Server2012. Follow the new information in MSDN (Columnstore Indexes for Fast DW QP SQL Server 11). Tried the next Columnstore Index. Columnstore index is shown in its literal meaning. Is the index that is based on the column store. The concept is shown in Figure 1. Figure 1. Column

on the statement, which causes the parallel cost threshold of the query to be reduced to 0, which forces the statement to go parallel and the statement execution time from 20 seconds to 5 seconds (note: Using the hash join hint is 7 seconds). The following is a simple example of the effect of using this hint, as shown in Listing 1 of the sample T-sql: SELECT *FromINNER JOIN [Sales]. SalesOrderHeader b on A.salesorderid=b.salesorderid Code Listing 1.T

SQL Server database design specifications (1) 1. Introduction Database Design refers to constructing the optimal database mode for a given application environment, establishing a database and other application systems, so as to effectively store data and meet the needs of various users. Naming Conventions are very important in the database design process. Rational naming conventions can save developers a l

Server As Microsoft's next-generation data management and business intelligence platform, SQL Server 2005 will be Microsoft's 5-year milestone in enterprise-class database products. Compared to previous data solutions, SQL Server 2005 gives you unprecedented value, superior

developers to be in Microsoft Visual Studio? To create a natural English interface for SQL Server. In addition, English queries can now generate multidimensional Extensions (MDX) to query online analytical processing (OLAP) cubes. It takes a few mouse clicks to deploy English queries on the Web. SQL

per server Number of locks per instance of SQL Server 5 Up to 2,147,483,647 Limited by memory only Number of nested stored procedure levels 6 32 32 Number of nested subqueries 32 32 Number of nested trigger layers 32 32 Number of nonclustered indexes per

Original: SQL Server Tuning Series Basics (Summary of common operators)ObjectiveIn the previous article we looked at how to view the query plan, this article will introduce the analysis techniques in the query plan we looked at, as well as several of our commonly used operator optimization techniques, the same emphasis on the master of basic knowledge.In this article, we can understand how we normally write

Label:Original: SQL Server Tuning Series Basics (Summary of common operators)ObjectiveIn the previous article we looked at how to view the query plan, this article will introduce the analysis techniques in the query plan we looked at, as well as several of our commonly used operator optimization techniques, the same emphasis on the master of basic knowledge.In this article, we can understand how we normally

1.Select QuerySELECT * from users queries the user table for all informationSelect Name,age as age from users Where name= ' Zhangsan ' and age=10 increase query conditionsSelect A to UserInfo results insert into a new tableSelect name from the users order by age desc, Num desc sort desc Descending asc AscendingGROUP BY group query AVG (column name) average Coung () Total rowGroup queries based on different employee categories how many people belong to different employee classesSelect COUNT (*) a

Tags: return server SQL Servers join High Availability toolbar Service data column The son said: "Wen so know new, can for the teacher." Confucius said: "Brush up on old knowledge to learn new understanding and experience, with this point can become a teacher." "In particular, we have a program, whether it is a full stack of engineers, are set terrorize in one." But sometimes some knowledge if ther

Tags: blog http os io re c HTML workTook some time to complete the look over, feeling that this is a concise version of the reference book, there are many demos can be done in full, basically involved as all functions, can have a holistic understanding of as, about the last chapter--defining administrative roles--did not actually complete the operation, limited knowledge Limited, after looking for the garden of the gods, found the invitation to the studio has two articles about this article intr

stored procedure the smaller batch size, or the smaller of the size of MB batch, or MB. The number of clustered indexes in each datasheet 11GROUP by, the number of columns in the order by is limited by the byte number of each GROUP by, ORDER BY clause To limit the number of columns or expressions in a group by with CUBE or with ROLLUP statement by the number of bytes per group BY, or by clause 10 the number of columns per index 1616 the number of col

DATABASE [ReportServer] on PRIMARY(NAME = n ' reportserver ', FILENAME = N ' D:\Microsoft SQL server\mssql10. Mssqlserver\mssql\usedata\reportserver.mdf ', SIZE = 3328KB, MAXSIZE = UNLIMITED, filegrowth = 1024KB)LOG on(NAME = n ' reportserver_log ', FILENAME = N ' D:\Microsoft SQL server\mssql10. Mssqlserver\mssql\use

One, what is the index One of the best ways to reduce disk I/O and logical read times is to use the index The index allows SQL Server to look up data in a table without having to scan the entire table. 1.1, the advantages of the index: Become a heap or heap table when the table does not have a clustered index "Heap" is a bunch of unprocessed data, with a row identifier as a pointer to the storage locati

query time is proportional to the total length of the field value, so you cannot use the char type, but the varchar. A full-text index that is long for a field's value. 9, DB Server and Application Server detach, OLTP and OLAP detach 10, distributed partitioned views can be used to implement a federation of database servers. A consortium is a set of separately