olap cube sql server

SQL Server learning-Summary of SELECT statements (1) logical order of query processing (return result list (01) FROM Table (] basic component of SELECT statement Setp1: the table name can be specified in the [FROM] from clause. In this step, SQLServer lists the tables used by the select statement. If the join table is specified, it is listed together. SQL

index on the indexed view (not the index on the original table).Indexed views are supported on various editions of SQL Server 2012, and query processors in either the development or Enterprise editions can even optimize queries that match indexed views.The indexed view must be built with the with SCHEMABINDING to ensure that the fields used are not modified.If the indexed view contains a GROUP by clause, y

, consumption of space. Like ' a% ' uses the index like '%a ' when querying with like '%a% ' without an index, the query time is proportional to the total length of the field value, so the char type is not used, but varchar. The full-text index is long for the value of the field. 9. Separation of DB server and application server; OLTP and OLAP separation 10. A di

value, so you can't use char type, but varchar.built-in full-text index for long values of fields。9.DB Server and Application Serverseparation; OLTP and OLAP separation10.Distributed Partitioned viewsCan be used to implementDatabaseServer Federation. A consortium is a set of separateManagementservers, but they work together to share the processing load of the system. This adoptionPartition DataThe mechanis

information about logging on to SQL Server, see the "Sign in" section of the SQL Server 2000 Books Online. To make the instructions clear, the baseline development and application platform used is Microsoft Windows? 2000 operating systems and SQL

Concept Introduction:1, Business Intelligence (INTELLIGENCE,BI), refers to the use of modern data warehousing Technology, on-Line Analytical Processing technology, data mining and data presentation technology for data analysis to achieve business value.Data Warehouse,dw is a subject-oriented (Subject oriented), integrated (integrate), relatively stable (non-volatile), reflecting historical changes (time Variant) data collection to support management decisions.on-Line Analytical processing (On-li

the cost of the compilation, the RECOMPILE option is used in the stored procedure or the RECOMPILE hint is used in an ad hoc query so that each query rebuilds the execution plan, which causes the resulting execution plan not to be inserted into the execution plan cache. For OLAP class queries, inaccurate execution plans tend to cost more than compilation costs, so you can consider this parameter or option, and you can use hint as shown in the query i

after you've processed historical data and report data, then add these new hardware, such as faster CPUs and hard drives, larger memory, and so on, but add new hardware postscript to modify your SQL Server configuration to accommodate these new hardware, such as opening/ 3G switch to use more memory. Scale out when scaling the up does isn't suffice or is cost-prohibitive. Use horizontal expansion When yo

This article describes in detail how to optimize SQL Server database queries. There are many reasons for slow query speed in SQL Server databases. The following are common causes: 1. No index or no index is used (this is the most common problem of slow query and is a defect in programming) 2. Low I/O throughput, res

In our OLAP implementation, SQL is extremely complex and uses a lot of temporary tables. During the installation of tempdb, the local disk path for SQL Server installation is selected by default, and no disk array is used. When learning PostgreSQL, we found that many experts suggest placing the temporary tablespace on

'' % a' without the index like ''% A %'', the query time is proportional to the total length of the field value, therefore, the char type is not supported, but varchar. Create a full-text index for a long field value. 9. Separate DB server and application server; Separate OLTP and OLAP 10. Distributed partition view can be used to implement Database

of CPU are most suitable for parallel processing. However, update, insert, and delete operations cannot be processed in parallel. 8. If you use like for query, you cannot simply use index, but the full-text index consumes space. Like 'a % 'when the index like' % a' is used and like '% A %' is not used for the query, the query time is proportional to the total length of the field value, so the char type cannot be used, but varchar. Create a full-text index for a long field value. 9. Separate DB

... Break loop statement3. Case4. Other statements SQL Server T-SQL advanced Query Basic common QueryNested subquery# From (select... Table) Example# In, not in Clause query example# Exists and not exists clause query examples# Some, any, all clause query exampleAggregate Query1. Remove duplicate data from distinct2. Summary query of compute and compute3.

There was an error deploying an SSAS project to the local server in SSDT You cannot deploy the model because the localhost deployment server isn't running in multidimensional mode. The reason for the error is that I only chose to install tabular mode when I installed SQL Server 2012 locally, and this demo project i

Problem: We look forward to automating tasks in our SQL Server Analysis Services server. Would you please explain to us how to use the profiling service in SSIS to perform DDL tasks (Analysis Services Execute DDL Task) details? Expert Answer: The Profiling service performs DDL tasks (Analysis Services Execute DDL Task) is a useful tool that allows you to do an

Process of each stage of SQL Server Query Processing Unlike other programming languages, SQL is most characteristic of code processing. In programming languages with large numbers, the code is processed in the encoding order, but in SQL, the first clause to be processed is the from clause. Although the first select sta

disk information (signature). For example, if the MSDTC resource is present, it is the same way of adding a new disk to the cluster, stopping the service, copying the data from the source disk to the new disk, modifying the disk signature, deleting the source disk, and modifying the drive letter. Start the service, OK.Also, be aware that:Or, in some cases, you need to add the SQL Server service account to

consumes space. Like 'a % 'when the index like' % a' is used and like '% A %' is not used for the query, the query time is proportional to the total length of the field value, so the char type cannot be used, but varchar. Create a full-text index for a long field value. 9. Separate DB server and application server; Separate OLTP and OLAP. 10. Distributed partiti

in the ad hoc query, the execution plan will be regenerated for each query, this parameter prevents the generated execution plan from being inserted into the execution plan cache. For OLAP queries, inaccurate execution plans often cost much more than compilation costs. Therefore, you can consider this parameter or option, you can use Hint as shown in the query in code list 1. SELECT * FROM Sales.CustomerWHERE CustomerID>20000 AND TerritoryID = 4OPTIO

Windows platform. It provides better support for. net programs and is sufficient for general applications. Basically, database products other than SQL Server are rarely used in the. net camp:. net + SQL SERVER + windowsOracle: Most platforms are supported, but the performance in windows is lower than that in