OLAP options in Oracle9 I Database Release 2 introduce the analysis workspace and truly integrate the relational and multidimensional data types in the same Database. So far, the only way for developers and DBAs to use the analytic workspace is to use command line API calls to manually build them. However, with the latest Analytic Workspace Manager (AWM) version, you can better utilize the multidimensional features in Oracle
How to monitor and optimize OLAP databases and monitor olap Databases
It is very important to optimize the performance of online analysis and processing. Fortunately, some tools can help monitor and improve the operation of OLAP databases.
The Microsoft SQL Server Analysis Service (SSAS) provides a powerful engine used to create and manage data mining applicatio
SAS Program has three types of errors:
Programing logic errors (how to identify and resolve );
Syntax errors (how to recogize ANC correct );
Data errors (how to examine and resolve.
How to write an efficient SAS Program:
Write code that is easy to read as much as possible (one line per sentence, indented layout, and comments more)
Test any part of the program
Test Program with a small dataset (for
Disk media in the storage area is the most critical device, and all data and information is stored on disk media. The reading speed of the data is determined by the connection interface of the disk media. We used to do data storage through SCSI or SATA interfaces and hard drives. But in recent years a new technology has increasingly been favored by small and medium-sized enterprises and even large enterprises. Is the SAS technology and its correspondi
OLAP introduction (combined with personal work), olap introduction combined with personalOLTP and OLAPTraditional database systems are OLTP and can only provide raw data operations. Analysis is not supported.
OLTP system: Performs online transaction and query processing. General supermarket invoicing system, functions: Registration, accounting, inventory and sales records, etc,
OLAP ClientFlexolapview User ManualOverview flexolapview component is a method for multidimensional analysis.FLASHcontrol, available through theXMLAstandard protocol connected toOLAPservers, such as: Microsoft'sSQL ServerAnalysis Server (MS ssas2005/2008) andPentahoAnalysis Services (Mondrianand so on, it can use the pivot table and a variety of charts to display multidimensional Analysis data for real-time business analysis. This article describes
Opening remarks:
I personally think that the entire SAS protocol family is large, and there are many concepts that are hard to understand. I can only study the actual code at work while reading the protocol in detail. In this way, we can better understand the SAS protocol.
It is the best way to understand the protocol according to the code. Think about all the protocols for data transmission. The communicat
Path to mathematics-sas memo (14), path to sas memo 14
Sas Date Format
Data _ null _;X = '7jan2012 'd;
Put x yymm7 .;
Put x yymmc7 .;
Put x yymmd7 .;
Put x yymmn6 .;
Put x yymmp 7 .;
Put x yymms7 .;
Put x yymon7 .;
Put x mmddyy10 .;
Put x yymmdd10 .;
Run;
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Path to mathematics-sas memo (17), path to mathematics-sas memo 17SAS Date and Time FormatData _ null _;Input mydate YYMMDD10 .;Put mydate YYMMDDB10 .;Put mydate YYMMDDC10 .;Put mydate YYMMDDD10 .;Put mydate YYMMDDN8 .;Put mydate YYMMDDP10 .;Put mydate YYMMDDS10 .;Cards;2014-05-;Run;All content of this blog is original, if reproduced please indicate the source http://blog.csdn.net/myhaspl/2014 05 182014-05-
recently re-spread on the database, the company's core database every day IO full, in the study with SAS 16*RAID10, or RAID10 ssd*6, or FIO;the principle, no raid-5 for database; eh; the root of all evil ;No.2 principle, most of the time, the database does not need too high CPU, now 2 sockets are basically enough, more MySQL is not used;No.3 principle, large memory, high IO, is the necessary condition of modern web-based database;now the big companies
In practical applications, we often convert wide data (one patient observation) into long data (one patient observation) or long data (one patient multiple observations) into wide data (one observation for a patient), and in R we can use the Reshape2 package. There are two implementations of the SAS: arrays and transpose. This blog post first explains the use of arrays to reconstruct SAS data, and the next
Path to mathematics-sas memo (13), path to sas memo 13Libname sastemp 'e:/sastemp /';Option user = sastemp; * specifies the reference name of the next logical database;Page; * The log starts from a new page;Data sales;Input id $ price;Skip 6; * Five blank lines are generated in the log;Cards;1 23.32 99.233 91.01;Proc print;Run;X 'dir. '; * execute the operating system command; all content in this blog is or
Path to mathematics-sas memo (9), path to mathematics-sas memo
View
Libname saslib "k: \ sas ";
DataSaslib. testview4/view = saslib. testview4;
Set saslib. test4;
Run;
Proc printData = saslib. test4 noobs label;
Run;
Proc SQL;
Select testview4.id as student ID, testview4.score as score fromsaslib. testview4;
Quit;All content of this blog is original, if reproduc
Path to mathematics-sas memo (6), path to mathematics-sas memo
Connect external data
Connect to database type options
All content of this blog is original, if reproduced please indicate the source http://blog.csdn.net/myhaspl/
Connection ACCESS:
Proc SQL;
Connect to access as db (path = "e: \ xx. mdb ");
Connect to excel:
Proc SQL;
Connect to EXCEL (PATH = "k: \ student_excel.xlsx" GETNAMES = YES
Sas memo (1), sas memo
Simple dataset output
Logs
85 libname saslib base 'e: \ sasdata ';
NOTE: The logical Library Reference name "SASLIB" has been successfully allocated, as shown below:
Engine: BASE
Physical name: E: \ sasdata
86
87 data saslib. Student;
88 input name $ Age Score;
89 datalines;
NOTE: The SASLIB. STUDENT dataset has three observations and three variables.
NOTE: time used by the "DATA st
that grabbed the beach in China in that year, and finally produced many pre-sale countermeasures, for example, you can use the Bitmap header to calculate the sequence of tables in the database stored procedure, and use the program to call Excel com nested stitching.
(5) Bi advanced application mode overview-Online Analytical Processing, OLAP)
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Programmers often ask which language can access SAS, that is, using SAS's it mechanism, which allows development customers to access SAS, programmers can quickly build strong applications with SAS in different languages, this article mainly introduces how to use VB to interact with SAS
Need
1. Oracle OLAP Component Description
For a description of all Oracle components, refer:
Oracle8i/9i/10g/11g component (components) Description
Http://blog.csdn.net/tianlesoftware/article/details/5937382
OLAP (on-line analytical processing), also known as DSS decision support system. OLAP is the main application of the data warehouse system. It supports complex
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