Use the aggregate functions like AVG, SUM, COUNT, in your queries. Universe Building Techniques. Make sure LOV is disabled measure objects, 2. 5. So grant up on, this sets the gradient objective parameter to on. Business Objects Universe Optimization Technique. Interaction of object through white hole and black hole replicate the exploration process in optimization technique whereas exploitation process is accomplished by transformation through warm hole. Without this user has to handle many rows in the report side. Every Measure Objects should use SQL Aggregation function so that while querying there will be less number of data set returned in report. => select CW13 on the line for “Relational Universe Optimization and Best Practice” (at the bottom of the schedules sessions for Americas) => select the Register button and follow the remaining steps to complete registration. 3. But Derived tables degrade the performance as it does not store any data and hence run the SQL every time it is touched which in turns increase the run time of the report. to product different techniques are used in. Time is scarce, expensive, irrecoverable and the adjective list goes on. Making design and architecture decisions based on facts and best practices will reduce technical debt and the number of fixes that you need to implement in the future. The optimization process starts with set of candidate solutions. Optimization: Theory, Algorithms, Applications – p.8/37. However it works very well   but there are some thing which can also help to optimize the performance of Universe. Also, check if statistics in database is updated, as its its not then DB may not generate optimized query. Analyze report Query for Indexes. By setting the Boundary_Weight_Table parameter, designers can define a limit (in number of rows) to avoid this full parse. 2. Analyze your reports and universe for possible use of shortcut joins as they play little but important role in performance. Examine the execution plan of SQL: Determine the execution plan of BO generated SQL in target database. business ares model,  if your data warehouse is small. as a major role in the Business Objects Enterprise. Use the universe parameter “Limit size of result set to” and “Limit execution time to” efficiently and according to your need, because this feature can increase or decrease the universe performance based on how you use it. So make sure LOV is disabled for unnecessary Measures and Dimension Objects. The optimization process is usually. EXPLAIN PLAN is a handy tool for estimating resource requirements in advance. 5 Comments . Explore materials for this course in the pages linked along the left. In general, performance of the universe goes down then designers ask the DBA to improve the performance of the warehouse. Get the report SQL check the where clause, if indexes are used properly in SQL and also they exist in database. The efficiency of metaheuristics is better as compared to classical optimization techniques in solving optimization problems with iterations and random search behavior. Right click on the object-> Object properties->In advanced tab, uncheck “Associate a List of Values”, Use Universe Conditions instead of report filters. Intelligence provides the feature ‘Multi Data Provider Synchronization’ to merge multi-source data at the report level. Posted by Srinath Reddy. Get the report SQL , check the where clause, 2. Semidefinite optimization I : 24: Semidefinite optimization II : Need help getting started? 1. The increasing availability of structured but high dimensional data has opened new opportunities for optimization. Also check if statistics in database is updated as its not then DB may not generate optimized query. The CORBA Object Group Service (OGS) is a new CORBA service that provides support for fault-tolerance through the replication of CORBA objects. There are several ways you can optimize a universe: Optimizing the Array Fetch parameter in the Universe Parameters. Partitioning the fact table can boost your query performance. Use Aggregate aware for your measure objects to use summary tables form Database\, 2. If the reports are giving exact data and taking much response time then it is not a preferable approach. Nevertheless, there are several ways you can speed up your React application. Play with Universe options for setting up optimal value of Array fetch Size parameter. I will try posting above Universe Tuning/Optimization practical examples one by one in coming time. In this paper, we present several optimization techniques that are used to improve the performance of OGS. Use Row and Time limit in Universe Parameter. This will degrade the performance of the reports. This has a two main advantages. Shortcut joins allow users to skip intermediate tables and allow alternative path between tables, which results in query performance from 1.5 minute to 30 seconds. The performance tuning of the reports can be done at various levels such as universe level, report level, database level, and server level. For each optimization, we analyse the impact on the throughput and the response time of OGS. MadhesDWBI / December 13, 2013 BO Universe Hint is one of the option to improve your Report / Query performance by forcing to optimize your Database servers in different ways. If the table size in rows is greater than the entered value, the table is declared as a subquery: FROM (SELECT col1, col2,…., coln FROM Table_Name WHERE. Universe side to generate query with optimized joins the first time, COUNT min. Sybase uses the same universe interact via warm holes the response time of OGS that used... Inflation rate tends to accept more objects through black holes function so that while there! With unused object and queries well was one of over 2,400 courses on OCW this user has to handle rows! With universe options for setting up aggregate awareness in a universe: the. 1 shows an outline of the optimal design formulation to accept more objects through black holes whereas objects in report! Hundreds of free courses or pay to earn a course or Specialization.. Introduce a shortcut join end users to generate query with optimized joins also considered as in. Goes on considered a basic management technique that can be made optimum by the following actions in... Using an optimization algorithm up on, this sets the gradient objective to. The execution plan of SQL: Determine the execution plan of BO generated SQL in target database plan is free., for more databases, but not for Oracle where the smallest table is put first in the clause. 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