Business Analytics software
Topics
 Prompt page design
2
© 2011 IBM Corporation
Business Analytics software
Topics
 Prompt page design
 Large dataset considerations
3
© 2011 IBM Corporation
Business Analytics software
Topics
 Prompt page design
 Large dataset considerations
 Concurrent query execution (query hint)
4
© 2011 IBM Corporation
Business Analytics software
Topics
 Prompt page design
 Large dataset considerations
 Concurrent query execution (query hint)
 Prompt reconciliation (query hint)
5
© 2011 IBM Corporation
Business Analytics software
Topics
 Prompt page design
 Large dataset considerations
 Concurrent query execution (query hint)
 Prompt reconciliation (query hint)
 Query caching
6
© 2011 IBM Corporation
Business Analytics software
Topics
 Prompt page design
 Large dataset considerations
 Concurrent query execution (query hint)
 Prompt reconciliation (query hint)
 Query caching
 Prompt data caching
7
© 2011 IBM Corporation
Business Analytics software
Topics
 Prompt page design
 Large dataset considerations
 Concurrent query execution (query hint)
 Prompt reconciliation (query hint)
 Query caching
 Prompt data caching
 Run options
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© 2011 IBM Corporation
Business Analytics software
Prompt Page Design
 Authored vs. generated prompt pages
 Single vs. multiple prompt pages
 Conditional blocks
 Conditional rendering vs. no rendering
 Dedicated prompt queries
 Using model settings to control generated queries
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© 2011 IBM Corporation
Business Analytics software
Large Datasets Considerations
 Select & search prompt
 Cascading prompt controls
 Tree prompts
 Limiting use of reprompt
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© 2011 IBM Corporation
Business Analytics software
Concurrent Query Execution
 Available starting in 8.2
 Controlled by query hint AND advanced
server properties
 Issues simultaneous queries to database
 Helps when majority of report execution
time occurs during query execution
 Individually set for batch report service and
report service
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© 2011 IBM Corporation
Business Analytics software
Concurrent Query Execution:
Advanced Server Properties
 RSVP.CONCURRENTQUERY.NUMHELPERSPERPROCESS
– Default is 0
– Setting greater than 0 enables concurrent query execution
– Specifies maximum number of query execution helpers per report/batch report service
– Each helper executes one query at a time
 RSVP.CONCURRENTQUERY.MAXNUMHELPERSPERREPORT
– Default is 1
– Setting greater than 1 is required to benefit from concurrent query execution
– Specifies maximum number of query execution helpers per report
– Prevents a report from consuming all available helpers
 RSVP.CONCURRENTQUERY.ENABLEDFORINTERACTIVEOUTPUT
– Default is ‘False’
– Setting of ‘True’ enables concurrent query execution when producing interactive output
– For interactive reports, some queries may be executed but the results are not used
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© 2011 IBM Corporation
Business Analytics software
Prompt Reconciliation
 Ensures prompt control properties are consistent with associated parameter properties
– Cardinality
• [Query Item] = ?parameter?
Single value
• [Query Item] in ?parameter?
Multiple values
• [Level]->?parameter?
Single value
• Set ([Level]->?parameter?)
Multiple values
• #prompt (“parameter”, …)#
Single value
• #promptmany (“parameter”, …)#
Multiple values
• Other parameter usage in data items
Single value
– Discreteness
• [Query Item] = ?parameter?
Discrete value
• [Query Item] in_range ?parameter?
Range values
• #prompt[many] (“parameter”, …)#
Discrete value(s)
• Other parameter usage in data items
Discrete value
– Optionality
• #prompt[many] (“parameter”, …)#
Mandatory
• #prompt[many] (“parameter”, …, “value”)#
Optional
• Other parameter usage in data items
Mandatory
– Data type
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© 2011 IBM Corporation
Business Analytics software
Prompt Reconciliation:
Query Hint: Use For Parameter Info
 Available starting in 8.2
 Prioritizes queries used to obtain parameter
information
 Controls data typing and capabilities
 Complements automatic query prioritization
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© 2011 IBM Corporation
Business Analytics software
Use For Parameter Info:
Advanced Server Properties
 Complements ‘Use For Parameter Info’ Query Hint
 Prioiritizes and groups queries
– Queries with query hint Use For Parameter Info set to true
– Filtered queries not associated with prompt controls (Group 1)
– Filtered queries associated with prompt controls (Group 2)
– Unfiltered queries not associated with prompt controls (Group 3)
– Unfiltered queries associated with prompt controls (Group 4)
 RSVP.PROMPT.RECONCILIATION
– Complete (Default)
– Grouped, Chunked Grouped, Chunked
 RSVP.PROMPT.RECONCILIATION.CHUNKSIZE
– Sets chunk size for Chunked and Chunked Grouped
– Default is 5
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© 2011 IBM Corporation
Business Analytics software
Use For Parameter Info:
Advanced Server Properties
Query Groups
1
2
3
4
RSVP.PROMPT.
RECONCILIATION
Complete
Grouped
RSVP.PROMPT.
RECONCILIATION.
CHUNKSIZE *
*
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Chunked
Chunked Grouped
© 2011 IBM Corporation
Business Analytics software
Query Caching
 Prevents re-preparation of queries when reprompting
– Select & Search control
– Same page cascading prompts
– Explicit reprompt
 Controlled by “queryReuse” in CQEConfig.xml
 Default of 5 cached queries
 Does not span report executions
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© 2011 IBM Corporation
Business Analytics software
Prompt Data Caching
 Available starting in 8.2 MR1
 Prompt values stored in Content Manager
 Prompts populated based on stored values
 Useful for non-volatile, non-user specific prompt data
 Cache created with jobs
– Cache does not expire
– Refreshed based on job schedule
 Cache created with report properties
– Cache expires based on report property setting
– Refreshed on first report execution or first execution following cache expiry
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© 2011 IBM Corporation
Business Analytics software
Prompt Data Caching:
Cacheable Queries
 Query must be referenced by a prompt page
 Query must be able to execute without parameter values
(no parameterized filters or parameters used in item definitions in the model)
 Queries associated with cascaded prompt controls are not cacheable
(parameterized filter is implicitly applied when a parent value is selected)
 Queries on tree prompt controls use the prePopulateLevels property to determine how much
data is cached
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© 2011 IBM Corporation
Business Analytics software
Run Options: Prompt For Values
Prompt Run Option Checked
 Always see authored prompt pages, if any
 No attempt is made to execute a report page until Finish is pressed on an authored prompt
page
 Better for reports with authored prompt pages
Prompt Run Option Unchecked
 An attempt is made to execute report page first
 If unsatisfied parameters, you may see prompt pages
 For optimal performance, all parameters, including optional parameters, should have values
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© 2011 IBM Corporation
Business Analytics software
Run Options: Advanced Server Properties
 RSVP.PROMPT.ALLREMAININGOPTIONAL
– Applies when there are authored prompt pages
– Controls if a generated prompt page appears if only optional parameters remaining after
finishing the authored prompt page sequence
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© 2011 IBM Corporation