Table of Contents
How can I improve my qlik sense performance?
Best Practice and Performance Optimization in Qlik Sense
- Migrating from QlikView?
- Reduce Clutter and improve performance.
- Consolidate repeated or similar objects.
- Load time calculations.
- Review calculations and the data model.
- Using Vizlib Extensions with other Extensions.
What is set analysis in QlikView?
Set analysis offers a way of defining a set (or group) of data values that is different from the normal set defined by the current selections. Normally, when you make a selection, aggregation functions, such as Sum, Max, Min, Avg, and Count aggregate over the selections that you have made: the current selections.
What is fuzzy search in QlikView?
Fuzzy search is similar to standard search, with the exception that it compares and sorts all field values according to their degree of resemblance to the search string. Fuzzy search is especially useful in situations where misspelling is an issue.
How do I optimize my QlikView dashboard?
“The usual” techniques include:
- Reducing data volume.
- Pre-calculating most frequently used expressions.
- Pre-aggregating fact tables.
- Merge tables.
- Avoid string comparison.
- Avoid big listboxes or tables boxes.
- Avoid showing too many objects at the same time.
What is the difference between optimized and non optimized QVD?
Optimized load is much faster and therefore preferable, especially for larger data sets. Optimized QVD loads are up to 100 times quicker than non-optimized ones. For Qlikview version 10 and earlier, the only time you want the load not to be optimized, is if you load a Mapping table from a QVD file.
How does Qliksense reduce loading time?
1) Limit the amount of loaded data
- Incremental loading: load only new data or updated data.
- Databases can sometimes include a lot of information.It may be wise to filter on the relevant data based on an unique key and thus load less data.
- Only load data that will be used within the application.
What is autonumber in QlikView?
This script function returns a unique integer value for each distinct evaluated value of expression encountered during the script execution. This function can be used e.g. for creating a compact memory representation of a complex key.
What is rank function in QlikView?
Rank() evaluates the rows of the chart in the expression, and for each row, displays the relative position of the value of the dimension evaluated in the expression.
What is match function in QlikView?
The Match() function in QlikView is used to match the value of a string on expression with data value present in a column. It is similar to the in function that we see in SQL language. It is useful to fetch rows containing specific strings and it also has an extension in form of wildmatch() function.
What is previous function in QlikView?
Previous() finds the value of the expr expression using data from the previous input record that has not been discarded because of a where clause. In the first record of an internal table, the function will return NULL.
What is qlik scalability tool?
This package (referred to as Qlik Sense Scalability Tools) contains a complete set of tools for easy creation, execution and analysis of load/performance tests.
How do I optimize my qlikview dashboard?
How do you optimize QlikView application?
QlikView Application Performance Tuning
- Reducing data volume.
- Pre-calculating most frequently used expressions.
- Pre-aggregating fact tables.
- Merge tables.
- Avoid string comparison.
- Avoid big listboxes or tables boxes.
- Avoid showing too many objects at the same time.
What is the maximum QVD size?
There is no limit to the QVD size. It is limited to the RAM of your server. The best practice to follow is “maintain 10x times RAM in your server” eg: if qvd size is 1gb, then RAM should be 10gb. Thank you so much for your replay.
What is ApplyMap in qlikview?
The ApplyMap script function is used for mapping the output of an expression to a previously loaded mapping table.
What is AutoNumber in Qliksense?
The autonumber() function assigns an integer value to every unique record encountered during script execution. This is done to store large data records into compact composite keys where integer values are assigned to distinct record values as per the expression specified in autonumber function.
What are synthetic keys in QlikView?
When two or more internal tables have two or more fields in common, this implies a composite key relationship. QlikView handles this by creating synthetic keys automatically. These keys are anonymous fields that represent all occurring combinations of the composite key.
How can we avoid circular loops?
1 ) build your data model by object and merge table by object. For example, if you have a shoes table and a tshirt table merge that in clothes table. 2) create specific keys between 2 tables. There are multiple ways to remove circular reference in Qlikview data model.