Qlikview what is resident table




















Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. Given multiple in-resident tables, I'd like to create a new field based on fields in different tables. I'd like to create a new field that is either added to table1 or perhaps in a new table linked by id1 , resulting in:. Obviously I want to extend this to include table3 , but if I can't do it with 2 tables then 3 just won't work.

The real data includes seven tables for this new field lots of foreign keys. The data is being loaded from QVDs the data is shared across multiple QVWs , closely mimicking a SQL database; none of the tables are row-wise redundant, so combining db tables into a single QVD table may be inefficient.

Plus refreshing the data is incredibly easier one table at a time. A colleague suggested I load-join each of the QVDs into one huge table, but that doesn't seem right nor have I successfully chain-joined even a few tables. TheBudac's was part of the way there, but it only merged two of the three. Most of the problems were stemming from incorrect multi-table joins.

My confusion was in the "join" syntax in Qlik; the docs make sense to me now that I see what's happening, but it wasn't as obvious to me initially. Because I'm using left join , I start with the largest table; other joins would dictate different starting condition requirements.

Now you can see data will be uploaded from data Excel files. Step Open edit script Now the next step is open edit script again and perform code for Resident Load and then reload it.

Step Sheet property window The sheet property window will be opened. Step Select table. Step New table box In this window we select fields and click on the OK button. Now you can see Resident Load loads data from an existing field and perform the calculation. It will show the percentage of population with rank.

If you select any data from the table then it shows the country name, percentage of population and date and so on. By introducing the calculation in a first pass, we can reuse it in the Age function in a preceding LOAD :.

Create Managing data Loading data with the data load script Understanding script syntax and data structures Logical tables Loading data from a previously loaded table. Loading data from a previously loaded table There are two ways to load and transform data from a table that already has been loaded. Resident or preceding LOAD? Whether you are new to Qlik or an old hand I hope you found something useful in reading this far.

Excellent Rob, I really appreciate for sharing such nice script and comparison!! Really clean and nice exaplanation. It depends. Performance of ApplyMap vs Join in these type of scenarios will depend on your data. Your email address will not be published. Notify me of follow-up comments by email. Notify me of new posts by email. JOIN The Join option will require us to execute multiple joins to assemble the fields onto each Orders row and then finally do the calculation.

Thank you Rob for sharing! The mapping subroutine is very smart.



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