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QlikView Reference Manual.pdf

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22.1 Expression Syntax .............................................................................365<br />

22.2 Operators ...........................................................................................366<br />

22.3 Aggregation Functions ......................................................................369<br />

22.4 Other Functions .................................................................................393<br />

23 DATA STRUCTURES ....................................................................469<br />

23.1 Data Loading Statements ...................................................................469<br />

23.2 Execution of the Script ......................................................................469<br />

23.3 System Fields ....................................................................................469<br />

23.4 Logical Tables ...................................................................................470<br />

23.5 Associations between Logical Tables ...............................................471<br />

23.6 Renaming Fields ................................................................................474<br />

23.7 Concatenating Several Tables into One ............................................475<br />

23.8 Join and Keep ....................................................................................477<br />

24 EVALUATING THE LOADED DATA .................................................483<br />

24.1 Generic Databases .............................................................................483<br />

24.2 Cross Tables ......................................................................................484<br />

24.3 Matching Intervals to Discrete Data ..................................................485<br />

24.4 Using the Extended IntervalMatch Syntax to Resolve Slowly Changing<br />

Dimension Problems. ................................................................................487<br />

24.5 Hierarchies .........................................................................................489<br />

24.6 Semantic Links ..................................................................................491<br />

24.7 Linking Information to Field Values .................................................495<br />

24.8 Data Cleansing ..................................................................................496<br />

24.9 Wild Cards in the Data ......................................................................499<br />

24.10 NULL Value Handling in <strong>QlikView</strong> ...............................................500<br />

24.11 Character Sets ..................................................................................503<br />

25 QVD FILES ..................................................................................505<br />

25.1 About QVD Files ...............................................................................505<br />

25.2 The QVD file Format ........................................................................505<br />

25.3 What are QVD files good for? ..........................................................505<br />

25.4 How Fast Is It? ..................................................................................506<br />

25.5 Creation of QVD Files ......................................................................506<br />

25.6 Reading data from QVD files ............................................................508<br />

25.7 Using QVD files for incremental load ..............................................509<br />

26 SECURITY ...................................................................................513<br />

26.1 Authentication and Authorization .....................................................513<br />

26.2 Security using the <strong>QlikView</strong> Publisher .............................................513<br />

26.3 Security using the Section Access in the <strong>QlikView</strong> script ................514<br />

26.4 Sections in the Script .........................................................................514<br />

26.5 Access Levels in Section Access .......................................................514<br />

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