QUERY# returns a Telitab subset on the basis of a set of search criteria

Syntax

QUERY#(Telitab$, UnfoldPar$, Arg_1$[:ParLab_1$], .., Arg_n$[:ParLab_n$])

Arguments 

• Telitab$ is a string expression containing/returning a Telitab set.
• Unfold/SortPar$ is a name of parameter for which to unfold and subsequently sort a dataset. For expalation on unfold see also the UNFOLD#();

•  are the query arguments. These can be string parameters or string values.

Remarks

1. Please note that the Unfold parameter may be "NullString" when unfolding is not necessary;
2. The query arguments are not required. When you use an unfold parameter and no query arguments the function is almost equal to the UNFOLD#() function. Only the modes of theUNFOLD#() function are missing;

Examples

Unfolding data

To unfold a Telitab set for a particular parameter implies that the record(s) containing this parameter are moved to the top of the hierarchy.

So if Telitab_1$ contains the dataset:

To explain the data: 
you have two objects, MODELS and PROJECTS presented as list values in Telitab_1$ containing TeLiTabs themselfs (with several parameters). 
LPP is part of the MODELS object (TeLiTab).

When you unfold Telitab_1$ dataset on parameter "LPP", you get:

You see that PROJECT still is a separate object (and presented as a list value in Telitab_1$). All other data (which was part of the MODELS object) now is part of Telitab_1$ and thus a table in the TeLiTab.

To unfold a Telitab set for a particular parameter implies that the record(s) containing this parameter are moved to the top of the hierarchy. If UnfoldPar$ = "NullString", no unfolding is performed. 

Query data

The list contains a set of values or criteria for which a set of records has to be selected from the source data Telitab$.

Again we use Telitab_1$ with the query:

for ARG1$ = "<140" and ARG2$ = ">7.5" returns the following result:

You see that the result in both unfolded on  and queried on   and .

Example knowledgebases 

Please visit the forum topic: Select an item from a dataset for an example of Functions overview | Attribute overview | Constants overview | Dimensions overview

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