QlikView Reference Manual.pdf - QlikCommunity - QlikView

Tip! A very useful tool is the System table, a pivot table with the two dimensions $Field and $Table and
the expression only($Field). Let the program automatically create this table through the command: Layout:
New Sheet Object, System Table.
26.4 Logical Tables
Each load or select statement generates a table. Normally, QlikView treats the result of each one of these as
one logical table. However, there are a couple of exceptions from this rule:
l If two or more statements result in tables with identical field names, the tables are concatenated and
treated as one logical table.
l If a load or select statement is preceded by any of the following qualifiers, data is altered or treated
differently:
concatenate
this table is added (concatenated) to the last previously created logical table.
crosstable
this table is converted from crosstable format to column format.
generic
this table is split into several other logical tables.
info
this table is loaded not as a logical table, but as an information table containing links to external info such
as files, sounds, URLs, etc.
intervalmatch
the table (which must contain exactly two columns) is interpreted as numeric intervals, which are associated
with discrete numbers in a specified field.
join
this table is joined by QlikView with the previously created logical table, over the fields in common.
mapping
this table (which must contain exactly two columns) is read as a mapping table, which is never associated
with other tables.
semantic
this table is loaded not as a logical table, but as a semantic table containing relationships that should not be
joined, e.g. predecessor, successor and other references to other objects of the same type.
When the data has been loaded, the logical tables are associated. The logical tables and the associations can
be seen in the Table Viewer dialog, see Table Viewer (page 181).
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