GeneXus course
Version: Evolution 3
Procedimientos y listados
Actualización de la Base de Datos
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Nested For Each command to list grouped data
Applies to: Evolution 3.
For every record in a table, many times we want to list their related records in another one, but only for those records that have related records. In summary, we will try to list data in a table, grouped by a certain criteria; this is known as control break.
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First, we recommend watching the video "
Simple For Each command and nested For Each command to list related info
"
In this video: order clause for grouping, defined by clause for modifying the base table.
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Simple For Each command and nested For Each command to list related info
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Nested For Each command to list grouped data
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Previous versions of this course:
Evolution 2
Evolution 1