4D v13.4

APPLY TO SUBSELECTION

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4D v13.4
APPLY TO SUBSELECTION

APPLY TO SUBSELECTION 


 

APPLY TO SUBSELECTION ( subtable ; statement ) 
Parameter Type   Description
subtable  Subtable in Subtable to which to apply the formula
statement  Statement in One line of code or a method

Subtables are no longer supported starting with version 11 of 4D. A compatibility mechanism ensures the functioning of this command in converted databases; however, it is strongly recommended to replace any subtables with standard related tables.

APPLY TO SUBSELECTION applies statement to each subrecord in the current subselection of subtable. The statement may be a statement or a method. If the statement modifies a subrecord, the modified subrecord is written to disk only when the parent record is written. If the subselection is empty, APPLY TO SUBSELECTION has no effect.

APPLY TO SUBSELECTION can be used to gather information from the subselection or to modify the subselection.

 
PROPERTIES 

Product: 4D
Theme: Subrecords
Number: 73

This command is deprecated and should not be used anymore

 
INDEX

Alphabetical list of commands

 
HISTORY 

Modified: 4D v11 SQL

 
SEE ALSO 

ALL SUBRECORDS
EDIT FORMULA
QUERY SUBRECORDS
SAVE RECORD