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Stored procedures
..PersistedCalculatedItem is used to:
  • Find out whether the value of a calculated item is stored in the data file. This item was defined in the data model editor or by programming.
  • Define whether the value of a calculated item is stored in the data file (when describing the item by programming).
Note: The calculated items correspond to the "Expression" items in the data model editor.
Example
AFile is File Description
AnItem is Item Description
AnItem..Name = "CmdDate"
AnItem..CalculatedItemExpression = "'Written by ' + CURRENT_USER + ' on ' + SYSDATE"
AnItem..PersistedCalculatedItem = True
HDescribeItem(AFile, AnItem)
Syntax

Finding out whether the value of a calculated item is stored in the file Hide the details

<Result> = <File Name>.<Item Name>..PersistedCalculatedItem
<Result>: Boolean
  • True if the value of the calculated item is stored in the data file.
  • False if the value of the item is recalculated at each reading.
<File Name>: Character string (with or without quotes)
Name of data file used.
<Item Name>: Character string (with or without quotes)
Name of item used.
WEBDEV - Server codeAjax

Indicating whether the value of a calculated item must be stored in the file Hide the details

<Item Name>..PersistedCalculatedItem = <Value>
<Item Name>: Character string (with or without quotes)
Name of item used. This name was defined by the Item Description type.
<Value>: Boolean
  • True if the value of the calculated item must be stored in the data file.
  • False if the value of the item must be recalculated at each read operation.
Minimum version required
  • Version 21
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