4D v16.3

Get external data path

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4D v16.3
Get external data path

Get external data path 


 

Get external data path ( aField ) -> Function result 
Parameter Type   Description
aField  Text, BLOB, Picture in Field whose storage location you want to get
Function result  Text in Full pathname of external storage file

The Get external data path command returns the full pathname of the external storage file for the data of the field passed in the aField parameter, for the current record. You must pass fields of the Text, BLOB or Picture type in the parameter. The command returns the pathname of the storage file even if the file does not exist or is not accessible.

More particularly, this command lets you recopy the external file.

Note: For more information about external storage, refer to the Design Reference manual.

This command returns an empty string in the following cases:

  • The field is not stored outside of the data file.
  • The field has a Null value (and does not contain a pathname).
  • The command is executed from a remote 4D.



See also 

SET EXTERNAL DATA PATH

 
PROPERTIES 

Product: 4D
Theme: Structure Access
Number: 1133

This command can be run in preemptive processesDifferent in remote mode

 
HISTORY 

Created: 4D v13

 
ARTICLE USAGE

4D Language Reference ( 4D v16)
4D Language Reference ( 4D v16.1)
4D Language Reference ( 4D v16.2)
4D Language Reference ( 4D v16.3)