This is the legacy 4D documentation web site. Documentations are progressively being moved to developer.4d.com
- 4D Language Reference
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- Structure Access
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Structure Access Commands
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CREATE INDEX
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DELETE INDEX
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EXPORT STRUCTURE
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Field
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Field name
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Get external data path
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GET FIELD ENTRY PROPERTIES
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GET FIELD PROPERTIES
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Get last field number
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Get last table number
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GET MISSING TABLE NAMES
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GET RELATION PROPERTIES
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GET TABLE PROPERTIES
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IMPORT STRUCTURE
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Is field number valid
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Is table number valid
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PAUSE INDEXES
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REGENERATE MISSING TABLE
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RELOAD EXTERNAL DATA
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RESUME INDEXES
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SET EXTERNAL DATA PATH
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SET INDEX
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Table
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Table name
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RELOAD EXTERNAL DATA
| RELOAD EXTERNAL DATA ( aField ) | ||||||||
| Parameter | Type | Description | ||||||
| aField | Text, BLOB, Picture, Object |
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Field for which to set the storage location | |||||
The RELOAD EXTERNAL DATA command reloads the contents in memory of an external storage file associated with a BLOB, Picture, or Text type field.
This command is useful when the field of a record already loaded in memory is modified on the disk by another application (external storage files for fields are always writable). For example, a picture used in a Picture field can be modified by a graphic editor then saved on disk.
You then need to reload the data using the RELOAD EXTERNAL DATA command to update the contents of the field if it displayed in a form.
Note: The RELOAD EXTERNAL DATA command only works on a local 4D or on 4D Server. You cannot reload a field individually with 4D in remote mode. In this context, you have to reload all the records (using the LOAD RECORD command for example).
Product: 4D
Theme: Structure Access
Number:
1135
Created: 4D v13
4D Language Reference ( 4D v20 R7)
