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<Source>.MigrateLinkedCompositeKey (Function) In french: <Source>.MigreCléComposéeReliée
Available only with this kind of connection
Migrates the values of the linked composite keys coming from a file in Hyper File 5.5 format to the HFSQL Classic format. | When should I use this function? The format of composite keys changed between Hyper File 5.5 and HFSQL Classic (single-user or multi-user). Consequence: the value of the linked keys corresponding to a composite key is incorrect once the files have been migrated from Hyper File 5.5 to HFSQL Classic. <Source>.MigrateLinkedCompositeKey changes the value of the linked keys and retrieves the value of the composite key in the linked key. Use conditions: This function must be used: - with files in HFSQL Classic format (files in 5.5 format migrated to the Classic format),
- once for each key to migrate
- just after the migration from Hyper File 5.5 to HFSQL Classic. If records are added between the migration and the call to <Source>.MigrateLinkedCompositeKey, the values of the new records may be corrupted.
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// Modify the values of Orders.CustomerCompKey Customer.MigrateLinkedCompositeKey(CompKey, Orders, CustomerCompKey)
Syntax
<Result> = <Source>.MigrateLinkedCompositeKey(<Source composite key> , <Linked file> , <Linked key> [, <Progress Bar>])
<Result>: Boolean - True if the operation was performed,
- False if a problem occurs. HError returns more details about the problem.
<Source>: Type corresponding to the specified source Name of the source file for the link, containing the description of the composite key. <Source composite key>: Character string Name of the "Composite key" item used in the source file of the link. <Linked file>: Character string Name of the linked file containing the value of the composite key to migrate <Linked key>: Character string Name of the key item in the linked file. The value of this item must be migrated. <Progress Bar>: Optional window or control name Name of Progress Bar control or name of window used to show the migration progress.
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