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Stored procedures
HCancelAlias (Function)
In french: HAnnuleAlias
ODBCNot available with this kind of connection
Cancels an alias previously declared with HAlias. After this operation, the data file is no longer recognized by the HFSQL engine.
Note: If the alias is opened, it is automatically closed during the cancelation.
Note: From version 19, HFSQL is the new name of HyperFileSQL.
Example
// Create 2 aliases on the CUSTOMER file
HAlias(CUSTOMER, CUSTOMER1)
HAlias(CUSTOMER, CUSTOMER2)
// Cancel the first alias
HCancelAlias(CUSTOMER1)
Syntax
<Result> = HCancelAlias(<Alias name>)
<Result>: Boolean
  • True if the operation was performed,
  • False if a problem occurred. HError is used to identify the error.
<Alias name>: Character string (with or without quotes)
Name of the alias file to cancel. A non-fatal WLanguage error occurs if the alias does not exist.
Remarks
When cancelling an alias (HCancelAlias):
  • modifications made with HChangeName and HChangeDir are not cancelled. If the alias is described again, these parameters are stored and re-applied.
  • if a data file has been created with a name given by HChangeName and a location given by HChangeDir, the data file is not physically deleted.
Component : wd240hf.dll
Minimum version required
  • Version 9
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