The delete statement removes a specific item from a file.
Syntax
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delete {file.var}, ID.exp {on.error.clause} |
Parameter(s)
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file.var |
File from which the specified item will be deleted. |
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ID.exp |
Item to delete. |
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on.error.clause |
Consists of text on error followed by a statement list. |
Description
The on.error.clause, which consists of the text on error followed by a statement list, is taken if the update fails due to a lost network connection or a callx that executes an inputerr statement.
Example(s)
This program deletes a specific item from the customer.file. yes is the only valid answer to perform the delete.
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open ’customer’ to customer.file else stop 201,’customer’ input customer-ID crt ’are you sure? ’: input ans if ans = ’yes’ then delete customer.file,customer-ID |
See Also