Delete a tag
DELETE TAG <cOrderName> [IN <xcOrderBagName>] [, <cOrderName> [IN xcOrderBagName] list>]
<cOrderName> is a character string that represents the order name.
<xcOrderBagName> is the name of a disk file containing one or more orders. You may specify <xcOrderBagName> as the file name with or without the path name or appropriate extension. If you do not include the extension as part of <xcOrderBagName>, Clipper uses the default extension of the current RDD.
<cOrderName …list> is an optional list of order and order bag name pairs, separated by commas. Any reference to <cOrderName> that results in either a null string (“”) or spaces is ignored. You can specify each order as a literal expression or as a character expression enclosed in parentheses. If you specify no extension for the order bag name, the current database driver supplies a default extension.
This command removes an order from an order bag in the current or specified work area. If you do not specify an <xcOrderBagName>, all orders bags are searched in the current or specified work area. The first occurrence of <cOrderName> is deleted. A runtime recoverable error is raised if the order is not found.
If <cOrderName> is the active order, the database in the current or specified work area reverts to its identity order (natural or entry) and SET FILTER scoping.
A runtime error is raised if <xcOrderBagName> does not exist or if it exists but does not contain <cOrderName>.
The active RDD determines the order capacity of an order bag. The default DBFNTX and the DBFNDX drivers only support single-order bags, while other RDDs may support multiple-order bags (e.g., the DBFCDX and DBFMDX drivers).
USE Customer VIA "DBFCDX" NEW SET INDEX TO Customer // Delete the Orders (Tags) Cust01 and Cust02 that // exist in the index file Customer DELETE TAG Cust01 IN Customer DELETE TAG Cust02 IN Customer // or // DELETE TAG Cust01 IN Customer, Cust02 IN Customer