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THE META-HTML LANGUAGE REFERENCE MANUAL
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Name: DATABASE-NEXT-KEY
Section:
Database Commands
Synopsis:
<database-next-key DBVAR AFTER-KEY>
Description:
Return the "next" key in the database. The key is found by looking at AFTER-KEY, which makes this function suitable for calling in a loop. For example, the following code iterates over an entire database.
<with-open-database db /file.db mode=read>
<set-var key=<database-first-key db>>
<while <get-var key>>
<package-delete record>
<set-var loaded? =
<database-load-record db <get-var key> package=record>>
Key: <get-var key>, Name: <get-var record::name>
<set-var key = <database-next-key db <get-var key>>>
</while>
</with-open-database>
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The
META-HTML
Reference Manual V1.4
Copyright © 1995, 1996,
Brian J. Fox,
1996, 1997 Universal Access Inc.
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