Content deleted Content added
m Disambiguate Multitasking to Computer multitasking using popups |
m remove Erik9bot category,outdated, tag and general fixes |
||
Line 1:
{{Unreferenced|date=December 2009}}
'''Data Access Language''', or simply '''DAL''', was a [[SQL]]-like language parser released by [[Apple Computer]] in 1990 to provide unified [[client/server]] access to [[database management system]]s. It was known for poor performance and high costs, something Apple did little to address over its short lifetime at Apple. DAL was later sold off in the early 1990s. DAL is used as the native SQL dialect of the [[PrimeBase]] SQL server, as well as the now-defunct [[Butler SQL]].
==History==
DAL started as a 3rd party product, '''CL/1''' (''Connectivity Language One''), from a small vendor, Network Innovations. Apple purchased the company in 1988, about the time that client/server databases were becoming a hot issue in the industry. They released their first version of the re-branded software in 1989, for [[MVS]], and followed with other versions over the next year or so.
Line 10:
==Description==
Like Oracle's [[PL/SQL]] or Microsoft's [[Transact-SQL]], DAL is essentially an extended version of SQL supporting basic query functionality and adding clean syntax for cursor operations, logic, and loops.
Line 24 ⟶ 23:
[[Category:Mac OS development]]
|