Talk:IBM Business System 12
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[edit]From Hugh Darwen:
I'm delighted to see an entry for BS12. I just want to comment on the third paragraph of that entry. The text from the first comma to the end of the paragraph is inaccurate and should be struck out.
Regarding ISBL, BS12's choice of operators was heavily based on that prototype but its syntax was very different. For example, the natural join of T1, T2 and T3 is written as "T1*T2*T3" in ISBL, as "JOIN(T1,T2,T3)" in BS12. BS12 used prefix notation and key words exclusively, whereas ISBL used special characters and infix notation.
Rows?
[edit]Sayeth the article:
- New tables can be created by inserting a row into TABLES, and then rows added to it by inserting into COLUMNS.
Uh, what? Don't you mean that columns can be added to it by inserting into COLUMNS
? I haven't used BS12, so I'm not sure. I've made the change in the article, but please revert it if I'm mistaken. Neilc 22:52, 12 Aug 2004 (UTC)
SQL Example
[edit]Shouldn't there be a "GROUP BY d.Deptnum" in the SQL-Example just before "HAVING"?
O. Jacot-Descombes (talk) 18:37, 21 February 2008 (UTC)
I added it, but have not tested it on an actual RDBMS. It also appears somebody reworked the BS12 example to avoid ambiguity about where Budget comes from. This is probably a good thing, but perhaps needs to be documented better. --Tablizer (talk) 04:12, 18 November 2008 (UTC)
Stop of development?
[edit]The development of BS12 in Uithoorn was still active in Q1 1987. Janaaa3 (talk) 08:08, 6 February 2024 (UTC)
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