April 12, 2016 at 8:22 am
Jeff: Thanks for the link(s). Still can't get my head around that "From TableA, TableB" syntax :sick:, so I'm afraid the other articles you linked to are near-impossible to follow (ditto for the string-splitting one, and for the same reason); though I do appreciate you pointing me to them.
I guess my brain is just 100% allergic to putting a comma between two table names in a FROM clause. >sigh<
BTW "surely" you can only refer to a cross join as a "square join" if the row count of both tables is the same?
April 12, 2016 at 8:30 am
cad.delworth (4/12/2016)
I guess my brain is just 100% allergic to putting a comma between two table names in a FROM clause. >sigh<
Then take any such occurrence and replace the , with ' CROSS JOIN', because that's all it is.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability
April 12, 2016 at 8:53 am
Thanks for your suggestion, but without printing out the articles and writing the replacement text on them — or some similar method — my brain can't do that.
In the same way, if someone reads out a number (especially phone numbers) using the words "double" or "treble" along the way, I literally can't understand it: I have to ask the person to read it out a second time, reading each digit out, even if it's the same as either of its neighbours.
I suppose it would be a dull world if we were all the same (although data would be MUCH more ordered and manageable, I guess?!).
April 12, 2016 at 9:16 pm
cad.delworth (4/12/2016)
Jeff: Thanks for the link(s). Still can't get my head around that "From TableA, TableB" syntax :sick:, so I'm afraid the other articles you linked to are near-impossible to follow (ditto for the string-splitting one, and for the same reason); though I do appreciate you pointing me to them.I guess my brain is just 100% allergic to putting a comma between two table names in a FROM clause. >sigh<
BTW "surely" you can only refer to a cross join as a "square join" if the row count of both tables is the same?
I agree that two tables of difference sizes would result in a "rectangle" but I've never heard of anyone citing a "rectangular" join.
--Jeff Moden
Change is inevitable... Change for the better is not.
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