\/*
Writing ugly SQL Statements is an art. Today I’ve spent
a few minutes trying to break our parser as well as giving
a grill to SQL Server’s parser.
So here is some extra syntax that is not behaving as
I’d expect it to behave.
*\/<\/p>\n
select 1.a<\/p>\n
— Yes, this is legal, surprise surprise it returns a
— table with a single column, a single row, the value
— is 1, the column name is “a” !<\/p>\n
— So let’s push it a bit further:<\/p>\n
select -1.a<\/p>\n
\/*
Works, the result is:
a
—————————————
-1
*\/<\/p>\n
select -1\/2.[-1\/2]<\/p>\n
\/*
Wow, this works too, and it gives me
-1\/2
—————————————
-0.500000<\/p>\n
So can I just put anything after the ?decimal? point?
*\/<\/p>\n
select 1.SomeString<\/p>\n
\/*
SomeString
—————————————
1
*\/<\/p>\n
— But then there are exceptions:
select 1.a, 1.e, 0.a<\/p>\n
\/*
a a
———– ———————- —————-
1 1 0.0
sa<\/p>\n
1.e does not produce the alias (e for exponent???),
0.a seems to use float, so the value displayed is 0.0<\/p>\n
It is a shame that you cannot use this with string literals.
Unless you want to torture your colleagues I reckon that
the above is absolutely useless. But if you have an idea why
the above works, and works the way it works, do let me know.<\/p>\n
PS: the above syntax works on 2000,2005 and 2008.<\/p>\n
Andras
*\/<\/p>\n","protected":false},"excerpt":{"rendered":"
\/*Writing ugly SQL Statements is an art. Today I’ve spenta few minutes trying to break our parser as well as giving a grill to SQL Server’s parser.So here is some extra syntax that is not behaving as I’d expect it to behave. *\/ select 1.a — Yes, this is legal, surprise surprise it returns a……<\/p>\n","protected":false},"author":9298,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[],"coauthors":[],"class_list":["post-2575","post","type-post","status-publish","format-standard","hentry","category-blogs"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/posts\/2575","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/users\/9298"}],"replies":[{"embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/comments?post=2575"}],"version-history":[{"count":2,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/posts\/2575\/revisions"}],"predecessor-version":[{"id":41584,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/posts\/2575\/revisions\/41584"}],"wp:attachment":[{"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/media?parent=2575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/categories?post=2575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/tags?post=2575"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.red-gate.com\/simple-talk\/wp-json\/wp\/v2\/coauthors?post=2575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}