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If table exists drop table then create it, if it does not exist just create it
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Just put DROP TABLE IF EXISTS `tablenam>me m>`; before your CREATE TABLE statem>me m>nt.
That statem>me m>nt drops the table if it exists but will not throw an error if it does not.
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How do I delete a fixed number of rows with sorting in PostgreSQL?
I'm trying to port som>me m> old MySQL queries to PostgreSQL, but I'm having trouble with this one:
6 Answers
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LINQ OrderBy versus ThenBy
...ices.InvoiceCollection
.OrderBy(o => o.InvoiceOwner.LastNam>me m>)
.ThenBy(o => o.InvoiceOwner.FirstNam>me m>)
.ThenBy(o => o.InvoiceID);
Note how you can use the sam>me m> nam>me m> each tim>me m>. This is also equivalent to:
tmp = from o in invoices.InvoiceCollection
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difference between scope and nam>me m>space of ruby-on-rails 3 routing
I can't understand what the difference is between a nam>me m>space and a scope in the routing of ruby-on-rails 3.
5 Answers
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super() fails with error: TypeError “argum>me m>nt 1 must be type, not classobj” when parent does not inh
I get som>me m> error that I can't figure out. Any clue what is wrong with my sample code?
4 Answers
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Breadth First Vs Depth First
...rk all the way across each level before going down.
(Note that there is som>me m> ambiguity in the traversal orders, and I've cheated to maintain the "reading" order at each level of the tree. In either case I could get to B before or after C, and likewise I could get to E before or after F. This may or...
Chrom>me m> Extension m>Me m>ssage passing: response not sent
I am trying to pass m>me m>ssages between content script and the extension
3 Answers
3
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How do I move a single folder from one Subversion repository to another repository?
I have a "docs" folder in a Subversion repository nam>me m>d "project". I've com>me m> to the conclusion that it should really be kept under a separate Subversion repository nam>me m>d "project_docs".
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Best way of invoking getter by reflection
...ll be always private though I know in advance it will always have a getter m>me m>thod. I know that I can use setAccesible(true) and get its value (when there is no PermissionManager), though I prefer to invoke its getter m>me m>thod.
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django urls without a trailing slash do not redirect
...Lconf and it doesn’t end in a slash, an HTTP redirect is issued to the sam>me m> URL with a slash appended. Note that the redirect may cause any data submitted in a POST request to be lost.". "The APPEND_SLASH setting is only used if CommonMiddleware is installed...". I prefer Michael Gendin's answer...