大约有 45,000 项符合查询结果（耗时：0.0722秒） [XML]
How do you use variables in a simple PostgreSQL script?
...ple does not work. ERROR: query has no destination for result data HINT: If you want to discard the results of a SELECT, use PERFORM instead. CONTEXT: PL/pgSQL function inline_code_block line 7 at SQL statement
– Jasen
Dec 31 '16 at 1:34
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Declaring a custom android UI element using XML
...or refuses to use the values for all android: attributes. I would like to know if it is a feature or bug
– deej
Mar 28 '13 at 0:17
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Import CSV to mysql table
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Do you know if there is a way to set file path to csv file?
– JasonDavis
Dec 23 '15 at 4:03
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How to return 2 values from a Java method?
...te - presumably the pair of numbers has some meaning, and it would be nice if the return type represented this.
– Armand
May 14 '10 at 11:50
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Amazon Interview Question: Design an OO parking lot [closed]
...ull, empty and also be able to find spot for Valet parking. The lot has 3 different types of parking: regular, handicapped and compact.
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Secure random token in Node.js
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If you're looking for the above as a bash one-liner, you can do node -e "require('crypto').randomBytes(48, function(ex, buf) { console.log(buf.toString('hex')) });"
– Dmitry Minkovsky
Fe...
How to generate a create table script for an existing table in phpmyadmin?
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Is there a way to specify which database, for example if you have multiple databases that contain the same tablename? Or is that not possible?
– Davos
Feb 20 '18 at 6:03
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sed or awk: delete n lines following a pattern
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What's happening is similar but slightly different in each case. In the first recipe, /pattern/,+5 defines a range, which starts with a line containing "pattern" (/pattern/) and ends 5 lines later (+5). The last character d is a command to run on each line in that ...
A monad is just a monoid in the category of endofunctors, what's the problem?
...nsformation, μ : T × T → T, where × means functor composition (μ is known as join in Haskell)
A natural transformation, η : I → T, where I is the identity endofunctor on X (η is known as return in Haskell)
...satisfying these laws:
μ ∘ Tμ = μ ∘ μT
μ ∘ Tη = μ ∘ ηT = 1 (the...
How to use mongoimport to import csv
...or Mac 2011 version using the default "Save as.." "xls as csv" without specifying "Windows Comma Separated(.csv)" format specifically. After researching this site and trying the "Save As again using "Windows Comma Separated (.csv)" format, mongoimport worked fine. I think mongoimport expects a new...