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Output array to CSV in Ruby
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I pulled in a CSV file using CSV.table, did some manipulations, got rid of some columns, and now I want to spool the resulting Array of Hashes out again as CSV (really tab-delimited). How to? gist.github.com/4647196
– tamouse
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UITableViewCell subview disappears when cell is selected
I'm implementing a color-chooser table view where the user can select amongst, say, 10 colors (depends on the product). The user can also select other options (like hard drive capacity, ...).
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Using an ORM or plain SQL? [closed]
...ased on Java beans get/set methods. This is a TON of boilerplate for every table, for every column and ... here's the real anti-pattern: Just to expose every field as if it were public. In effect, having a get/set method on fields in an object/table/row is very close to violating every tenant of inf...
Can we omit parentheses when creating an object using the “new” operator?
...nt precedence. According to MDN the part of JavaScript operator precedence table we are interested in looks like:
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Convert a String In C++ To Upper Case
...s to iterate over its contents. std::basic_string has both a const and a mutable iterator (returned by cbegin() and begin() respectively, see std::basic_string::begin), so for(:) uses the one appropriate (cbegin() if str is declared const, with auto =:= const char, begin() otherwise, with auto =:= c...
Resize image in the wiki of GitHub using Markdown
...inside the wiki). Additionally, I had to add one or two images inside of a table. The pipe character was giving me grief because of typical table formatting in markdown. Escaping the pipe inside a table cell is still valid: [[ http://url.to/img.png \| height=48px]].
– DanMad
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Store boolean value in SQLite
What is the type for a BOOL value in SQLite? I want to store in my table TRUE/FALSE values.
8 Answers
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SQL SELECT WHERE field contains words
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Rather slow, but working method to include any of words:
SELECT * FROM mytable
WHERE column1 LIKE '%word1%'
OR column1 LIKE '%word2%'
OR column1 LIKE '%word3%'
If you need all words to be present, use this:
SELECT * FROM mytable
WHERE column1 LIKE '%word1%'
AND column1 LIKE '%word2%'
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How can I select an element by name with jQuery?
Have a table column I'm trying to expand and hide:
14 Answers
14
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postgresql return 0 if returned value is null
...al question).
There are two distinct "problems" here, the first is if a table or subquery has no rows, the second is if there are NULL values in the query.
For all versions I've tested, postgres and mysql will ignore all NULL values when averaging, and it will return NULL if there is nothing to ...