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Print array elements on separate lines in Bash?
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@espaciomore '%s\n' is the format for the printf function's output. %s means a placeholder for a string argument (in this case the array element) and \n adds a line break after that. Thus, there will be a string and a line break in t...
Ruby replace string with captured regex pattern
...lso note that when using Ruby inline (on the command line with -e), it is more likely to see double quotes: printf "Punkinhead the name" | ruby -ne 'puts gsub /.*(the name)/, "Jonathans \\1"' because expression provided to -e is usually wrapped in single quotes.
– Jonathan Kom...
Best way to use PHP to encrypt and decrypt passwords? [duplicate]
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Why does this async action hang?
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How do I call setattr() on the current module?
...scope, the latter is equivalent to:
vars()[name] = value
which is a bit more concise, but doesn't work from within a function (vars() gives the variables of the scope it's called at: the module's variables when called at global scope, and then it's OK to use it R/W, but the function's variables w...
Why does flowing off the end of a non-void function without returning a value not produce a compiler
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SQL how to increase or decrease one for a int column in one command
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They both can handle your question. However, the first syntax allows for more flexibility to update the record rather than just replace it (as the second one does).
Keep in mind that for both to exist, there has to be a UNIQUE key defined...
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Is it a good idea to index datetime field in mysql?
...days, but as long as it's less than about 1/3 of the total rows it will be more efficient to use an index on the column.
Your question about creating an efficient database is very broad. I'd say to just make sure that it's normalized and all appropriate columns are indexed (i.e. ones used in joins...
What are the First and Second Level caches in Hibernate?
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this actually is more clearer for me. first is per session where second is for multi session, simple for me to keep in mind.can't we vote up twice? :D
– black sensei
Jun 2 '12 at 10:45
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Python string.join(list) on object array rather than string array
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