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Commands out of sync; you can't run this command now
...ed to run $stmt->store_result(); I think your response should make that more clear.
– Shadow
Mar 14 '13 at 7:24
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Better way to check variable for null or empty string?
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109
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'printf' vs. 'cout' in C++
...ile this doesn't appear too crazy (it's just two times longer), things get more crazy when you actually format arguments, instead of just printing them. For example, printing of something like 0x0424 is just crazy. This is caused by std::cout mixing state and actual values. I never saw a language wh...
How do I implement interfaces in python?
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79
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SQL WHERE.. IN clause multiple columns
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or more generally SELECT * FROM table INNER JOIN otherTable ON ( table.x = otherTable.a AND table.y = otherTable.b)
– ala
Jul 16 '09 at 7:56
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Difference between partition key, composite key and clustering key in Cassandra?
...ple as possible.
The primary key is a general concept to indicate one or more columns used to retrieve data from a Table.
The primary key may be SIMPLE and even declared inline:
create table stackoverflow_simple (
key text PRIMARY KEY,
data text
);
That means that it is ma...
Get a random item from a JavaScript array [duplicate]
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How can I String.Format a TimeSpan object with a custom format in .NET?
...h this solution, because it will not work correctly when the Hours part is more than 24
– Zoltan Tirinda
Mar 17 '16 at 21:15
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How do I replace whitespaces with underscore?
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84
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How to mkdir only if a directory does not already exist?
...'t exist.
Some implementation like GNU mkdir include mkdir --parents as a more readable alias, but this is not specified in POSIX/Single Unix Specification and not available on many common platforms like macOS, various BSDs, and various commercial Unixes, so it should be avoided.
If you want an er...