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MySQL: how to get the difference between two timestamps in seconds
Is there a way I can make a query in MySQL that will give me the difference between two timestamps in seconds, or would I need to do that in PHP? And if so, how would I go about doing that?
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...VCR也没能让电影院关门。
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不是所有人都想要创造一辆无人驾驶车，或者清洁能源，或者解决十亿人的痛点。但在我内心，有一份...
Get difference between two lists
... 3:3}
>>> pprint(DeepDiff(t1, t2), indent=2)
{ 'type_changes': { 'root[2]': { 'newtype': <class 'str'>,
'newvalue': '2',
'oldtype': <class 'int'>,
'oldvalue': 2}}}
Value of an it...
SQL/mysql - Select distinct/UNIQUE but return all columns?
...ause the behavior on the other columns is unspecified. (The first works in MySQL, if that's what you're using.)
You could fetch the distinct fields and stick to picking a single arbitrary row each time.
On some platforms (e.g. PostgreSQL, Oracle, T-SQL) this can be done directly using window funct...
MySQL WHERE: how to write “!=” or “not equals”?
...ered Jul 10 '12 at 20:53
RolandoMySQLDBARolandoMySQLDBA
40.6k1515 gold badges8181 silver badges124124 bronze badges
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Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
...been finalized, yet. As I'm guessing the upper-most keys of:
[HKEY_CLASSES_ROOT\Installer\Dependencies\,,amd64,14.0,bundle]
and
[HKEY_CLASSES_ROOT\Installer\Dependencies\,,x86,14.0,bundle]
are subject to change, or at least have different nested GUIDs, I'm going to use list the key that ends with a...
How do I return rows with a specific value first?
...L Server, but that's because the syntax is non-standard and only works for MySQL. When using a CASE statement (which is standard SQL) SQL Server can very well use an expression in the ORDER BY clause. "too stupid to process equivalency tests" is simply wrong. If at all it should read: "does not supp...
MySQL - why not index every field?
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The link is for MS SQL Server; this question is for MySQL
– OMG Ponies
Mar 26 '11 at 23:38
6
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MySQL: Order by field size/length
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@mastazi according to MySQL documentation: OCTET_LENGTH() is a synonym for LENGTH().
– Heitor
Oct 1 '17 at 5:35
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Multiple queries executed in java in single statement
...BC as it currently provides an exception even though it is possible in the MySQL query browser.
6 Answers
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