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How to use greater than operator with date?
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what happens if its timestamp?
– ichimaru
Jul 19 '18 at 6:16
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How to do INSERT into a table records extracted from another table
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actually if no. of columns and their types are same and those exits in same order in the tables then you can simply say, INSERT INTO Table2 SELECT * FROM table1;
– sactiw
Dec 21 '15 at 17:23
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Keyboard shortcut to comment lines in Sublime Text 3
...e to comment out a line or a block of lines with Ctrl + / and Ctrl + Shift + / . According to the menu Edit > Comment these shortcuts should be valid, but in Sublime Text 3 (build 3047) they no longer seem to work. Does anybody know the right default keyboard shortcuts for Linux and MacOS? ...
How to make div background color transparent in CSS
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@Subir if you need another way, see Jerska's answer. But as said, it seems questionable why you want to avoid opacity in the first place.
– Pekka
Aug 4 '12 at 9:07
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Java “params” in method signature?
In C#, if you want a method to have an indeterminate number of parameters, you can make the final parameter in the method signature a params so that the method parameter looks like an array but allows everyone using the method to pass as many parameters of that type as the caller wants.
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How to get size of mysql database?
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@Vidz are you using InnoDB engine. If you do, you can free space unless you use file_per_table and alter tables.
– mandza
Nov 1 '14 at 9:32
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Query to count the number of tables I have in MySQL
...ne query to count the number of tables in my database. Is that possible? If so, what is the query?
12 Answers
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entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
...he context in EmployeeService. As a result you have city1 attached to two different context which is what the exception complains about.
You can fix this by creating a context outside of the service classes and injecting and using it in both services:
EmployeeService es = new EmployeeService(conte...
Function to clear the console in R and RStudio
I am wondering if there is a function to clear the console in R and, in particular, RStudio I am looking for a function that I can type into the console, and not a keyboard shortcut.
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SQL set values of one column equal to values of another column in the same table
...s a function that returns its first non-null argument.
In this example, if B on a given row is not null, the update is a no-op.
If B is null, the COALESCE skips it and uses A instead.
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