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Oracle “Partition By” Keyword
...d then use that in a calculation against this records salary without a sub select, which is much faster.
Read the linked AskTom article for further details.
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How to replace part of string by position?
... extra cost by working within a pre-allocated section of memory and moving chars round within it.
– redcalx
Apr 17 '18 at 15:52
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INNER JOIN ON vs WHERE clause
...ed is a cartesian product of the tables to which a filter is applied which selects only those rows with joining columns matching.
It's easier to see this with the WHERE syntax.
As for your example, in MySQL (and in SQL generally) these two queries are synonyms.
Also note that MySQL also has a STR...
Why is it important to override GetHashCode when Equals method is overridden?
...yeah, looks like I left them out when I copy-pasted the code from a region selection in Visual Studio. I also thought people would figure it out both.
– Trap
Apr 13 '12 at 12:11
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Get table column names in MySQL?
...DESCRIBE my_table;
Or in newer versions you can use INFORMATION_SCHEMA:
SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'my_database' AND TABLE_NAME = 'my_table';
Or you can use SHOW COLUMNS:
SHOW COLUMNS FROM my_table;
...
How can I remove the string “\n” from within a Ruby string?
...gsub. The different quote marks behave differently.
Double quotes " allow character expansion and expression interpolation ie. they let you use escaped control chars like \n to represent their true value, in this case, newline, and allow the use of #{expression} so you can weave variables and, well...
A valid provisioning profile for this executable was not found for debug mode
...& Files" -->Target --> expand it --> right click your app and select Clean "your app"
3) Goto->Window-->Organizer
4) In the Devices tab on the left, select your iphone
5) In the Provisioning section of the selected iphone delete all the current profiles (if any)
6) Unplug your...
How can I change IIS Express port for a site
...
In Solution Explorer, right-click the name of the application and then select Properties.
Click the Web tab.
In the Servers section, under Use Local IIS Web server, in the Project URL box change the port number.
To the right of the Project URL box, click Create Virtual Directory, and then ...
Change Schema Name Of Table In SQL
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Create Schema :
IF (NOT EXISTS (SELECT * FROM sys.schemas WHERE name = 'exe'))
BEGIN
EXEC ('CREATE SCHEMA [exe] AUTHORIZATION [dbo]')
END
ALTER Schema :
ALTER SCHEMA exe
TRANSFER dbo.Employees
...
Limit text length to n lines using CSS
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Basically, the jQuery will check any .text element, and if there are more chars than the preset max var, it will cut the rest off and add an ellipsis.
There are no caveats to this approach, however this code example is meant only to demonstrate the basic idea - I wouldn't use this in production w...