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How to create a custom string representation for a class object?
Consider this class:
5 Answers
5
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Is it possible to for SQL Output clause to return a column not being inserted?
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INSERT INTO ReportOption (field1, field2...)
OUTPUT @ReportOption.PracticeId, --> this is the field I don't know how to get
inserted.ReportOptionId
INTO @PracticeReportOption (PracticeId, ReportOptionId)
SELECT field1, field2
FROM @ReportOption
with
MERGE INTO ReportOption USING @...
PostgreSQL: Is it better to use multiple databases with one schema each, or one database with multip
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... and so i'll have 1 database, with inside the schemas: $customer1_user_schema, $customer2_user_schema, $customer3_user_schema, $customer1_documents_schema, $customer2_documents_schema, $customer3_documents_schema? Mh... dont seem a reliable way... and what about...
Is it possible to use global variables in Rust?
I know that in general, global-variables are to be avoided. Nevertheless, I think in a practical sense, it is sometimes desirable (in situations where the variable is integral to the program) to use them.
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How to declare constant map
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10 : "X",
9 : "IX",
5 : "V",
4 : "IV",
1 : "I",
}
Inside a func you can declare it like:
romanNumeralDict := map[int]string{
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And in Go there is no such thing as a constant map. More information can be found here.
Try it out on the Go playground.
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Difference between len() and .__len__()?
...han meets the eye, and generally should not be called directly.
It was decided at some point long ago getting the length of something should be a function and not a method code, reasoning that len(a)'s meaning would be clear to beginners but a.len() would not be as clear. When Python started __len_...
What is the difference between URI, URL and URN? [duplicate]
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Uniform Resource Identifier (URI) is a string of characters used to identify a name or a resource on the Internet
A URI identifies a resource either by location, or a name, or both. A URI has two specializations known as URL and URN.
A Unif...
Is there an R function for finding the index of an element in a vector?
...to use which(%in%). BTW, there is no reason to delete your answer. It's valid information.
– Joris Meys
Apr 7 '11 at 13:36
1
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Allow CORS REST request to a Express/Node.js application on Heroku
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The reason it did is because you need to have it defined before the app.use(app.router); Cheers!
– Michal
Aug 19 '12 at 14:34
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Comparing two dataframes and getting the differences
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This approach, df1 != df2, works only for dataframes with identical rows and columns. In fact, all dataframes axes are compared with _indexed_same method, and exception is raised if differences found, even in columns/indices order.
If I got you right, you want not to find changes, ...