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Querying data by joining two tables in two database on different servers
There are two tables in two different databases on different servers, I need to join them so as to make few queries. What options do I have? What should I do?
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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
In PostgreSQL I have a table with a varchar column. The data is supposed to be integers and I need it in integer type in a query. Some values are empty strings.
The following:
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How to rename a single column in a data.frame?
... .@JoshuaUlrich - This doesn't seem to work if the column name is something like "A,B,C,X,Y,Z" where I want to rename it to Y using testData[379] <- "Y".
– Chetan Arvind Patil
Jan 17 '19 at 16:10
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Prevent segue in prepareForSegue method?
Is it possible to cancel a segue in the prepareForSegue: method?
10 Answers
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Call AngularJS from legacy code
I'm using AngularJS to build HTML controls that interact with a legacy Flex application. All callbacks from the Flex app must be attached to the DOM window.
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Get all Attributes from a HTML element with Javascript/jQuery
I want to put all attributes in a Html element into an array:
like i have a jQuery Object, whichs html looks like this:
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Maven: Non-resolvable parent POM
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Just for reference.
The joys of Maven.
Putting the relative path of the modules to ../pom.xml solved it.
The parent element has a relativePath element that you need to point to the directory of the parent. It defaults to ..
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List of zeros in python [duplicate]
How can I create a list which contains only zeros? I want to be able to create a zeros list for each int in range(10)
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How can I temporarily disable a foreign key constraint in MySQL?
Is it possible to temporarily disable constraints in MySQL?
10 Answers
10
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Check if a subview is in a view
I'm making an app where I add a subview to a view using addSubview: on an IBAction . In the same way, when the button with that IBAction is touched again should call removeFromSuperview on that subview added on that IBAction :
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