Mike McQuillan


Stairway to U-SQL icon

Stairway to U-SQL Level 22: Creating a Custom Extractor

Throughout this series, we’ve consistently dealt with delimited text files; comma and tab, for instance. We’ve used the U-SQL built-in extractors to process these files. But what if we need to deal with different types of file, like JSON, XML or fixed width? That’s where custom extractors come in. U-SQL provides us with the ability […]

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2020-07-01

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Question of the Day

What's Wrong with this Table?

What's wrong with this code and causes an error?

CREATE TABLE Customer
(
    CustomerID INT NULL,
    FirstName NVARCHAR(50) NOT NULL,
    LastName NVARCHAR(50) NULL,
    Email NVARCHAR(100) NOT NULL,
CONSTRAINT CustomerPK PRIMARY KEY (CustomerID, LastName)
);


See possible answers