August 2019
Beginner to intermediate
696 pages
15h 45m
English
book
Mastering SQL Server 2017
by Milos Radivojevic, Dejan Sarka, William Durkin, Christian Cote, Matija Lah
Content preview from Mastering SQL Server 2017
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How it works...
The JSON File destination receives the rows from the upstream component, stores them in a variable (50 rows at a time), and converts the row set into a JSON document, which it then loads into a file in the file system.
The JSONFileInput_ProcessInput method contains all the logic needed to process the incoming pipeline data; it creates batches of up to 50 rows so that no resulting JSON document contains more than 50 items.
The WriteJSONFile function uses the Serialize() method of the JavaScriptSerializer class to create a JSON document from the row set, and the metadata needed to create the document's structure is provided by the AirportInfo class.
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