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Nov 7, 2018 · A simple example explaining how to use Google Vision API with Node js app and setting up ...Duration: 19:30 Posted: Nov 7, 2018

As with the previous examples in this chapter, this trigger begins by checking @@ROWCOUNT to ensure that at least one row was updated: -- First make sure at least one row was affected IF (@@ROWCOUNT > 0) BEGIN ... END; Once the trigger verifies that one or more rows were affected by the DML statement that fired the trigger, it turns off the rows affected messages and initializes a flag to indicate success or failure of the update operation: -- Turn off "rows affected" messages SET NOCOUNT ON; -- Initialize a flag to indicate update success DECLARE @UpdateSuccessful nchar(1) = N'N'; The trigger then checks to see if the columns designated as updatable were affected by the UPDATE statement. If the proper columns were affected by the UPDATE statement, the trigger performs updates on the appropriate base tables for the view. For purposes of this demonstration, the columns that are updatable by the trigger are the FirstName, MiddleName, and LastName columns from the Person.Person table, and the EmailAddress column from the Person. EmailAddress column. -- Check for updatable columns in the first table IF UPDATE(FirstName) OR UPDATE(MiddleName) OR UPDATE(LastName) BEGIN -- Update columns in the base table UPDATE Person.Person SET FirstName = i.FirstName, MiddleName = i.MiddleName, LastName = i.LastName FROM inserted i WHERE i.BusinessEntityID = Person.Person.BusinessEntityID; -- Set flag to indicate success SET @UpdateSuccessful = N'Y'; END; -- If updatable columns from the second table were specified, update those -- columns in the base table IF UPDATE(EmailAddress) BEGIN



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Optical Character Recognition in JavaScript - Spiceforms
27 Apr 2014 ... A round up of Optical Character Recognition tools in JavaScript . ... The very first example that we look at is a OCR recognition program that has ...

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Oct 21, 2016 · With their JavaScript port of the Tesseract optical character recognition engine, developers at MIT are looking to provide convenience and ...

The only layout container you haven t considered yet is the Canvas. It allows you to place elements using exact coordinates, which is a poor choice for designing rich data-driven forms and standard dialog boxes, but a valuable tool if you need to build something a little different (such as a drawing surface for a diagramming tool). The Canvas is also the most lightweight of the layout containers. That s because it doesn t include any complex layout logic to negotiate the sizing preferences of its children. Instead, it simply lays them all out at the position they specify, with the exact size they want.





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GOCR . js – 使用 JS 识别出图片中的文本- 梦想天空(山边小溪) - 博客园
2014年9月24日 ... GOCR . js 是 GOCR (开源的OCR 光学识别程序)项目的纯JavaScript 版本,使用 Emscripten 进行自动转换。这是一个简单的OCR (光学字符识别) ...

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Update the <body> of the defaulthtm file to display some literal text that prompts the user to enter a user name and password, and choose a background color of your liking (be aware that you can enter and format textual content by typing directly on the HTML designer): <html xmlns="http://wwww3org/1999/xhtml" > <head> <title>This is the Cars Web Site</title> </head> <body bgcolor="NavajoWhite"> <!-- Prompt for user input--> <h1 align="center"> The Cars Login Page</h1> <p align="center"> <br/> Please enter your <i>user name</i> and <i>password</i> </p> <form id="defaultPage"> </form> </body> </html> Now let s build the HTML form itself In general, each HTML widget is described using a name attribute (used to identify the item programmatically) and a type attribute (used to specify which UI element you are interested in placing in the <form> declaration).

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Step #1 - MediaDevices.getUserMedia(). MediaDevices.getUserMedia is a browser API that allows web apps to access user's camera and microphone.

To position an element on the Canvas, you set the attached Canvas.Left and Canvas.Top properties. Canvas.Left sets the number of pixels between the left edge of your element and the left edge of the Canvas. Canvas.Top sets the number of pixels between the top of your element and the top of the Canvas. Optionally, you can size your element explicitly using its Width and Height properties. This is more common when using the Canvas than it is in other panels because the Canvas has no layout logic of its own. If you don t set the Width and Height properties, your element will get its desired size in other words, it will grow just large enough to fit its content. If you change the size of the Canvas, it has no effect on the Controls inside. Here s a simple Canvas that includes four buttons: <Canvas Background="White"> <Button Canvas.Left="10" Canvas.Top="10" Content="(10,10)"></Button> <Button Canvas.Left="120" Canvas.Top="30" Content="(120,30)"></Button> <Button Canvas.Left="60" Canvas.Top="80" Width="50" Height="50" Content="(60,80)"></Button> <Button Canvas.Left="70" Canvas.Top="120" Width="100" Height="50" Content="(70,120)"></Button> </Canvas> Figure 3-16 shows the result.

-- Update columns in the base table UPDATE Person.EmailAddress SET EmailAddress = i.EmailAddress FROM inserted i WHERE i.BusinessEntityID = Person.EmailAddress.BusinessEntityID; -- Set flag to indicate success SET @UpdateSuccessful = N'Y'; END; Finally, if no updatable columns were specified by the UPDATE statement that fired the trigger, an error is raised and the transaction is rolled back: -- If the update was not successful, raise an error and roll back the -- transaction IF @UpdateSuccessful = N'N' RAISERROR('Must specify updatable columns.', 10, 127); Listing 7-11 demonstrates a simple UPDATE against the Sales.vIndividualCustomer view with the INSTEAD OF trigger from Listing 7-10 created on it. The result is shown in Figure 7-5. Listing 7-11. Updating a View Through an INSTEAD OF Trigger UPDATE Sales.vIndividualCustomer SET FirstName = N'Dave', MiddleName = N'Robert', EmailAddress = N'dave.robinett@adventure-works.com' WHERE BusinessEntityID = 1699;

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5 Nov 2018 ... The #1 jQuery Optical Character Recognition ( OCR ) script. Convert your scanned documents and images into editable text. Very easy to use ...

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