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(SQL Server) Append Encoded Binary Data to StringBuilderDemonstrates how to append encoded binary data to the contenets of a StringBuilder.
// Important: See this note about string length limitations for strings returned by sp_OAMethod calls. // CREATE PROCEDURE ChilkatSample AS BEGIN DECLARE @hr int DECLARE @sTmp0 nvarchar(4000) DECLARE @bd int EXEC @hr = sp_OACreate 'Chilkat_9_5_0.BinData', @bd OUT IF @hr <> 0 BEGIN PRINT 'Failed to create ActiveX component' RETURN END DECLARE @success int EXEC sp_OAMethod @bd, 'LoadFile', @success OUT, 'qa_data/jpg/starfish.jpg' IF @success = 0 BEGIN PRINT 'Failed to load file.' EXEC @hr = sp_OADestroy @bd RETURN END -- For example, let's say we want construct simple JSON containing the base64 representation of the above JPG file. DECLARE @sb int EXEC @hr = sp_OACreate 'Chilkat_9_5_0.StringBuilder', @sb OUT EXEC sp_OAMethod @sb, 'Append', @success OUT, '{ "jpg": "' -- GetEncodedSb appends the enocded representation of the binary data to the StringBuiler passed in the 2nd arg. EXEC sp_OAMethod @bd, 'GetEncodedSb', @success OUT, 'base64', @sb EXEC sp_OAMethod @sb, 'Append', @success OUT, '" }' EXEC sp_OAMethod @sb, 'GetAsString', @sTmp0 OUT PRINT @sTmp0 -- Output looks like this: -- { "jpg": "/9j/4AAQSkZJRgABAg...rcQ+vo//2Q==" } EXEC @hr = sp_OADestroy @bd EXEC @hr = sp_OADestroy @sb END GO |
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