SQL Databases For dplyr Users: Selecting Columns Using SELECT

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While previewing SQL code, I am constantly getting message "Failed to parse SQL preview comment" what might be the reason? Thanks!

anjuair
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Although I'm able to run and load previous SQL intro, I keep getting and have working directory set to correct path, when calling FROM surveys (or any other file) I keep getting message "Failed to query database: database disk image is malformed." I reloaded file as per previous video. Any suggested solutions?

Robert_the_Aleut
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