June 2011
Intermediate to advanced
590 pages
19h 31m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, Second Edition
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More About SQL
In this chapter, you used SQLite via Core Data. If you’re curious about what SQL commands Core Data is executing, you can use a command-line argument to log all communications with the SQLite database to the console. From the menu, choose Edit Scheme.... Select the Run Homepwner.app item and the Arguments tab. Add two arguments: -com.apple.CoreData.SQLDebug and 1.
Figure 17.15 Turning on Core Data logging
Build and run the application again. Make sure the debug area and console are visible so you can see the SQL logging. Add a few locations and inventory items; then navigate around the application looking at various items. ...
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