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Sum Strings as Numbers
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SQL Basics: Simple table totaling.
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SQL with LOTR: Elven Wildcards
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SELECT prime numbers
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SQL Grasshopper: Select Columns
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On the Canadian Border (SQL for Beginners #2)
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Register for the Party (SQL for Beginners #3)
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Collect Tuition (SQL for Beginners #4)
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Even or Odd
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