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SQL Problems and solutions
S. I. Moiseenko
05:40
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CHOOSE function
Data type conversion and CAST function page 2
COUNT DISTINCT and window functions
Explicit join operations
Exercise #28
Exercise #8 (tips and solutions) page 2
Exercise #8 (tips and solutions)
Exercise #7 (tips and solutions)
Exercise #6 (tips and solutions)
Exercise #2 (tips and solutions)
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