forpas questions

forpas answers

• Sum different values of same type in same column in one SQL query
• Pivoting data to show unique values for specific columns
• Question on using multiple SQL GROUP BY statements
• Does SQLite actually support DATE type?
• PostgreSQL - from long to wide format
• INSERT from SELECT statement, column count
• From sqlite syntax to mysql syntax
• Get the number of comments that are at least one hour apart
• Use SQLite SELECT to combine joined table column into one row for each category using a junction table
• Find missing values in the student table