Ed Gibbs questions

Ed Gibbs answers

• ALTER TABLE CHECK CONSTRAINT
• remove the gap between columns of result in oracle
• C# MySQL sum InvalidCastException
• Grouping to find min,max for each group
• How to Prioritize OR condition in mysql
• unable to change MySQL column to have the NOT NULL constraint [closed]
• Calculate multiple values with sql with if expression
• Convert Varchar To Money
• Connect by clause to get the top of hierarchy
• Query which will give a list of dates between two date ranges