T I questions

T I answers

• How to use a specification pattern for my requirements?
• How do you sync a progress bar to data?
• T-SQL - Determine number of specific days between 2 dates based on sales
• SQL / PHP: get all results within time X to Y, and detect if there are available times inbetween
• Joining poorly designed SQL tables?
• Select distinct value if only ONE distinct value exists?
• What are horizontal and vertical partitions in database and what is the difference?
• Find 'missing' rows across two result sets
• OOP Design for Card Game Classes
• IIF query using OR operators not working