user158017 questions

user158017 answers

• Unable to add ' ' to the Web site. Access is denied (550)
• How do I select a date that is 4 days ago at this time?
• Why select Top clause could lead to long time cost
• SQLPlus settings to generate tab-separated data file
• Undo a mysql UPDATE command
• What are the differences between T-SQL, SQL Server and SQL [duplicate]