Jocelyn questions

Jocelyn answers

• How do I speed up a SQL query that uses a BETWEEN condition?
• Delete file onclick with PHP [closed]
• Getting blank value for $_SERVER['AUTH_USER']
• MySQL European Characters
• When should I use parenthesis in require/include statements? [duplicate]
• Selecting with UNION but limiting every subquery and receiving distinct values
• DATETIME and TIMESTAMP Length/Values Error
• MySQL : Why is comparing primary key to a randomly generated number not using the index?
• How to partition MySQL table by column that is not in the unique index
• How to replace all non-alphabetic characters with UTF-8 support in PHP