sticky bit questions

sticky bit answers

• Don't want negative result of subtraction in MySQL
• get hahes key to string in perl
• Postgresql Text Array get rows NOT LIKE certain value?
• Multiple charactor match with LIKE clause
• CONCAT Function in SQLite : Error - SQL Error [1]: [SQLITE_ERROR] SQL error or missing database (no such function: CONCAT)
• Find Last Record in Chain - a Customer Merge Process
• Trigger raising: "ERROR: stack depth limit exceeded"
• Execute select statement IF table exists
• Missing rows due to too strict WHERE statement
• Set null values to a default in Postgresql case statement