9.2 Sintaks SQL Tingkat Lanjut

9.2.1. SQL Limit
9.2.2. SQL Alias
9.2.3. SQL Join
9.2.4. SQL Union
9.2.5. SQL Is Null dan Is Not Null
9.2.6. SQL Dates
9.2.7. SQL Ifnull()
9.2.8. SQL Case When