1. THE CONIDITION OPERATORS
    1. SQL – Operators 
      1. Arithmetic Operators
      2. Comparison Operators
      3. Logical Operators
    2. SQL – Expressions 
      1. Boolean Expressions
      2. Numeric Expressions
      3. Date Expressions
    3. IN – Operators 
    4. BETWEEN – Operators 
  2. FUNCTION OPERATORS
    1. MIN () Function
    2. MAX () Function
    3. COUNT () Function
    4. SUM () Function
    5. AVG () Function
  3.  Summary
Material File