Compare String

1) Comapre Both String are same or not
2) Case sensitive is  allow.
3) Both String are different  then use this.

    SELECT CheckSum('nirav')   
    SELECT CheckSum('Nirav')

 
1) Comapre Both String are same or not.
2) Case sensitive is not  allow.

  SELECT binary_CheckSum('nirav')  
  SELECT binary_CheckSum('Nirav')