| 
        
        Function
         | 
      
        
        Returns
         | 
     
| 
        
        DATABASE()
         | 
      
        
        Name of the database, corresponding to the connection handle (hdbc).
         | 
     
| 
        
        IFNULL(exp,value)
         | 
      
        
        value, if exp is null.
         | 
     
| 
        
        USER()
         | 
      
        
        Authorization name of the user.
         |