If you set DIALECT"RM", the following Compiler directives are set: 
    
 
    
 
         
           
            | ALIGN(2) 
               COMP-6(1) 
               COPYSEARCH(RM) 
               PARAMCOUNTCHECK 
               OLDINDEX 
               NOOPTIONAL-FILE 
               RETRYLOCK 
               RM
               SEQUENTIAL"LINE" 
               NOTRUNC 
               | 
 
        
 
      
The following settings are also enabled: 
      
 
        - The LOCKING clause of the SELECT statement is set to LOCK MODE IS AUTOMATIC for all file types. 
        
- Numeric data items are defined as SIGN TRAILING SEPARATE.