Just as high-level programming languages do, Silk Performer
               offers statements for expressing sequences, selections, and
               iterations. The following statements are available:
            
            
               - Assignments
 
               - If statement
 
               - While statement
 
               - For statement
 
               - Loop statement
 
               - Exit statement
 
               - Return statement
 
               - Write statement
 
            
            
                Special simulation statements
               
                  - Wait statement
 
                  - Halt statement
 
                  - Throw statement
 
               
             
            
                Database access statements
               
                  -  SQL
                     
                     call
                     
                  
 
                  - Commit statement
 
                  - Rollback statement
 
                  - Fetch statement