Thursday, October 18, 2012

SQR execution process



Compile Time Process :
  1. Inserts External Source files
  2. Evaluates Compiler Directives like #if,#ifdef  and so on
  3. Resolves Substitution variables Ex: #define MAX 100
  4. Executes all ASK commands (ASK is used to take input) Program memory and work buffers are allocated, All memory arrays are created.
  5. Checks Syntax of Source file
  6. Optimizes SQL data Access
Run Time Process:
  1. Begins processing from Begin-Program and ends with End-Program. 
  2. Calculates the size of the working Report body.
  3. Processes Report Body.
  4. Processes Report Heading.
  5. Processed Report Footing.
  6. Writes O/P to file and gets ready for the next page.

No comments: