The precompiler "prepares" the source program for compilation by replacing EXEC SQL by a CALL and by putting the SQL in comment. The precompiler performs the following:
* includes DCLGEN member
* includes SQLCA
* looks for SQL statements and for host variable definitions
* verifies the SQL syntax
* matches each column and table name in the SQL to the DECLARE TABLE statements.
* prepares the SQL for compilation or assembly in the host language
* produces a DBRM and stores it in PDS
* can be invoked in DB2l or in batch.
No comments:
Post a Comment