declare column_exists exception; 
 pragma exception_init (column_exists , -01430);
 begin execute immediate 'ALTER TABLE BPE ADD (cMunIni VARCHAR2(7))';
exception when column_exists then null;
 end;
/
declare column_exists exception;
 pragma exception_init (column_exists , -01430);
 begin execute immediate 'ALTER TABLE BPE ADD (cMunFim VARCHAR2(7))';
exception when column_exists then null;
 end;
/
declare column_exists exception;
 pragma exception_init (column_exists , -01430);
 begin execute immediate 'ALTER TABLE BPE ADD (UFIni VARCHAR2(2))';
exception when column_exists then null;
 end;
/
declare column_exists exception;
 pragma exception_init (column_exists , -01430);
 begin execute immediate 'ALTER TABLE BPE ADD (UFFim VARCHAR2(2))';
exception when column_exists then null;
 end;
/
declare column_exists exception;
 pragma exception_init (column_exists , -01430);
 begin execute immediate 'ALTER TABLE BPE ADD (nBP VARCHAR2(9))';
exception when column_exists then null;
 end;