? ? ? ? --execute immediate notnullstring;? ? ? ? ? ?
? ? ? ? end;
? ? ? else
? ? ? ? begin
? ? ? ? dbms_output.put_line('--当前数据表'||myrecord.TABLE_NAME||'存在字段名为ID，且数据类型为NUMBER的列');? ?
? ? ? ? --创建一个序列? ?
? ? ? ? seqstring:='select count(*) into counter from dual? where exists(select * from user_sequences where sequence_name='''||seqname||''');if counter>0 then execute immediate ''drop sequence '||seqname||'''; end if; execute immediate '' create sequence SEQ_'||tablestring||'? INCREMENT BY 1 START WITH 1? NOMAXVALUE? NOCYCLE? NOCACHE'';';?
? ? ? ? dbms_output.put_line(seqstring);
? ? ? ? --execute immediate seqstring;
? ? ? ? --创建一个触发器
? ? ? ? trigerstring:='select count(*) into counter from dual? where exists(select * from user_triggers where trigger_name='''||trgname||''');if counter>0 then execute immediate ''drop trigger '||trgname||'''; end if; execute immediate '' create trigger TRG_'||tablestring||' BEFORE INSERT ON '||myrecord.TABLE_NAME||' FOR EACH ROW WHEN (new.'||keyidname||' is null) begin? select '||seqname||'.nextval into: new.'||keyidname||' from dual; end'';';? ? ? ? ?
? ? ? ? dbms_output.put_line(trigerstring);
? ? ? ? --execute immediate trigerstring;
? ? ? ? --添加主键约束? ? ? ?
? ? ? ? constring:='select count(*) into counter from dual? where exists(select * from user_constraints where constraint_name='''||pkname||''');if counter>0 then execute immediate ''drop constraint '||pkname||'''; end if; execute immediate ''alter table '||myrecord.TABLE_NAME||' add constraint '||pkname||' primary key('||keyidname||')'';';
? ? ? ? dbms_output.put_line(constring);
? ? ? ? --execute immediate constring;
? ? ? ? --更新主键不为空
? ? ? ? notnullstring:='select count(*) into counter from dual? where exists(select * from user_tab_cols where table_name='''||myrecord.TABLE_NAME||'''? and column_name='''||keyidname||''' AND NULLABLE=''Y'' );if counter>0 then execute immediate ''alter table '||myrecord.TABLE_NAME||'? modify '||keyidname||' not null''; end if;';
? ? ? ? dbms_output.put_line(notnullstring);
? ? ? ? --execute immediate notnullstring;? ?
? ? ? ? end;
? ? ? end if;
? ? end;
? end if;
? ? ? dbms_output.put_line('');
end;
else
exit;
end if;
?
end loop;?
else? ?
dbms_output.put_line('--游标没有打开');?
end if;?
close mycursor;
? ? ? dbms_output.put_line('end;');
end;