前言

当使用powerdesigner创建数据库时要注意大小写。
注:以下脚本在oracle 10g,11g上正确执行

一、批量将表名变为大写

 1 begin
 2    for c in (select table_name tn from user_tables where table_name <> upper(table_name)) loop
 3        begin
 4           execute immediate 'alter table "'||c.tn||'" rename to '||c.tn;
 5        exception
 6           when others then
 7              dbms_output.put_line(c.tn||'已存在');
 8        end;
 9    end loop; 
10 end;

二、批量将空间内所有表的所有字段名变成大写

 1 begin
 2   for t in (select table_name tn from user_tables) loop
 3       begin
 4          for c in (select column_name cn from user_tab_columns where table_name=t.tn) loop
 5              begin
 6                 execute immediate 'alter table "'||t.tn||'" rename column "'||c.cn||'" to '||c.cn;
 7              exception
 8                 when others then
 9                    dbms_output.put_line(t.tn||'.'||c.cn||'已经存在');
10              end;
11          end loop;
12       end;
13   end loop; 
14 end;

三、将用户空间的所有表名及所有字段变为大写

 1 begin
 2    for t in (select table_name tn from user_tables where table_name <> upper(table_name)) loop
 3        begin
 4           for c in (select column_name cn from user_tab_columns where table_name=t.tn) loop
 5               begin
 6                  execute immediate 'alter table "'||t.tn||'" rename column "'||c.cn||'" to '||c.cn;
 7               exception
 8                  when others then
 9                     dbms_output.put_line(t.tn||'.'||c.cn||'已经存在');
10               end;
11           end loop;
12       
13           execute immediate 'alter table "'||t.tn||'" rename to '||t.tn;
14           exception
15              when others then
16                 dbms_output.put_line(t.tn||'已存在');
17        end;
18    end loop; 
19 end;