oracle 将表名和字段名变为大写

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

begin
   for c in (select table_name tn from user_tables where table_name <> upper(table_name)) loop
       begin
          execute immediate 'alter table "'||c.tn||'" rename to '||c.tn;
       exception
          when others then
             dbms_output.put_line(c.tn||'已存在');
       end;
   end loop; 
end;

二、批量将空间内所有表的所有字段名变成大写

begin
  for t in (select table_name tn from user_tables) loop
      begin
         for c in (select column_name cn from user_tab_columns where table_name=t.tn) loop
             begin
                execute immediate 'alter table "'||t.tn||'" rename column "'||c.cn||'" to '||c.cn;
             exception
                when others then
                   dbms_output.put_line(t.tn||'.'||c.cn||'已经存在');
             end;
         end loop;
      end;
  end loop; 
end;

三、将用户空间的所有表名及所有字段变为大写

begin
   for t in (select table_name tn from user_tables where table_name <> upper(table_name)) loop
       begin
          for c in (select column_name cn from user_tab_columns where table_name=t.tn) loop
              begin
                 execute immediate 'alter table "'||t.tn||'" rename column "'||c.cn||'" to '||c.cn;
              exception
                 when others then
                    dbms_output.put_line(t.tn||'.'||c.cn||'已经存在');
              end;
          end loop;
      
          execute immediate 'alter table "'||t.tn||'" rename to '||t.tn;
          exception
             when others then
                dbms_output.put_line(t.tn||'已存在');
       end;
   end loop; 
end;