oracle批量删表///pl sql破解口令///常用命令

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--删除所有表的数据
begin
for x in (select t.table_name from user_tables t ) loop
execute immediate 'delete ' ||  x.table_name ; 
commit;
end loop ; 
end ;

pl sql破解口令

 Product Code(产品编号):4t46t6vydkvsxekkvf3fjnpzy5wbuhphqz
 serial Number(序列号):601769
 password(口令):xs374ca

查询所有表名:
select t.table_name from user_tables t;
查询所有字段名:
select t.column_name from user_col_comments t;
查询指定表的所有字段名:
select t.column_name from user_col_comments t where t.table_name = 'BIZ_DICT_XB';
查询指定表的所有字段名和字段说明:
select t.column_name, t.column_name from user_col_comments t where t.table_name = 'BIZ_DICT_XB';
查询所有表的表名和表说明:
select t.table_name,f.comments from user_tables t inner join user_tab_comments f on t.table_name = f.table_name;
查询模糊表名的表名和表说明:
select t.table_name from user_tables t where t.table_name like 'BIZ_DICT%';
select t.table_name,f.comments from user_tables t inner join user_tab_comments f on t.table_name = f.table_name where t.table_name like 'BIZ_DICT%';

--查询表的数据条数、表名、中文表名
select a.num_rows, a.TABLE_NAME, b.COMMENTS
from user_tables a, user_tab_comments b
WHERE a.TABLE_NAME = b.TABLE_NAME
order by TABLE_NA

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转载自blog.csdn.net/XUEER88888888888888/article/details/83869878