sqlserver、oracle 查询当前数据库有多少张用户表

================sqlserver===================

select count(1) from sysobjects where xtype='U'

数视图: 
select count(1) from sysobjects where xtype='V' 
数存储过程 
select count(1) from sysobjects where xtype='P'
用户表

 SELECT * FROM sysobjects WHERE (xtype = 'U')

C = CHECK 约束 
D = 默认值或 DEFAULT 约束 
F = FOREIGN KEY 约束 
L = 日志 
FN = 标量函数 
IF = 内嵌表函数 
P = 存储过程 
PK = PRIMARY KEY 约束（类型是 K） 
RF = 复制筛选存储过程 
S = 系统表 
TF = 表函数 
TR = 触发器 
U = 用户表 
UQ = UNIQUE 约束（类型是 K） 
V = 视图 
X = 扩展存储过程

 

 

====================oracle======================

Select Count(*) From User_Tables

Select * From User_Tables