--查看对象是否已经存在 
--数据库是否存在 
--if exists (select * from sys.databases where name = ’数据库名’)   
--  drop database [数据库名] 
if exists(select * from sys.databases where name='FGM_POS') 
print '存在' 
--drop database [数据库名] 
--表是否存在 
--if exists (select * from sysobjects where id = object_id(N’[表名]’) and OBJECTPROPERTY(id, N’IsUserTable’) = 1)   
--  drop table [表名] 
if exists (select * from sysobjects where id =OBJECT_ID(N'[FGM_bt_ePlnMain]') and OBJECTPROPERTY(id,N'IsUserTable')=1) 
print '存在' 
--drop table [表名] 
--或 
if exists (select * from sysobjects where id =OBJECT_ID(N'dbo.FGM_bt_ePlnMain') and OBJECTPROPERTY(id,N'IsUserTable')=1) 
print '存在' 
--存储过程是否存在 
--if exists (select * from sysobjects where id = object_id(N’[存储过程名]’) and OBJECTPROPERTY(id, N’IsProcedure’) = 1)   
--  drop procedure [存储过程名] 
if exists (select * from sysobjects where id =OBJECT_ID(N'[FGM_sp_SyncePlnMain]') and OBJECTPROPERTY(id,N'IsProcedure')=1) 
print '存在' 
--或 
if exists (select * from sysobjects where id =OBJECT_ID(N'dbo.FGM_sp_SyncePlnMain') and OBJECTPROPERTY(id,N'IsProcedure')=1) 
print '存在' 
--临时表是否存在 
--if object_id(’tempdb..#临时表名’) is not null     
--  drop table #临时表名 
select * into #temp from dbo.FGM_bt_ConsumInfoDetail_B 
if OBJECT_ID ('tempdb..#temp')is not null 
print '存在' 
--或者 
if exists(select * from tempdb.dbo.sysobjects where id=OBJECT_ID(N'tempdb..#temp')and type='U') 
print '存在' 
--视图是否存在 
----SQL Server 2000   
--IF EXISTS (SELECT * FROM sysviews WHERE object_id = '[dbo].[视图名]'   
----SQL Server 2005   
--IF EXISTS (SELECT * FROM sys.views WHERE object_id = '[dbo].[视图名]'  --SQL Server 2000 
--IF EXISTS (SELECT * FROM sysviews WHERE object_id = '[dbo].[视图名]’ 
----SQL Server 2005 
-
-IF EXISTS (SELECT * FROM sys.views WHERE object_id = ’[dbo].[视图名]’ 
----SQL Server 2008 
if exists (select * from sysobjects where id=OBJECT_ID(N'[dc_adplan]') and type='V') 
print '存在' 
--或 
if exists (select * from sysobjects where id=OBJECT_ID(N'dbo.dc_adplan') and type='V') 
print '存在' 
--drop view dbo.dc_adplan 
--函数是否存在 
--if exists (select * from dbo.sysobjects where id = object_id(N’[dbo].[函数名]’) and xtype in (N’FN’, N’IF’, N’TF’))     
-- drop function [dbo].[函数名] 
if exists (select * from dbo.sysobjects where id=OBJECT_ID (N'dbo.GetResourceName')and xtype in (N'FN',N'IF',N'TF')) 
print '存在' 
--或 
if exists (select * from dbo.sysobjects where id=OBJECT_ID (N'[GetResourceName]')and xtype in (N'FN',N'IF',N'TF')) 
print '存在' 
--drop function dbo.GetResourceName 
--列是否存在 
-
-if exists(select * from syscolumns where id=object_id(’表名’) and name=’列名’)   
--  alter table 表名 drop column 列名 
if exists(select * from syscolumns where id =OBJECT_ID('FGM_bt_ePlnMain') and name='ePlnName') 
print '存在' 
--alter table 表名 drop column 列名 
--判断列是否自自增列 
--if columnproperty(object_id('table'),'col’,’IsIdentity’)=1   
--  print '自增列'   
--else   
--  print '不是自增列'   
if COLUMNPROPERTY(object_id ('FGM_bt_ePlnMain'),'ePlnID','IsIdentity')=1 
print '自增列' 
else 
print '非' 
--查看数据库中对象 
--select * from sys.sysobjects where name='对象名'
select * from sys.sysobjects where name='FGM_bt_ePlnMain'
--获取用户创建的对象信息 
drop table if exists user
SELECT [name],[id],crdate FROM sysobjects where xtype='U'
/*   
xtype 的表示参数类型，通常包括如下这些   
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   
*/

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