创建新表：
1，五要素
2，not null
3，默认值
4，字段注释，表名称
5，索引
6，指定约束名称
-- ----------------------------
-- Table structure for Table
-- ----------------------------
IF EXISTS (SELECT * FROM sys.all_objects WHERE object_id = OBJECT_ID(N\'[dbo].[TableName]\') AND type IN (\'U\'))
DROP TABLE [dbo].[TableName]
CREATE TABLE [dbo].[TableName] (
[CreatedUserID] int DEFAULT ((0)) NOT NULL,
[CreatedTime] datetime DEFAULT (getdate()) NOT NULL,
[ModifiedUserID] int DEFAULT ((0)) NOT NULL,
[ModifiedTime] datetime DEFAULT (getdate()) NOT NULL,
[IsDelete] int DEFAULT ((1)) NOT NULL
)
--指定属性名称
EXEC sp_addextendedproperty
\'MS_Description\', N\'创建人\',
\'SCHEMA\', N\'dbo\',
\'TABLE\', N\'TableName\',
\'COLUMN\', N\'CreatedUserID\'
EXEC sp_addextendedproperty
\'MS_Description\', N\'创建时间\',
\'SCHEMA\', N\'dbo\',
\'TABLE\', N\'TableName\',
\'COLUMN\', N\'CreatedTime\'
EXEC sp_addextendedproperty
\'MS_Description\', N\'修改人\',
\'SCHEMA\', N\'dbo\',
\'TABLE\', N\'TableName\',
\'COLUMN\', N\'ModifiedUserID\'
EXEC sp_addextendedproperty
\'MS_Description\', N\'修改时间\',
\'SCHEMA\', N\'dbo\',
\'TABLE\', N\'TableName\',
\'COLUMN\', N\'ModifiedTime\'
EXEC sp_addextendedproperty
\'MS_Description\', N\'是否有效,1:有效,0:无效\',
\'SCHEMA\', N\'dbo\',
\'TABLE\', N\'TableName\',
\'COLUMN\', N\'IsDelete\'
EXEC sp_addextendedproperty
\'MS_Description\', N\'表名称\',
\'SCHEMA\', N\'dbo\',
\'TABLE\', N\'TableName\'
--指定默认值（缺省）、指定约束名称（不指定会生成随机名称，不利于维护）
ALTER TABLE [dbo].[tableName] ADD CONSTRAINT [DF_tableName_CreatedUserId] DEFAULT ((0)) FOR [CreatedUserId]
ALTER TABLE [dbo].[tableName] ADD CONSTRAINT [DF_tableName_CreatedTime] DEFAULT (getdate()) FOR [CreatedTime]
ALTER TABLE [dbo].[tableName] ADD CONSTRAINT [DF_tableName_ModifiedUserId] DEFAULT ((0)) FOR [ModifiedUserId]
ALTER TABLE [dbo].[tableName] ADD CONSTRAINT [DF_tableName_ModifiedTime] DEFAULT (getdate()) FOR [ModifiedTime]
ALTER TABLE [dbo].[tableName] ADD CONSTRAINT [DF_tableName_IsDelete] DEFAULT ((1)) FOR [IsDelete]
-- ----------------------------
-- Indexes structure for table Table
-- ----------------------------
CREATE NONCLUSTERED INDEX [IX_Table_xxxID]
ON [dbo].[Table] (
[xxxID] ASC
)
-- ----------------------------
-- Primary Key structure for table Table
-- ----------------------------
ALTER TABLE [dbo].[Table] ADD CONSTRAINT [PK_Table] PRIMARY KEY CLUSTERED ([xxxOOOID])
WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
ON [PRIMARY]