获取SqlServer2005表结构(字段，主键，外键，递增，描述)1.获取表的基本字段属性
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获取SqlServer中表结构
运行效果SELECT syscolumns.name,systypes.name,syscolumns.isnullable, syscolumns.length FROM syscolumns, systypes WHERE syscolumns.xusertype = systypes.xusertype AND syscolumns.id = object_id ( ' 你的表名 ' )  2.如果还想要获取字段的描述信息则 --获取SqlServer中表结构 主键，及描述 declare @table_name as varchar(max) set @table_name = '你的表名' select sys.columns.name, sys.types.name, sys.columns.max_length, sys.columns.is_nullable, (select count(*) from sys.identity_columns where sys.identity_columns.object_id = sys.columns.object_id and sys.columns.column_id = sys.identity_columns.column_id) as is_identity , (select value from sys.extended_properties where sys.extended_properties.major_id = sys.columns.object_id and sys.extended_properties.minor_id = sys.columns.column_id) as description from sys.columns, sys.tables, sys.types where sys.columns.object_id = sys.tables.object_id and sys.columns.system_type_id=sys.types.system_type_id and sys.tables.name=@table_name order by sys.columns.column_id 运行效果  3.单独查询表的递增字段
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单独查询表递增字段
运行效果select [ name ] from syscolumns where id = object_id (N ' 你的表名 ' ) and COLUMNPROPERTY (id,name, ' IsIdentity ' ) = 1  4.获取表的主外键
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获取表主外键约束
运行效果exec sp_helpconstraint ' 你的表名 ' ; 
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