在SqlServer2005环境下查看当前数据库及表、字段等定义信息的sql

select table_name= ( case when t_c.column_id=1 then t_o.name else '' end ),column_id=t_c.column_id,column_name=t_c.name,type=t.name,max_length=t_c.max_length,precision=isnull(t_c.precision,0),scale=isnull(t_c.scale,is_identity=case when t_c.is_identity=1 then '√' else '' end,is_primary= ( case when exists ( select 1 from sys.indexes i,sys.index_columns ic,sys.objects o where o.type='PK' and o.name=i.name and i.index_id=ic.index_id and i.object_id=ic.object_id and ic.column_id=t_c.column_id and o.parent_object_id=t_c.object_id ) then '√' else '' end ),is_nullable=case when t_c.is_nullable=1 then '√' else '' end,default_value=isnull(c.definition,''),description=isnull(e.value,fk_column_name=isnull(f_c.name,fk_table_name=isnull(f_o.name,'') from sys.columns t_c inner join sys.objects t_o on t_c.object_id=t_o.object_id left join sys.types t on t.system_type_id=t_c.system_type_id and t.user_type_id=t_c.user_type_id left join sys.default_constraints c on c.object_id=t_c.default_object_id and c.parent_object_id=t_c.object_id and c.parent_column_id=t_c.column_id left join sys.extended_properties e on e.major_id=t_c.object_id and e.minor_id=t_c.column_id left join ( select parent_object_id,referenced_object_id,column_id=min(key_index_id) from sys.foreign_keys group by parent_object_id,referenced_object_id )f on f.parent_object_id=t_c.object_id and f.column_id=t_c.column_id left join sys.columns f_c on f_c.object_id=f.referenced_object_id and f_c.column_id=f.column_id left join sys.objects f_o on f_o.object_id=f.referenced_object_id where t_o.type='U' and t_o.name<>'sysdiagrams' order by t_o.name,t_c.column_id

（编辑：李大同）

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