文章目录
sql
-- 查看所有的数据库
select name from sys.databases order by name;
-- 查看所有的表
use [你的数据库名];
-- select * from sys.objects order by type;
-- select * from sys.objects where type = 'u';
-- select object_id,name from sys.objects where type = 'u';
select name 表名 from sys.objects where type = 'u';
-- 查看表描述
SELECT t.name 表名,prop.value 描述
FROM sys.tables t
LEFT JOIN sys.extended_properties prop
ON prop.major_id=t.object_id AND prop.minor_id = 0 and prop.class = 1
ORDER BY t.name;
-- 查看表的信息
use [你的数据库名];
select
col. name as ColumnName,
col.max_length as DataLength,
col.is_nullable as IsNullable,
t. name as DataType,
ep.value as Description,
(
select top 1 ind.is_primary_key from sys.index_columns ic
left join sys.indexes ind
on ic.object_id=ind.object_id
and ic.index_id=ind.index_id
and ind. name like 'PK_%'
where ic.object_id=obj.object_id
and ic.column_id=col.column_id
) as IsPrimaryKey
from sys.objects obj
inner join sys.columns col
on obj.object_id=col.object_id
left join sys.types t
on t.user_type_id=col.user_type_id
left join sys.extended_properties ep
on ep.major_id=obj.object_id
and ep.minor_id=col.column_id
and ep. name = 'MS_Description'
where obj. name ='[你的表名]';
参考这里:SqlServer 之快速查看表结构 (表描述及字段说明).
查看SQL Server的表字段类型、长度、描述以及是否可为null.