Question

我刚刚在tsql中创建了一个表，但现在我希望能够得到该表的定义，比如列名，无论是int还是nvarchar或者它是什么参数，是否为null等等。这是什么tsql查询？

Answer 1

您可以查询架构，如下所示：

SELECT 
   ORDINAL_POSITION,
   DATA_TYPE,
   CHARACTER_MAXIMUM_LENGTH,
   IS_NULLABLE,
   COLUMN_DEFAULT
FROM   
   INFORMATION_SCHEMA.COLUMNS 
WHERE   
   TABLE_NAME = 'Product' 
ORDER BY 
   ORDINAL_POSITION ASC;

Answer 2

SELECT 
    ColumnName  = C.Name
,   ColumnSeq   = C.column_id
,   DataType    = T.name
,   MaxLength   = C.max_length
,   Percision   = C.precision
,   Scale       = c.scale
,   IsNullable  = C.Is_nullable
,   IsIdentiy   = C.Is_identity
,   Colation    = c.collation_name
FROM sys.Columns C
JOIN sys.Types T ON T.System_Type_id = C.System_Type_id
where c.object_id = object_id('dbo.product')
order by c.column_id

查询以查找表定义

2 个答案: