下面的查询将提供类似于python、Pandas库中的info()函数的输出。

USE [Database_Name]

IF OBJECT_ID('tempdo.dob.#primary_key', 'U') IS NOT NULL DROP TABLE #primary_key

SELECT 
CONS_T.TABLE_CATALOG,
CONS_T.TABLE_SCHEMA,
CONS_T.TABLE_NAME,
CONS_C.COLUMN_NAME,
CONS_T.CONSTRAINT_TYPE,
CONS_T.CONSTRAINT_NAME
INTO  #primary_key
FROM
INFORMATION_SCHEMA.TABLE_CONSTRAINTS AS CONS_T 
JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CONS_C ON CONS_C.CONSTRAINT_NAME= CONS_T.CONSTRAINT_NAME


SELECT
SMA.name AS [Schema Name],
ST.name AS [Table Name],
SC.column_id AS [Column Order],
SC.name AS [Column Name],
PKT.CONSTRAINT_TYPE, 
PKT.CONSTRAINT_NAME, 
SC.system_type_id,
STP.name AS [Data Type],
SC.max_length,
SC.precision, 
SC.scale, 
SC.is_nullable, 
SC.is_masked
FROM sys.tables  AS ST
JOIN sys.schemas AS SMA ON SMA.schema_id = ST.schema_id
JOIN sys.columns AS SC ON SC.object_id = ST.object_id 
JOIN sys.types AS STP ON STP.system_type_id = SC.system_type_id
LEFT JOIN #primary_key AS PKT ON PKT.TABLE_SCHEMA = SMA.name
                                 AND PKT.TABLE_NAME = ST.name
                                 AND PKT.COLUMN_NAME = SC.name
ORDER BY ST.name ASC, SMA.name ASC

除了上述问题，如果我们在DB中有像db_name.dbo这样的表。Table_name，我们可以使用以下步骤

连接DB 使用db_name; 使用EXEC sp_help，不要忘记将表名设置为'dbo。表名'如果你有dbo作为schema。 Exec sp_help 'dbo.table_name'

这应该有用!

有几个方法可以获取一个表的元数据:

EXEC sp_help tablename

将返回几个结果集，描述表、它的列和约束。

INFORMATION_SCHEMA视图将为您提供所需的信息，但不幸的是，您必须手动查询这些视图并连接它们。

选择表格，按Alt+F1，

它将显示关于表的所有信息，如列名，数据类型，键等。

SELECT C.COLUMN_NAME, C.IS_NULLABLE, C.DATA_TYPE, TC.CONSTRAINT_TYPE, C.COLUMN_DEFAULT
    FROM INFORMATION_SCHEMA.COLUMNS AS C
    FULL JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE AS CC ON C.COLUMN_NAME = CC.COLUMN_NAME 
    FULL JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS AS TC ON CC.CONSTRAINT_NAME = TC.CONSTRAINT_NAME
WHERE C.TABLE_NAME = '<Table Name>';

样例输出

use

SELECT COL_LENGTH('tablename', 'colname')

其他的解决方法对我都不起作用。