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  • SqlServer 查询表中字段的字段说明:

     1 --查询表的字段说明
     2 --use dataname -----数据库名
     3 SELECT t.[name] AS 表名,c.[name] AS 字段名,cast(ep.[value]
     4 as varchar(100)) AS [字段说明]
     5 FROM sys.tables AS t
     6 INNER JOIN sys.columns
     7 AS c ON t.object_id = c.object_id
     8 LEFT JOIN sys.extended_properties AS ep
     9 ON ep.major_id = c.object_id AND ep.minor_id = c.column_id WHERE ep.class =1
    10 AND t.name='CN_PG'--------表名
    11 -------------------------------------
    12 --快速查看表结构(比较全面的)
    13 SELECT CASE WHEN col.colorder = 1 THEN obj.name
    14 ELSE ''
    15 END AS 表名,
    16 col.colorder AS 序号 ,
    17 col.name AS 列名 ,
    18 ISNULL(ep.[value], '') AS 列说明 ,
    19 t.name AS 数据类型 ,
    20 col.length AS 长度 ,
    21 ISNULL(COLUMNPROPERTY(col.id, col.name, 'Scale'), 0) AS 小数位数 ,
    22 CASE WHEN COLUMNPROPERTY(col.id, col.name, 'IsIdentity') = 1 THEN ''
    23 ELSE ''
    24 END AS 标识 ,
    25 CASE WHEN EXISTS ( SELECT 1
    26 FROM dbo.sysindexes si
    27 INNER JOIN dbo.sysindexkeys sik ON si.id = sik.id
    28 AND si.indid = sik.indid
    29 INNER JOIN dbo.syscolumns sc ON sc.id = sik.id
    30 AND sc.colid = sik.colid
    31 INNER JOIN dbo.sysobjects so ON so.name = si.name
    32 AND so.xtype = 'PK'
    33 WHERE sc.id = col.id
    34 AND sc.colid = col.colid ) THEN ''
    35 ELSE ''
    36 END AS 主键 ,
    37 CASE WHEN col.isnullable = 1 THEN ''
    38 ELSE ''
    39 END AS 允许空 ,
    40 ISNULL(comm.text, '') AS 默认值
    41 FROM dbo.syscolumns col
    42 LEFT JOIN dbo.systypes t ON col.xtype = t.xusertype
    43 inner JOIN dbo.sysobjects obj ON col.id = obj.id
    44 AND obj.xtype = 'U'
    45 AND obj.status >= 0
    46 LEFT JOIN dbo.syscomments comm ON col.cdefault = comm.id
    47 LEFT JOIN sys.extended_properties ep ON col.id = ep.major_id
    48 AND col.colid = ep.minor_id
    49 AND ep.name = 'MS_Description'
    50 LEFT JOIN sys.extended_properties epTwo ON obj.id = epTwo.major_id
    51 AND epTwo.minor_id = 0
    52 AND epTwo.name = 'MS_Description'
    53 WHERE obj.name = 'CN_PG'--表名
    54 ORDER BY col.colorder ;

    引用来源:https://www.cnblogs.com/accumulater/p/6155241.html

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  • 原文地址:https://www.cnblogs.com/williamton/p/14282765.html
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