求mssql和orcal两条语句 - Oracle / 高级技术

SQL code:

sql2005，sql2008

SELECT

表名=CASE WHEN a.colorder = 1 THEN d.name ELSE '' END,

表说明=CASE WHEN a.colorder = 1 THEN isnull(f.value, '') ELSE '' END ,

字段序号=a.colorder ,

字段名=a.name ,

标识=CASE WHEN COLUMNPROPERTY(a.id, a.name, 'IsIdentity') = 1 THEN '√' ELSE '' END ,

主键=CASE WHEN EXISTS (SELECT 1 from dbo.sysindexes si INNER JOIN

dbo.sysindexkeys sik ON si.id = sik.id AND si.indid = sik.indid INNER JOIN

dbo.syscolumns sc ON sc.id = sik.id AND sc.colid = sik.colid INNER JOIN

dbo.sysobjects so ON so.name = so.name AND so.xtype = 'PK'

WHERE sc.id = a.id AND sc.colid = a.colid) THEN '√' ELSE '' END ,

类型=b.name ,

长度=a.length ,

精度=COLUMNPROPERTY(a.id, a.name, 'PRECISION') ,

小数位数=ISNULL(COLUMNPROPERTY(a.id, a.name, 'Scale'), 0) ,

允许空=CASE WHEN a.isnullable = 1 THEN '√' ELSE '' END ,

默认值= ISNULL(e.text, ''),

字段说明=ISNULL(g.[value], ''),

创建时间=d.crdate,

更改时间=CASE WHEN a.colorder = 1 THEN d.refdate ELSE NULL END

from dbo.syscolumns a LEFT OUTER JOIN

dbo.systypes b ON a.xtype = b.xusertype INNER JOIN

dbo.sysobjects d ON a.id = d.id AND d.xtype = 'U' AND

d.status >= 0 LEFT OUTER JOIN

dbo.syscomments e ON a.cdefault = e.id LEFT OUTER JOIN

sys.extended_properties g ON a.id = g.major_id