使用SQL生成指定数据库的数据字典(MSSQL)

USE DBNAME --指定要生成数据字典的数据库

GO
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
		sysobjects
	WHERE
		xtype = 'PK'
		AND name IN (
			SELECT name FROM sysindexes WHERE indid IN (
				SELECT indid FROM sysindexkeys WHERE id = a.id AND colid = a.colid ) )
		) THEN
		'√' ELSE ''
	END,
	类型= b.name,
	占用字节数= a.length,
	长度= 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], '' )
FROM
	syscolumns a
	LEFT JOIN systypes b ON a.xtype= b.xusertype
	INNER JOIN sysobjects d ON a.id= d.id
	AND d.xtype= 'U'
	AND d.name<> 'dtproperties'
	LEFT JOIN syscomments e ON a.cdefault= e.id
	LEFT JOIN sys.extended_properties g ON a.id= g.major_id
	AND a.colid= g.minor_id
	LEFT JOIN sys.extended_properties f ON d.id= f.major_id
	AND f.minor_id = 0
--where d.name='要查询的表' --如果只查询指定表,加上此条件
ORDER BY
	a.id,
	a.colorder