想要查看SQL字段属性，应该如何实现呢？下面为您介绍的就是查询SQL字段属性的sql语句写法，希望对您学习SQL字段属性方面有所启迪。
SELECT sysobjects.name AS tableName, syscolumns.name AS field, properties.[value] AS fieldRemark, systypes.name AS type, syscolumns.length, ISNULL(COLUMNPROPERTY(syscolumns.id, syscolumns.name, 'Scale'), 0) AS [decimal], syscolumns.isnullable AS isnulls, CASE WHEN syscomments.text IS NULL THEN '' ELSE syscomments.text END AS [Default], CASE WHEN COLUMNPROPERTY(syscolumns.id, syscolumns.name, 'IsIdentity') = 1 THEN 'Y' ELSE 'N' END AS [id], 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 = syscolumns.id AND colid = syscolumns.colid))) THEN 'Y' ELSE 'N' END AS PK FROM syscolumns INNER JOIN sysobjects ON sysobjects.id = syscolumns.id INNER JOIN systypes ON syscolumns.xtype = systypes.xtype LEFT OUTER JOIN sysproperties properties ON syscolumns.id = properties.id AND syscolumns.colid = properties.smallid LEFT OUTER JOIN sysproperties ON sysobjects.id = sysproperties.id AND sysproperties.smallid = 0 LEFT OUTER JOIN syscomments ON syscolumns.cdefault = syscomments.id WHERE (sysobjects.xtype = 'U') and systypes.name<>'sysname' order by sysobjects.name 使用：把这段代码拷贝到查询分析器内选中相关查询的数据库名即可。 //符合我自己使用的查询数据库字典方法：SQL server 200 SELECT sysobjects.name AS 表名,--获取数据库表名 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 = syscolumns.id AND colid = syscolumns.colid))) THEN 'K' ELSE '' END AS PK,--是否是主键 syscolumns.name AS 字段名, properties.[value] AS 字段描述, systypes.name AS 数据类型, syscolumns.length AS 长度, CASE syscolumns.isnullable WHEN '1' THEN '是' ELSE '否'END AS 允许为空, CASE WHEN syscomments.text IS NULL THEN '' ELSE syscomments.text END AS 默认值 FROM syscolumns INNER JOIN sysobjects ON sysobjects.id = syscolumns.id INNER JOIN systypes ON syscolumns.xtype = systypes.xtype LEFT OUTER JOIN sysproperties properties ON syscolumns.id = properties.id AND syscolumns.colid = properties.smallid LEFT OUTER JOIN sysproperties ON sysobjects.id = sysproperties.id AND sysproperties.smallid = 0 LEFT OUTER JOIN syscomments ON syscolumns.cdefault = syscomments.id WHERE (sysobjects.xtype = 'U') and systypes.name<>'sysname' order by sysobjects.name desc