-- 获取所有数据库名 
select name from master..sysdatabases where name = 'Fly'
-- 获取所有表名 
select name from Fly..sysobjects where xtype='U' order by name
  --获取字段名
SELECT COLUMN_NAME,DATA_TYPE FROM Fly.INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME= 'A'
--所有触发器
select name from sysobjects where xtype='TR' 
--所有存储过程
select name from sysobjects where xtype='P' 
 --所有视图
select name from sysobjects where xtype='V'
 --所有表
select name from sysobjects where xtype='U'

DECLARE 
     @DataBaseName nvarchar(100)
    ,@TableName nvarchar(100)
    ,@exec_Sql varchar(100)
set @DataBaseName = 'Fly'
set @TableName = 'A'
set @exec_Sql = 'SELECT COLUMN_NAME,DATA_TYPE FROM '
                + @DataBaseName 
                + '.INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME= ' 
                + '''' + @TableName +''''
exec(@exec_Sql)

本文题目：获取所有数据库名、表名、字段名
文章出自：http://njwzjz.com/article/gdeiis.html