http://wenku.baidu.com/link?url=mnjuPMo9qJvzluCHEvqVDawpuloKeGla05a2L3UtqzD_bF1VJMb7jHY4SBhuYH3-K_xFU4n99S9Nd7jSoHx2w3AjQYogFLO6AKie_p7vOKy
http://www.lushuibo.com/post/sql2005_link.html
http://www.cnblogs.com/tough/archive/2011/11/18/2254076.html