sqlserver 递归删除组织结构树

浏览数：34 / 时间：2015年06月12日

/// <summary>
        /// 递归删除岗位节点
        /// </summary>
        /// <param name="PK_ROLE_ID"></param>
        /// <param name="isPost"></param>
        /// <returns></returns>
        public 
bool DeletePosts(int 
PK_ROLE_ID)
        {
             
            StringBuilder strSql=new 
StringBuilder();
 
 
             strSql.Append("   WITH post(PK_ROLE_ID, ROLE_FATHER, ROLE_NAME) AS ");
             strSql.Append("       (    ");
             strSql.Append("           SELECT  R.PK_ROLE_ID, R.ROLE_FATHER, R.ROLE_NAME");
             strSql.Append("           FROM [ROLE] R WHERE PK_ROLE_ID=@PK_ROLE_ID");
             strSql.Append("           UNIon ALL");
             strSql.Append("           SELECT sub.PK_ROLE_ID, sub.ROLE_FATHER, sub.ROLE_NAME");
             strSql.Append("           FROM [ROLE] sub, post super");
             strSql.Append("           WHERE sub.ROLE_FATHER = super.PK_ROLE_ID");
             strSql.Append("       )");
             strSql.Append("   delete from [ROLE] where PK_ROLE_ID in(");
             strSql.Append("   select PK_ROLE_ID from post");
             strSql.Append("   )");
 
            SqlParameter[] parameters = {
                    new 
SqlParameter("@PK_ROLE_ID", SqlDbType.Int,4)
};
            parameters[0].Value = PK_ROLE_ID;
 
            int 
rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
            if 
(rows > 0)
            {
                return 
true;
            }
            else
            {
                return 
false;
            }
        }