sqlserver 递归删除组织结构树

2023-11-02 10:31:04
/// <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;

            }

        }
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