SQL实例代码:取栏目树,过滤用户权限和无效栏目

文由网友whl供稿，特此感谢！
/**
  * Desc: 取栏目树 ,过滤用户权限和无效栏目
  * Author: WHL
  * Date: 2009-05-31 15:17
  */

 
/** 1. 取某用户有权限（np_cms_column_security表有记录且t.action_1 = ‘1′）的栏目的树 **/ 01.createorreplaceviewV_NP_CTREE_BSas 02.selectB.*from( 03.selectA.*, lag(A.column_id) over(partitionbyA.column_idorderby0 ) RK 04.  from(select/*+choose */ 05.         t.* 06.          fromnp_cms_column t 07.         wheret.is_active ='1' 08.        connectbypriort.column_id = t.parent_id 09.         startwitht.column_idin(selectt.column_id 10.                                      fromnp_cms_column_security t 11.                                     wheret.subject_id ='mazj' 12.                                          /*这里添加角色过滤*/ 13.                                       andt.action_1 ='1'))A) B 14. wherenotexists 15. (select0 16.          from(selectdistinctd.column_id 17.                  fromnp_cms_column d 18.                connectbypriord.column_id = d.parent_id 19.                 startwithd.column_idin 20.                    (selectt.column_id 21.                       fromnp_cms_column_security t 22.                      wheret.subject_id ='mazj' 23.                           /* 这里添加角色过滤*/ 24.                        andt.action_1 ='0' 25.                           /* 排除有权限树下的非授权ID,既 Action_1=0的*/ 26.                        andexists 27.                      (select0 28.                               from(selectdistinctd.column_id 29.                                       fromnp_cms_column d 30.                                     connectbypriord.column_id = 31.                                                 d.parent_id 32.                                      startwithd.column_idin 33.                                                 (selectt.column_id 34.                                                    fromnp_cms_column_security t 35.                                                   wheret.subject_id = 36.                                                         'mazj' 37.                                                        /*这里添加角色过滤*/ 38.                                                     andt.action_1 ='1')) C1 39.                              whereC1.column_id = t.column_id)) 40.                        andd.is_active ='1') C 41.         whereC.column_id = B.column_idandB.RKisnull)andB.RKisnull 42.unionall 43.selectc.*, 0 RKfromnp_cms_column cwherec.parent_id = 0;

————————————————————————
/** 2.得到栏目的虚拟父亲ID（考虑到把断层的节点接起来）**/

01.createorreplaceviewV_NP_CTREE_PAas 02.selectB.*, 03.       (caseB.column_id 04.         when1then0elsenvl(B.father, 1)end) VFA 05.  from(selectv.*, 06.               (selectvv.column_id 07.                  fromV_NP_CTREE_BS vv 08.                 wherevv.column_id = v.parent_id) FATHER 09.          fromV_NP_CTREE_BS v) B;

————————————————————————
/** 3. 取出门户需要的栏目树 **/

1.--create or replace view V_NP_CTREE_RS as 2.select 3. D.*, LPAD(' ', 2 *level- 1) || SYS_CONNECT_BY_PATH(D.COLUMN_NAME,'/') "Path" 4.  from(selectc.* 5.          fromV_NP_CTREE_PA c 6.         orderbyc.VFA, c.disorderdesc, c.column_iddesc) D 7.connectbypriorD.column_id = D.VFA 8. startwithD.column_id = 1;

复制链接发给好友 收藏本文 关闭此页

上一篇：让百万级数据瞬间导入SQL Server实验案例

下一篇：SQL Server数据库常用的T-SQL命令