diff --git "a/54 \345\217\266\345\255\220\350\261\252/9.8\344\275\234\344\270\232 .md" "b/54 \345\217\266\345\255\220\350\261\252/9.8\344\275\234\344\270\232 .md"
new file mode 100644
index 0000000000000000000000000000000000000000..51f084d1cbad498320fc82e4ee47afb1cb11da68
--- /dev/null
+++ "b/54 \345\217\266\345\255\220\350\261\252/9.8\344\275\234\344\270\232 .md"	
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+```mysql
+/*==============================================================*/
+/* DBMS name:      MySQL 5.0                                    */
+/* Created on:     2023/9/11 13:47:42                           */
+/*==============================================================*/
+
+
+drop table if exists chubanshe;
+
+drop table if exists guanliyuan;
+
+drop table if exists jieyuebiao;
+
+drop table if exists tushufenlei;
+
+drop table if exists tushuguan;
+
+drop table if exists xuesheng;
+
+/*==============================================================*/
+/* Table: chubanshe                                             */
+/*==============================================================*/
+create table chubanshe
+(
+   cbs_id               int not null,
+   ts_id                int,
+   cbs_name             varchar(20) not null,
+   cbs_address          varchar(50) not null,
+   cbs_emal             varchar(20) not null,
+   primary key (cbs_id)
+);
+
+/*==============================================================*/
+/* Table: guanliyuan                                            */
+/*==============================================================*/
+create table guanliyuan
+(
+   gly_id               int not null,
+   gly_name             varchar(20) not null,
+   gly_sex              varchar(20) not null,
+   primary key (gly_id)
+);
+
+/*==============================================================*/
+/* Table: jieyuebiao                                            */
+/*==============================================================*/
+create table jieyuebiao
+(
+   xs_id                int not null,
+   ts_id                int not null,
+   jy_time              datetime not null,
+   gh_time              datetime not null,
+   primary key (xs_id, ts_id)
+);
+
+/*==============================================================*/
+/* Table: tushufenlei                                           */
+/*==============================================================*/
+create table tushufenlei
+(
+   ts_id                int not null,
+   tsg_id               int,
+   ts_name              varchar(20) not null,
+   primary key (ts_id)
+);
+
+/*==============================================================*/
+/* Table: tushuguan                                             */
+/*==============================================================*/
+create table tushuguan
+(
+   tsg_id               int not null,
+   gly_id               int,
+   tsg_name             varchar(20) not null,
+   primary key (tsg_id)
+);
+
+/*==============================================================*/
+/* Table: xuesheng                                              */
+/*==============================================================*/
+create table xuesheng
+(
+   xs_id                int not null,
+   xs_name              varchar(20) not null,
+   xs_age               int not null,
+   xs_class             varchar(20) not null,
+   xs_sex               varchar(10) not null,
+   primary key (xs_id)
+);
+
+alter table chubanshe add constraint FK_Relationship_4 foreign key (ts_id)
+      references tushufenlei (ts_id) on delete restrict on update restrict;
+
+alter table jieyuebiao add constraint FK_Relationship_3 foreign key (xs_id)
+      references xuesheng (xs_id) on delete restrict on update restrict;
+
+alter table jieyuebiao add constraint FK_Relationship_5 foreign key (ts_id)
+      references tushufenlei (ts_id) on delete restrict on update restrict;
+
+alter table tushufenlei add constraint FK_Relationship_2 foreign key (tsg_id)
+      references tushuguan (tsg_id) on delete restrict on update restrict;
+
+alter table tushuguan add constraint FK_Relationship_1 foreign key (gly_id)
+      references guanliyuan (gly_id) on delete restrict on update restrict;
+
+
+```
+
diff --git "a/54 \345\217\266\345\255\220\350\261\252/\347\254\254\345\233\233\345\244\251\347\254\224\350\256\260.md" "b/54 \345\217\266\345\255\220\350\261\252/\347\254\254\345\233\233\345\244\251\347\254\224\350\256\260.md"
new file mode 100644
index 0000000000000000000000000000000000000000..49c2e3cc961b7855d16631cbfd56a45b5427bcfe
--- /dev/null
+++ "b/54 \345\217\266\345\255\220\350\261\252/\347\254\254\345\233\233\345\244\251\347\254\224\350\256\260.md"	
@@ -0,0 +1,11 @@
+
+
+# Power Designer：
+
+第一步：创建概念模型（类似ER图）CDM
+
+第二步：转换成逻辑模型 LDM
+
+第三步：转换成物理模型 PDM
+
+第四步：生成 DDL
\ No newline at end of file