2026-03-12 20:23:15

2026-03-12 21:23:47 +01:00
parent eab4b36eca
commit 93039b8489
3332 changed files with 699614 additions and 0 deletions
--- a/my/random_data/scratch_01.sql
+++ b/my/random_data/scratch_01.sql
@@ -0,0 +1,97 @@
+drop table R1 purge;
+create table R1 as
+select 
+    rownum ID,
+    round(dbms_random.value(1,100000)) N1,
+    round(dbms_random.value(1,1000)) N2,
+    case 
+        when mod(rownum,10)=0 then 'BINGO'
+    else 
+        dbms_random.string('X',5)
+    end S1,
+    TO_DATE(
+              TRUNC(
+                   dbms_random.value(TO_CHAR(DATE '1960-01-01','J')
+                                    ,TO_CHAR(DATE '2011-12-31','J')
+                                    )
+                    ),'J'
+               ) D1,
+    'Record #'||to_char(rownum) S2
+from 
+    dual 
+connect by level<=100000;
+
+
+drop table R2 purge;
+create table R2 as
+select 
+    rownum ID,
+    dbms_random.string('X',5) S1,
+    case 
+        when mod(rownum,3)=0 then 'M3'
+    else 
+        dbms_random.string('X',5)
+    end S2,
+    round(dbms_random.value(1,100)) N1,
+    TO_DATE(
+              TRUNC(
+                   dbms_random.value(TO_CHAR(DATE '1960-01-01','J')
+                                    ,TO_CHAR(DATE '2011-12-31','J')
+                                    )
+                    ),'J'
+               ) D1
+from 
+    dual 
+connect by level<=1000;
+
+drop table R3 purge;
+create table R3 as
+select 
+    rownum ID,
+    dbms_random.string('X',5) S1,
+    case 
+        when mod(rownum,2)=0 then 'M2'
+    else 
+        dbms_random.string('X',5)
+    end S2,
+    round(dbms_random.value(1,1000)) N1
+from 
+    dual 
+connect by level<=1000;
+
+
+drop table R4 purge;
+create table R4 as
+select 
+    rownum ID,
+    dbms_random.string('X',5) S1,
+    TO_DATE(
+              TRUNC(
+                   dbms_random.value(TO_CHAR(DATE '1960-01-01','J')
+                                    ,TO_CHAR(DATE '2011-12-31','J')
+                                    )
+                    ),'J'
+               ) D1
+from 
+    dual 
+connect by level<=10000;
+
+
+
+ALTER TABLE R1 MODIFY (ID NOT NULL);
+ALTER TABLE R1 ADD CONSTRAINT R1_PK PRIMARY KEY (ID) ENABLE;
+
+ALTER TABLE R2 MODIFY (ID NOT NULL);
+ALTER TABLE R2 ADD CONSTRAINT R2_PK PRIMARY KEY (ID) ENABLE;
+
+ALTER TABLE R3 MODIFY (ID NOT NULL);
+ALTER TABLE R3 ADD CONSTRAINT R3_PK PRIMARY KEY (ID) ENABLE;
+
+ALTER TABLE R4 MODIFY (ID NOT NULL);
+ALTER TABLE R4 ADD CONSTRAINT R4_PK PRIMARY KEY (ID) ENABLE;
+
+
+ALTER TABLE R1 ADD CONSTRAINT R1_FK1 FOREIGN KEY(N2) REFERENCES R2(ID) ENABLE;
+ALTER TABLE R3 ADD CONSTRAINT R3_FK1 FOREIGN KEY(N1) REFERENCES R2(ID) ENABLE;
+ALTER TABLE R2 ADD CONSTRAINT R2_FK1 FOREIGN KEY(N1) REFERENCES R4(ID) ENABLE;
+