生成測試數據

我想爲這些Oracle表創建的測試數據：生成測試數據

CREATE TABLE AGENT_HISTORY(
    EVENT_ID INTEGER NOT NULL, 
    AGENTID INTEGER NOT NULL, 
    EVENT_DATE DATE NOT NULL 
) 
/

CREATE TABLE CPU_HISTORY(
    CPU_HISTORY_ID INTEGER NOT NULL, 
    EVENT_ID INTEGER NOT NULL, 
    CPU_NAME VARCHAR2(50) NOT NULL, 
    CPU_VALUE NUMBER NOT NULL 
) 
/

你能幫我爲100行生成隨機值創建過程？

我想這

BEGIN 

    FOR loop_counter IN 1..1000 
    LOOP 
    INSERT INTO AGENT_HISTORY (EVENT_ID, AGENTID, EVENT_DATE) 
    VALUES (loop_counter, 22, SYSDATE); 
    END LOOP; 

    COMMIT; 

    FOR loop_counter IN 1..1000 
    LOOP 
    INSERT INTO CPU_HISTORY_ID (CPU_HISTORY_ID, EVENT_ID, CPU_NAME, CPU_VALUE) 
    VALUES (loop_counter, loop_counter, 'cpu1', dbms_random.value(1,100)); 
    END LOOP; 

    COMMIT; 
END;

但我得到這些錯誤：

Error report - 
ORA-00001: unique constraint (ADMIN.KEY8) violated 
ORA-06512: at line 5 
00001. 00000 - "unique constraint (%s.%s) violated" 
*Cause: An UPDATE or INSERT statement attempted to insert a duplicate key. 
      For Trusted Oracle configured in DBMS MAC mode, you may see 
      this message if a duplicate entry exists at a different level. 
*Action: Either remove the unique restriction or do not insert the key. 

Error report - 
ORA-06550: line 5, column 16: 
PL/SQL: ORA-00942: table or view does not exist 
ORA-06550: line 5, column 4: 
PL/SQL: SQL Statement ignored 
06550. 00000 - "line %s, column %s:\n%s" 
*Cause: Usually a PL/SQL compilation error. 
*Action:

來源

2015-11-10 Peter Penzov

閉幕，因爲你不喜歡有人想要代碼的事實不是一個理由關閉。 –

'INSERT INTO CPU_HISTORY_ID'刪除'_ID'以使用表名'CPU_HISTORY'。 –

希望這有助於（見下文工作SQLfiddle）

INSERT INTO AGENT_HISTORY (EVENT_ID,AGENTID,EVENT_DATE) 
select 
trunc(dbms_random.value(1,100)) EVENT_ID , 
trunc(dbms_random.value(1,100)) AGENTID , 
TO_DATE(
      TRUNC(
       DBMS_RANDOM.VALUE(TO_CHAR(DATE '2000-01-01','J') 
           ,TO_CHAR(DATE '2015-11-10','J') 
           ) 
       ),'J' 
      ) EVENT_DATE from dual 
connect by level <=10; 

select * from AGENT_HISTORY

工作SQL小提琴：http://sqlfiddle.com/#!4/2bcb6/7

來源

2015-11-10 10:54:24 user2314737

你確定嗎？當我用sqldeveloper –

@ peter-penzov瀏覽表格時，我不能列出任何數據。一行代碼（'insert ...'）丟失。現在我還改進了'dbms_random.value'並引入了更好的隨機日期。 – user2314737

你可以請我看看第二張表CPU_HISTORY我需要執行什麼SQL查詢？ –

按順序生成PK（使用rownum），如果您想要隨機順序，請按順序添加順序。這可以避免重複鍵。

select 
    rownum CPU_HISTORY_ID, 
    trunc(dbms_random.value(1,50)) EVENT_ID, 
    'CPU NO '||trunc(dbms_random.value(1,10)) CPU_NAME, 
    dbms_random.value(1,5) CPU_VALUE 
from dual connect by level <= 100 
order by dbms_random.value() 
;

如果外鍵很簡單，例如，如上所述，從1到50的任何數字都使用隨機數生成器。如果您有一組預定義的可能值，請使用查找表。在下面的示例中，表EVENT將整數1..3映射到可能的EVENT_ID以完整填充FK約束。對您的事件表使用類似的方法。

with event as (
    select 1 rn, 1828 EVENT_ID from dual union all 
    select 2 rn, 2818 EVENT_ID from dual union all 
    select 3 rn, 9898 EVENT_ID from dual), 
gendata as ( 
select 
    rownum CPU_HISTORY_ID,round(dbms_random.value(1,3)) rn, 
    'CPU NO '||trunc(dbms_random.value(1,10)) CPU_NAME, 
    dbms_random.value(1,5) CPU_VALUE 
from dual connect by level <= 100 
) 
select CPU_HISTORY_ID, 
    (select EVENT_ID from event where rn = gendata.rn) EVENT_ID, 
    CPU_NAME, CPU_VALUE 
from gendata 
order by dbms_random.value() 
;

來源

2015-11-10 14:43:32

生成測試數據

回答

相關問題