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[英]how to increment the datetime value with the increment value as 30 minutes in oracle?
[英]how to increment hex value in oracle
我試圖增加ID表中定義為raw的oracle表中的一列:
ID VALUE
----------
1 A14
2 B13
3 C15
4 D16
我需要
ID VALUE
----------
1 A24
2 B23
3 C25
4 D26
oracle中有什么函數如何遞增? 謝謝
將TO_NUMBER
和TO_CHAR
與掩碼X
為十六進制數字:
Oracle 11g R2架構設置 :
CREATE TABLE TABLE_NAME (
ID INTEGER,
VALUE VARCHAR2(20)
);
INSERT INTO TABLE_NAME
SELECT 1, 'A14' FROM DUAL UNION ALL
SELECT 2, 'B13' FROM DUAL UNION ALL
SELECT 3, 'C15' FROM DUAL UNION ALL
SELECT 4, 'D16' FROM DUAL UNION ALL
SELECT 5, 'FFF' FROM DUAL;
UPDATE table_name
SET value = TO_CHAR( TO_NUMBER( value, 'XXXX' ) + TO_NUMBER( '10', 'XX' ), 'FMXXXX' );
查詢1 :
SELECT * FROM table_name
結果 :
| ID | VALUE |
|----|-------|
| 1 | A24 |
| 2 | B23 |
| 3 | C25 |
| 4 | D26 |
| 5 | 100F |
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