问题
问答题
工作场所健康教育
答案
参考答案：是指通过提供知识、技能、服务，促使职业人群自觉地采纳有益于健康的行为和生活方式。
搜题请搜索小程序“爱下问搜题”
工作场所健康教育
参考答案：是指通过提供知识、技能、服务，促使职业人群自觉地采纳有益于健康的行为和生活方式。
以下是INVENTORY(库存)表中每一列的详细定义：
| Column Name | ID_HUMBER | DESCRIPTION | MANUFACTURER_ID | QUANTITY | PRICE | ORDER_DATE |
| Key Type | PK | FK | ||||
| Nulls/Unique | HN, U | NN | NN | |||
| FK Table | MANUFACTURER | |||||
| FK Column | ID_NUMBER | |||||
| Datatype | NUM | VARCHAR2 | VARCHAR2 | NUM | HUM | DATE |
| Length | 9 | 25 | 26 | 9 | 8, 2 |
A．DELETE FROM
inventory
WHERE
order_date＞’25-JUL-1997’
AND
id_number=&id_number;
B．DROP FROM
inventory
WHERE
order_date＞TO_DATE(’25-JUL-97’)
AND
id_number=&id_number;
C．DELETE FROM
inventory
WHERE
order_date=＞’25-JUL-97’
AND
id_number=’&id_number’;
D．DELETE FROM
inventory
WHERE
order_date＞(’25-JUL-1997’)
OR
id_number=&id_number;
E．DELETE FROM
inventory
WHERE
order_date＞TO_DATE(’July 25, 1997’, ’DD.MM.YYYY’)
AND
id_number=&id_number;