此查询有什么问题? SELECT F.PART_NUM, F.DESCRIPTION, S.PART_NUM, S.DESCRIPTION, F.CLASS
FROM PART F, PART S
WHERE F.CLASS = S.CLASS AND F.PART_NUM < customer_num =" ORDERS.CUSTOMER_NUM"
customer_name =" 'Jo
的Oracle SQL:如何找到并删除重复 我只有只读访问Oracle(仅可以使用SELECT命令)。 逻辑:两个用户 'A' & 'B' 由具有相同公司名称&名字 列提取: ID of A
ID of B
Company Name of A
Company Name of B
First Name of A
First Name of B
我使用以下查询: select a.id,
我是Oracle新手,遇到此问题。 我创造了这样一个过程: CREATE OR REPLACE PROCEDURE getArt
as
begin
select ar.artTitle, ar.artContent, ar.DateCreated, ar.artCategory, ac.accName
from hng_art ar
join HNG_ACC
[编辑]我被告知查询中有一个子查询,所以这里是我想出了而现在给努力。[NEW CODE] SELECT P.prodid, P.prodname, SUM(O.qtysold) AS "TOTAL SALES"
FROM ORDERLINE O
INNER JOIN PRODUCT P
ON O.prodid = P.prodid
INNER JOIN ALLOCATION A
ON P
所以我想创建一个改变记录时间戳的触发,我有这个迄今为止 create or replace TRIGGER job_date_set
AFTER INSERT OR UPDATE OF start_date, closing_date ON jobs
FOR EACH ROW
BEGIN
IF UPDATING THEN
CASE