需要关于赋值问题的帮助！需要使用更新和子查询来将正确的日子添加到与其他表中的正确列和行相匹配的不同行中。尝试使用DVD更新条目的到期日（7天+ checkedOut日期）。到目前为止，我尝试使用下面的代码 UPDATE LOAN
SET (SELECT DUEDATE
FROM Media
JOIN Item USING (MediaID)
JOIN Invento
SELECT program.prg_field AS "College"
, program.prg_name AS "Major"
, professor.pr_id AS "Professor ID"
, professor.pr_name AS "Advisor"
FROM professor
INNER JOIN program ON p
“显示与每个本科相关专业的号码，只包括具有专业2和10之间的节目” SELECT prg_field AS "College", prg_name AS "Number of Majors"
FROM program
WHERE prg_type = 'U'
我的“专业学生数“专栏作为主要名称出现，我如何将其更改为与大学的prg_field专栏相关的值？
http://i.stack.imgur.com/t2tMi.jpg SELECT T.USER_ID
FROM USER_OTHER_PRIVILEGES T
WHERE T.UOPM_ID = 17
AND T.PRIV_ID IN (719) ; 67 rows selected
INSERT INTO USER_OTHER_PRIVILEGES (
ID,
我想更新表，其中我输入的日期是字符串类型 SELECT FromDate FROM MyTbl where NUM=3;
*output:*
FromDate
-------------------------
24-APR-16
UPDATE MyTbl SET FLAG='Y' WHERE FromDate=to_date(2016-04-24 00:00
SELECT professor.pr_name, professor.pr_college, professor.pr_salary
FROM professor
WHERE professor.pr_salary NOT IN ('Education') > professor.pr_salary IN ('Education')
ORDER BY professor.pr_salary
当前正在研究篮球性能数据库。我遇到的问题是存储比赛的胜者。 对照表目前像这样： CREATE TABLE Matches(
M_ID int CONSTRAINT pk_Match PRIMARY KEY,
M_Date Date NOT NULL,
M_Location varchar(20),
M_HomeTeam int NOT NULL,
M_AwayTeam int NOT NU