每次我尝试对其进行测试时,Dreamweaver 中的以下记录集都会引发 1052 模棱两可的错误。我知道它与添加日期有关,但不知道如何解决它。
SELECT commentID, commentTitle, commentContent, topicTable.topicTitle, DAYNAME(dateADDED) as day, MONTHNAME(dateADDED) as month,
DAY(dateADDED) as date, YEAR(dateADDED) as year
FROM commentTable, topicTable
WHERE commentID = colname AND topicTable.topidID = commentTable.topicID
这是桌子的布局,
CREATE TABLE userTable
(
userID VARCHAR(15) NOT NULL,
screenName VARCHAR(15) NOT NULL UNIQUE,
userPasswd CHAR(40) NOT NULL,
firstName VARCHAR(15) NOT NULL,
lastName VARCHAR(25) NOT NULL,
dateJoined TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
lastlogin DATETIME,
PRIMARY KEY(userID)
)
;
CREATE TABLE categoryTable
(
categoryID MEDIUMINT AUTO_INCREMENT NOT NULL,
categoryName VARCHAR(30) NOT NULL,
categoryDescription VARCHAR(200) NOT NULL,
PRIMARY KEY (categoryID)
)
;
CREATE TABLE topicTable
(
topicID MEDIUMINT AUTO_INCREMENT NOT NULL,
topicTitle VARCHAR(30) NOT NULL,
userID VARCHAR(15) NOT NULL,
dateAdded TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
categoryID MEDIUMINT NOT NULL,
PRIMARY KEY (topicID)
)
;
CREATE TABLE commentTable
(
commentID MEDIUMINT AUTO_INCREMENT NOT NULL,
commentTitle VARCHAR(30) NOT NULL,
commentContent TEXT NOT NULL,
userID VARCHAR(15) NOT NULL,
dateAdded TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
topicID INT NOT NULL,
PRIMARY KEY (commentID)
)
;