Wednesday, 16 November 2016
mysql - SQL query on PHPMyAdmin to insert data not working
Answer
Answer
Following is my SQL query:
Attempt 1
INSERT INTO `product`(`productid`, `title`, `category`, `description`)
VALUES (NULL,`iMac`,`Desktop`,`With its enhanced, big and beautiful display, the new Apple iMac M-D093-B/A 21.5 Desktop Computer renders your movies, photos, web pages and other graphics in truly jaw-dropping detail.`)
Attempt 2
INSERT INTO `product`(`productid`, `title`, `category`, `description`)
VALUES(` `,`iMac`,`Desktop`,`With its enhanced, big and beautiful display, the new Apple iMac M-D093-B/A 21.5 Desktop Computer renders your movies, photos, web pages and other graphics in truly jaw-dropping detail.`)
I keep getting an error of : MySQL returned an empty result set (i.e. zero rows). ( Query took 0.0003 sec )
I don't understand what am i doing wrong. Here is my column name list
1 productid int(11)
2 title varchar(100)
3 category varchar(100)
4 description varchar(2000)
table name:product
Answer
For the values, use the ' character, not this one: ``` (sorry, I'll have to find out how to put a single backtick into an inline code block in Markdown...)
INSERT INTO `product`(`productid`, `title`, `category`, `description`)
VALUES (NULL,'iMac','Desktop','With its enhanced, big and beautiful display, the new Apple iMac M-D093-B/A 21.5 Desktop Computer renders your movies, photos, web pages and other graphics in truly jaw-dropping detail.')
And this should work... Here is the SQLfiddle for it.
EDIT
This is the solution as per zour table definition:
INSERT INTO `product`(`title`, `category`, `description`)
VALUES ('iMac','Desktop','With its enhanced, big and beautiful display, the new Apple iMac M-D093-B/A 21.5 Desktop Computer renders your movies, photos, web pages and other graphics in truly jaw-dropping detail.')
You had two things you forgot to mention:
* productid is a PRIMARY KEY (and hence, automatically NOT NULL) column -- any inserts with a NULL in that column will fail
* productid is an AUTO_INCREMENT column -- you don't even have to include it in the INSERT statement, it will get filled with an unique value each time you insert a row
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