SQL选择查询不返回某些列

Question

I am developing a web app using gwt. As part of the app I have created table that has 4 columsn: id, name, code, file. From some reason when I run the command

"SELECT * FROM myTABLE WHERE id = 3"

MAMP returns a result but when I run

"SELECT * FROM myTABLE WHERE code = 'A101'"

MAMP does not return anything and instead just shows a spinning loading icon. The same command works for the name column but does not work for the file column

Edit:

I added an index for code

Answer 1

Code is a reserved word in MySQL. You should use back ticks around it.

"SELECT * FROM myTABLE WHERE `code` = 'A101'"