尝试更改表列名 mysql 时出现语法错误

Question

I am working on a homework assignment. my instructions are this:

In the MATCHES table, change the column name MATCHNO to MATCH.

my syntax i wrote will be below, the problem I am having is with the word "match" its giving me a syntax error of unexpected syntax error for it. I am assuming that match is a keyword of some sort but after googling I'm not sure exactly.

the database I am using is the popular "tennis" one for teachings.

here is my code:

sql

ALTER TABLE MATCHES
CHANGE MATCHNO MATCH INT;

what can I do to fix this? If i change the name of "match" to something else it works but my instructions say to use "match"... is this possible?

Answer 1

The problem is that your query contains MySQL keywords ( MATCH , cf. https://dev.mysql.com/doc/refman/5.5/en/keywords.html ).

Put the table and column names in backticks (`) in order to prevent MySQL from interpreting those as keywords.

ALTER TABLE `MATCHES` CHANGE `MATCHNO` `MATCH` INT;