Question

I wrote the following query for mySQL :

mysql> Create table R_Matrix 
       ( 
         image_name VARCHAR(25) NOT NULL REFERENCES Images(image_name), 
         Row INT, 
         Column INT, 
         Data INT, 
         PRIMARY KEY(image_name) 
       ); 

Where Images is a table in the same database and image_name is a column in it;

However I got the following error :

ERROR 1064 (42000): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near ‘Column INT, Data INT, PRIMARY KEY(image_name) )’
at line 1

I cannot find anything wrong with the query. What am I doing wrong ?

Answer 1

COLUMN is a reserved keyword. It must be escape using backtick,

Create table R_Matrix 
( 
    image_name VARCHAR(25) NOT NULL REFERENCES Images(image_name), 
    Row INT, 
    `Column` INT, 
    Data INT, 
    PRIMARY KEY(image_name) 
);

• MySQL Reserved Keywords