mysql - 找不到 MySQL 语法错误

Question

USE waterloo;

DROP TABLE IF EXISTS waterloo;
CREATE TABLE waterloo
(
id              int unsigned NOT NULL auto_increment,   # Unique ID for the record
building        varchar(255) NOT NULL,                  # Name of building
floor           int unsigned NOT NULL,                  # Floor of building
gender          varchar(255) NOT NULL,                  # Gender of bathroom
location        int unsigned NOT NULL,                  # Convenience of location of     bathroom
cleanliness     int unsigned NOT NULL,                  # Cleanliness of bathroom
stalls          int unsigned NOT NULL,                  # Number of stalls
noise           int unsigned NOT NULL,                  # Ambient noise
lines           int unsigned NOT NULL,                  # Length of lines at peak hours
graffiti        int unsigned NOT NULL,                  # Amount of graffiti on the walls
PRIMARY KEY     (id)
);

我收到以下错误：

ERROR 1064 (42000)：您的 SQL 语法有错误；检查与您的 MySQL 服务器版本相对应的手册，以在第 11 行的 'lines int unsigned NOT NULL, graffiti int unsigned NOT NULL )' 附近使用正确的语法

Answer 1

LINES是 MySQL 中的保留字。不过，您仍然可以将其用作列名。只需将其包裹在 backtics 中

`lines`

Answer 2

Lines 是 MySQL 中的保留字——在它周围添加刻度，它应该可以工作。

http://dev.mysql.com/doc/refman/5.5/en/reserved-words.html

CREATE TABLE waterloo
(
id              int unsigned NOT NULL auto_increment,   # Unique ID for the record
building        varchar(255) NOT NULL,                  # Name of building
floor           int unsigned NOT NULL,                  # Floor of building
gender          varchar(255) NOT NULL,                  # Gender of bathroom
location        int unsigned NOT NULL,                  # Convenience of location of     bathroom
cleanliness     int unsigned NOT NULL,                  # Cleanliness of bathroom
stalls          int unsigned NOT NULL,                  # Number of stalls
noise           int unsigned NOT NULL,                  # Ambient noise
`lines`           int unsigned NOT NULL,                  # Length of lines at peak hours
graffiti        int unsigned NOT NULL,                  # Amount of graffiti on the walls
PRIMARY KEY     (id)
);

希望有帮助。