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问题描述:今天使用mysql新建了一个表。在插入数据时,报了语法错误。由于使用的是 mabits 代码自动生成工具,并且自己没有改写其中的sql语句。所以确信,sql语句部分应该没有可能写错。因此马上意识到可能表里面的字段出了问题。于是查看表里面的字段,发现有一个desc 字段和mysql中降序的关键字冲突了。然后顺手把这个字段改写成了describe。到这里,以为问题就应该解决了。谁料想,又冲突了。describe也是mysql的关键字。于是上网搜了一下mysql 关键字表。
如下是mysql关键字表
MySQL 5.5 保留关键字
ACCESSIBLE |
ADD |
ALL |
ALTER |
ANALYZE |
AND |
AS |
ASC |
ASENSITIVE |
BEFORE |
BETWEEN |
BIGINT |
BINARY |
BLOB |
BOTH |
BY |
CALL |
CASCADE |
CASE |
CHANGE |
CHAR |
CHARACTER |
CHECK |
COLLATE |
COLUMN |
CONDITION |
CONSTRAINT |
CONTINUE |
CONVERT |
CREATE |
CROSS |
CURRENT_DATE |
CURRENT_TIME |
CURRENT_TIMESTAMP |
CURRENT_USER |
CURSOR |
DATABASE |
DATABASES |
DAY_HOUR |
DAY_MICROSECOND |
DAY_MINUTE |
DAY_SECOND |
DEC |
DECIMAL |
DECLARE |
DEFAULT |
DELAYED |
DELETE |
DESC |
DESCRIBE |
DETERMINISTIC |
DISTINCT |
DISTINCTROW |
DIV |
DOUBLE |
DROP |
DUAL |
EACH |
ELSE |
ELSEIF |
ENCLOSED |
ESCAPED |
EXISTS |
EXIT |
EXPLAIN |
FALSE |
FETCH |
FLOAT |
FLOAT4 |
FLOAT8 |
FOR |
FORCE |
FOREIGN |
FROM |
FULLTEXT |
GRANT |
GROUP |
HAVING |
HIGH_PRIORITY |
HOUR_MICROSECOND |
HOUR_MINUTE |
HOUR_SECOND |
IF |
IGNORE |
IN |
INDEX |
INFILE |
INNER |
INOUT |
INSENSITIVE |
INSERT |
INT |
INT1 |
INT2 |
INT3 |
INT4 |
INT8 |
INTEGER |
INTERVAL |
INTO |
IS |
ITERATE |
JOIN |
KEY |
KEYS |
KILL |
LEADING |
LEAVE |
LEFT |
LIKE |
LIMIT |
LINEAR |
LINES |
LOAD |
LOCALTIME |
LOCALTIMESTAMP |
LOCK |
LONG |
LONGBLOB |
LONGTEXT |
LOOP |
LOW_PRIORITY |
MASTER_SSL_VERIFY_SERVER_CERT |
MATCH |
MAXVALUE |
MEDIUMBLOB |
MEDIUMINT |
MEDIUMTEXT |
MIDDLEINT |
MINUTE_MICROSECOND |
MINUTE_SECOND |
MOD |
MODIFIES |
NATURAL |
NOT |
NO_WRITE_TO_BINLOG |
NULL |
NUMERIC |
ON |
OPTIMIZE |
OPTION |
OPTIONALLY |
OR |
ORDER |
OUT |
OUTER |
OUTFILE |
PRECISION |
PRIMARY |
PROCEDURE |
PURGE |
RANGE |
READ |
READS |
READ_WRITE |
REAL |
REFERENCES |
REGEXP |
RELEASE |
RENAME |
REPEAT |
REPLACE |
REQUIRE |
RESIGNAL |
RESTRICT |
RETURN |
REVOKE |
RIGHT |
RLIKE |
SCHEMA |
SCHEMAS |
SECOND_MICROSECOND |
SELECT |
SENSITIVE |
SEPARATOR |
SET |
SHOW |
SIGNAL |
SMALLINT |
SPATIAL |
SPECIFIC |
SQL |
SQLEXCEPTION |
SQLSTATE |
SQLWARNING |
SQL_BIG_RESULT |
SQL_CALC_FOUND_ROWS |
SQL_SMALL_RESULT |
SSL |
STARTING |
STRAIGHT_JOIN |
TABLE |
TERMINATED |
THEN |
TINYBLOB |
TINYINT |
TINYTEXT |
TO |
TRAILING |
TRIGGER |
TRUE |
UNDO |
UNION |
UNIQUE |
UNLOCK |
UNSIGNED |
UPDATE |
USAGE |
USE |
USING |
UTC_DATE |
UTC_TIME |
UTC_TIMESTAMP |
VALUES |
VARBINARY |
VARCHAR |
VARCHARACTER |
VARYING |
WHEN |
WHERE |
WHILE |
WITH |
WRITE |
XOR |
YEAR_MONTH |
ZEROFILL |
MySQL 允许一些大家常用到的关键字使用英文 ` 号引起来使用,如:
ACTION
BIT
DATE
ENUM
NO
TEXT
TIME
TIMESTAMP
上述表中的关键字,在设计数据库时,应当尽量避免这些不必要的冲突。
问题解决:把关键字替换成了非关键字。
经验总结:通过程序操作数据库时,mysql会解析你代码里的sql语句,如果操作的字段中含有关键字,你写的sql语句就可能被错误解释了,sql语句也就出错了。数据库种类还是比较多的。多多少少都有点关键字,每个版本还略有不同。在设计数据库表的时候,应当设计的字段名特殊一点,尽量长一点,避免和关键字冲突。
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原文地址:http://www.cnblogs.com/clcliangcheng/p/4575680.html