一般不要使用保留关键字。如果使用了保留关键字,将关键字前后加" ` " 可以解决问题。
MySQL允许部分关键字用做未引起来的识别符,因为许多人以前曾使用过它们。下面列出了一些例子:
ACTION,BIT,DATE,ENUM,NO,TEXT,TIME,TIMESTAMP
MySQL保留关键字如下:
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 | CONNECTION | 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 |
GOTO | 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 | LABEL |
LEADING | LEAVE | LEFT |
LIKE | LIMIT | LINEAR |
LINES | LOAD | LOCALTIME |
LOCALTIMESTAMP | LOCK | LONG |
LONGBLOB | LONGTEXT | LOOP |
LOW_PRIORITY | MATCH | 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 | RAID0 | RANGE |
READ | READS | REAL |
REFERENCES | REGEXP | RELEASE |
RENAME | REPEAT | REPLACE |
REQUIRE | RESTRICT | RETURN |
REVOKE | RIGHT | RLIKE |
SCHEMA | SCHEMAS | SECOND_MICROSECOND |
SELECT | SENSITIVE | SEPARATOR |
SET | SHOW | 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 | X509 |
XOR | YEAR_MONTH | ZEROFILL |
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