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mysql中的保留字段產(chǎn)生的問(wèn)題

更新時(shí)間：2015年04月26日 13:00:10 投稿：hebedich

我們?cè)谑褂胢ysql的時(shí)候要注意這方面的問(wèn)題,一個(gè)因?yàn)閿?shù)據(jù)庫(kù)字段命名不當(dāng)造成的問(wèn)題檢查起來(lái)還是相當(dāng)麻煩的,今天遇到這種問(wèn)題,花費(fèi)了很長(zhǎng)時(shí)間才找到問(wèn)題所在，這是無(wú)語(yǔ)

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server versio····這句話對(duì)于咱們并不陌生，無(wú)非就是多了“，”之類的問(wèn)題。但是你如果無(wú)意之中添加了一個(gè)mysql中的保留字段作為數(shù)據(jù)庫(kù)中存貯的字段名，悲劇就這樣發(fā)生了。

前幾天因?yàn)楣δ艿呐R時(shí)變更，需要給數(shù)據(jù)表添加一個(gè)字段用來(lái)區(qū)別導(dǎo)入的批次，我就在mysql中添加了group字段，沒(méi)想到我的噩夢(mèng)就此展開(kāi)·····
本來(lái)程序已經(jīng)接近收尾，本想著今早來(lái)公司給程序來(lái)個(gè)歡樂(lè)的結(jié)尾，沒(méi)想到····每次導(dǎo)入excel表總是提示我sql語(yǔ)句錯(cuò)誤，我變?cè)趕ql語(yǔ)句上添添減減，也沒(méi)有把錯(cuò)誤搞定，整整一個(gè)上午外加下午兩個(gè)小時(shí)，簡(jiǎn)直已經(jīng)到了抓狂的程度。簡(jiǎn)直要跪地苦思冥想，但是還是沒(méi)有搞定這個(gè)錯(cuò)誤。
把問(wèn)題放在一邊，繼續(xù)搞其他的東西····當(dāng)在寫一個(gè)group by 語(yǔ)句時(shí)，突然意識(shí)到，group 是mysql的一個(gè)保留字，就此問(wèn)題迎刃而解。切記切記，多么痛的領(lǐng)悟啊

mysql的保留字段

在MySQL中，下表中的字顯式被保留。其中大多數(shù)字進(jìn)制被標(biāo)準(zhǔn)SQL用作列名和/或表名(例如，GROUP)。少數(shù)被保留了，因?yàn)镸ySQL需要它們，在MySQL中，當(dāng)表名或字段名乃至數(shù)據(jù)庫(kù)名和保留字沖突時(shí)，在sql語(yǔ)句里可以用撇號(hào)（）括起來(lái),當(dāng)讓我們一般都盡量少使用這些保留的字段。

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