CREATE TABLE IF NOT EXISTS `p_reqstats` (
`sdate` int(10) unsigned NOT NULL,
`deptID` int(10) unsigned NOT NULL,
`opID` int(10) unsigned NOT NULL,
`requests` int(10) NOT NULL,
`taken` smallint(5) unsigned NOT NULL,
`declined` smallint(5) unsigned NOT NULL,
`message` smallint(5) unsigned NOT NULL,
`initiated` smallint(5) unsigned NOT NULL,
`initiated_taken` smallint(5) unsigned NOT NULL,
`rateit` smallint(5) unsigned NOT NULL,
`ratings` smallint(5) unsigned NOT NULL,
PRIMARY KEY (`sdate`,`deptID`,`opID`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
我想知道其实部分:
PRIMARY KEY (sdate,deptID,opID)这里出现问题是因为
答案 0 :(得分:3)
一些问题:
IF NOT EXISTS
。int(10)
的含义,只是想要int
。unsigned
的含义。smallint
,但int
is recommended除非你的磁盘空间不足。所以这样的事情应该有效:
create table "p_reqstats" (
"sdate" int NOT NULL,
"deptID" int NOT NULL,
"opID" int NOT NULL,
"requests" int NOT NULL,
"taken" smallint NOT NULL,
"declined" smallint NOT NULL,
"message" smallint NOT NULL,
"initiated" smallint NOT NULL,
"initiated_taken" smallint NOT NULL,
"rateit" smallint NOT NULL,
"ratings" smallint NOT NULL,
PRIMARY KEY ("sdate","deptID","opID")
);
如果你需要额外的空格,那么无符号值会给你
那么您可以使用bigint
代替int
。