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今天调程序的时候发现的的点小东西.在Windows下,如果键值为default null 插入 "" 会有错误而如果mysql工作在Linux 下,同样的表格,则会将其值为 0值 具体如下:建表语句相同,在win与Linux下各建一个表create table test(
a int(11),
b char(11),
c varchar(20));window下执行如下语句及相应结果:mysql> insert into test set a="";
ERROR 1366 (HY000): Incorrect integer value: "" for column "a" at row 1
mysql> insert into test set a="a";
ERROR 1366 (HY000): Incorrect integer value: "a" for column "a" at row 1mysql> insert into test set a="1";
Query OK, 1 row affected (0.02 sec)mysql> select * from test;
+------+------+------+
| a | b | c |
+------+------+------+
| 1 | NULL | NULL |
+------+------+------+Linux下执行如下语句及相应结果mysql> insert into test set a="";
Query OK, 1 row affected, 1 warning (0.00 sec)mysql> insert into test set a="a";
Query OK, 1 row affected, 1 warning (0.00 sec)mysql> select * from test;
+------+------+------+
| a | b | c |
+------+------+------+
| 0 | NULL | NULL |
| 0 | NULL | NULL |
+------+------+------+发现在Windows下,不符合int类型的无法插入,而在Linux下,则将其转换为 0值存放在Widnows下执行 select * from Test 与select * from TEsT 都是从test表取数据.而在Linux下则会提示找不到Test或TEsT Linux是大小写敏感的. MySQL密码问题Centos 4.6下自动检查MySQL运行状态相关资讯      linux mysql 
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