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用户管理 mysql>use mysql; 查看 mysql> select host,user,password from user ; 创建 mysql> create user zx_root IDENTIFIED by 'xxxxx'; //identified by 会将纯文本密码加密作为 阅读全文
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字符串1,属性 length2,方法charAtcharCodeAtconcatindexoflastIndexOflocaleComparematchreplacesearchslicesplitsubstrsubstringtoLowerCasetoStringtoUpperCasevalueOf静态方法String.fromCharCode3,实例1.声明var myString = new String("Every good boy does fine.");var myString = "Every good boy does fine."; 阅读全文
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主键create table feng(teamno int not null,playerno int not null,division char(6) not null,primary key(teamno))create table feng(teamno int not nullprimary key,playerno int not null,division char(6) not null,)复合主键create table feng(teamno int not null,playerno int not null,division char(6) not null,prim 阅读全文
摘要:
表创建create table mytbl(id int auto_increment not null,name char(10) not null,birth date not null,wight int,sex enum('f','m'));指定数据库引擎的表创建create table mytbl(id int auto_increment not null,name char(10) not null,birth date not null,wight int,sex enum('f','m'))engine=memo 阅读全文