VB+SQL教学管理系统哦rivate Sub cmdok_Click() Dim txtsql As String Dim mrc As ADODB.Recordset Dim msgtext As String If Trim(txtusername.Text) = "" Then MsgBox "请输入用户名称!", vbOKOnly, "警告" Exit Sub End If '判断输入的密码是否一致 If Trim(txtpassword1.Text ) Trim(txtpassw
ORACLE函数大全 ________________________________________ 作者：[本站编辑] 来源：[CSDN] 浏览：[ ] SQL中的单记录函数 1.ASCII 返回与指定的字符对应的十进制数; SQL> select ascii('A') A,ascii('a') a,ascii('0') zero,ascii(' ') space from dual; A A ZERO SPACE --------- --------- --------- ----
实现很简单的功能，对数据的增删改查。 use master go if exists (select * from dbo.sysdatabases where name = 'Manager') drop database Manager GO create database Manager go use Manager go if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[user_Info]')
use master go if exists (select * from dbo.sysdatabases where name = 'Hotel') drop database Hotel GO create database Hotel go use Hotel go if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[user_Info]') and OBJECTPROPERTY(id, N'Is
关于团购网站的设计 、Create Table userInfo( User_ID int identity(1,1) primary key, username varchar(50) not null,--登陆名 userpass varchar(50) not null,--登陆密码 userEmail varchar(20) not null,--用户邮箱 userPhone varchar(20) not null,--用户电话 userAdress varchar(100) not
