... access to databases. Adatabaseuser account provides access to one and only one
database that SQLServer manages. Each user, therefore, will need an account with each
11.8 CreateaDatabase ... Server.
Each SQLServerdatabase maintains an internal registry of user accounts that are
permitted into the database. This information is stored in the table named sysusers within
the database. ... the databaseuser account.
I have been authenticated and logged into SQLServer and now I need to access data that
is stored within aSQLServer database. Without a specific databaseuser account,...
... OleDb.OleDbDataAdapter
Dim dtDisplay As New DataTable()
Try
' Take the txtSQLString text and createa data table; then set the
' data source of the data grid.
odaDisplay = ... not only creating a
point-and-click query tool that will allow the users to examine all tables in the database,
but also for using the Windows Form in an application without modification.
Technique ... example describes how to createa point-and-click
query interface using a Windows Form and display fields from individual tables as they
are chosen.
In just about every application you create, ...
... nhất và lớn nhất c a các khách hàng
select min(year(getdate())-year(BIRTHDAY)) as MINAGE,
max(year(getdate())-year(BIRTHDAY)) as MAXAGE,
avg(year(getdate())-year(BIRTHDAY)) as AVGAGE
from customers
Thống ... như sau:
5
1 Giới thiệu về SQLServer2005
SQL Server2005 là một hệ thống quản lý cơ sở dữ liệu (Relational Database
Management System (RDBMS) ) sử dụng Transact -SQL để trao đổi dữ liệu gi a Client
computer ... định ngh a bảng.
Create table Nhanvien
(
MANV NVARCHAR(10) NOT NULL,
HOTENNVARCHAR(30) NOT NULL,
GIOITINH BIT,
NGAYSINH SMALLDATETIME,
NOISINH NCHAR(50),
HSLUONG DECIMAL(4,2),
MADV INT
)
2.3.6...
... UI-related entities ina database.
Doing so certainly makes sense for many applications. What I am warning against instead is
not drawing a distinct enough line between user interface elements and ... retrieving data from, inserting data into, and updating data in the database.
A set of database interfaces should comply with the same basic design rule as other inter-
faces: well-known, standardized ... encapsulated interfaces between the database system and the objects. I call this
the Database- as-API mindset.
An application programming interface (API) is a set of interfaces that allows a system...
... cao
RDBMS and Data Management/ Session 3/26 of 30
Kiến trúc cơ sở dữ liệu quan hệ
Relational Engine
OLE DB
Storage Engine
Local
Database
Local
Database
Local
Database
Relational database ... tự
Collation điều khiển sự tổ chức lưu trữ dữ liệu ký tự trong SQLServer2005
Employee Name Employee Location
James Columbia
Pamela China
Allan Alaska
Employee Location EmployeeName
Alaska Allan
China ... Allan
China Pamela
Columbia James
Employee Location Employee Name
Alaska Allan
Columbia James
China Pamela
Săp xếp theo thứ tự tăng dần
c a trường Employee location
Theo Tiếng Anh Theo tiếng Tây Ban...
... to install a default instance or a named instance.
12. If you are installing on a Windows cluster, enter cluster configuration information.
13. Enter service account information for the SQLServer ... space for a minimal
installation, or 130 MB for a typical installation.
If you choose to install SQLServer2005 Reporting Services,
you will require an additional 5.5 MB of disk space for a ... features, including:
ã Failover clustering
ã Database mirroring
ã Snapshot databases
ã Mirrored backups
ã Online page and file restore
ã Distributed partitioned views
ã Heterogeneous replication
ã...
... hệ
Relational Engine
OLE DB
Storage Engine
Local
Database
Local
Database
Local
Database
Relational database engine có hai phần chính: relational engine
và storage engine
RDBMS and Data Management/ ... trong SQLServer2005
Employee Name Employee Location
James Columbia
Pamela China
Allan Alaska
Employee Location EmployeeName
Alaska Allan
China Pamela
Columbia James
Employee Location Employee Name
Alaska ... page
Microsoft SQLServer
Data Page
Page header
Data row 1
Data row 2
Data row 3
Free space
Loại trang
Không gian trống
Page id
RDBMS and Data Management/ Session 3/7 of 30
Giới thiệu SQL Server...
... JOIN
LoaiPhieu ON HoaDon.MaLoai = LoaiPhieu.MaLoai
WHERE HoaDon.MaLoai = 'PX' AND
DATEPART(MONTH,HoaDon.NgayBan) = @Thang AND
DATEPART(YEAR,HoaDon.NgayBan) = @Nam
GROUP BY Dia.MaDia, ... Dia ON CTiet_HD.MaDia = Dia.MaDia INNER JOIN
TheLoaiDia ON Dia.MaTL = TheLoaiDia.MaTL INNER JOIN
HoaDon ON CTiet_HD.MaHD = HoaDon.MaHD INNER JOIN
LoaiPhieu ON HoaDon.MaLoai = LoaiPhieu.MaLoai
WHERE ... HoaDon.NgayBan
FROM Dia INNER JOIN
TheLoaiDia ON Dia.MaTL = TheLoaiDia.MaTL INNER JOIN
CTiet_HD ON Dia.MaDia = CTiet_HD.MaDia INNER JOIN
HoaDon ON CTiet_HD.MaHD = HoaDon.MaHD
WHERE Dia.MaDia NOT IN
...